NOISE CANCELLATION TECHNOLOGIES INC
10-Q, 1997-08-14
MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 10-Q

/ x /  QUARTERLY  REPORT  PURSUANT  TO  SECTION  13 OR 15 (d) OF THE  SECURITIES
       EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED       June 30, 1997

- -------------------------------------------------------------------------------
COMMISSION FILE NUMBER:   0-18267
- -------------------------------------------------------------------------------

Noise Cancellation Technologies, Inc.
- -------------------------------------------------------------------------------
                   (Exact name of registrant as specified in its charter)

Delaware
59-2501025
- -------------------------------------------------------------------------------
(State or other jurisdiction of           (I.R.S. Employer Identification No.)
incorporation or organization)

1025 West Nursery Road, Suite 120, Linthicum, Maryland                21090
- -------------------------------------------------------------------------------
(Address of principal executive offices)                            (Zip Code)

- -------------------------------------------------------------------------------
(410) 636-8700
- -------------------------------------------------------------------------------
(Registrant's telephone number, including area code)


- -------------------------------------------------------------------------------
(Former name,former address and former fiscal year, if changed since 
 last report)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed  by  Section  13 or 15 (d) of the  Securities  Exchange  Act of 1934
during the preceding 12 months (or for such shorter  period that the  registrant
was  required  to file such  reports),  and (2) has been  subject to such filing
requirements for the past 90 days.
                           x   Yes       No

Indicate the number of shares  outstanding  of each of the  issuer's  classes of
common stock, as of the latest practicable date.

                    131,164,298 shares outstanding as of August 5, 1997



<PAGE>



PART I - FINANCIAL INFORMATION
ITEM 1 - FINANCIAL STATEMENTS
<TABLE>
<CAPTION>
NOISE CANCELLATION TECHNOLOGIES, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Note 1)
(Unaudited)
                                                  (In thousands, except per share amounts)
                                                   Three Months                 Six Months
                                                  Ended June 30,              Ended June 30,
                                              -----------------------     -----------------------
                                                 1996         1997           1996         1997
                                              ----------  -----------     ----------  -----------
<S>                                           <C>         <C>             <C>         <C>    
REVENUES:
  Technology licensing fees and royalties     $     713      $    210       $  1,068     $  3,210
  Product sales, net                                559           348            692          581
  Engineering and development services               32           132            224          213
                                              ---------      --------       --------     --------
     Total revenues                           $   1,304      $    690       $  1,984     $  4,004
                                              ---------      --------       --------     --------
COSTS AND EXPENSES:
  Costs of sales                              $     395      $    306       $    574     $    505
  Costs of engineering & development services        37           110            168          200
  Selling, general and administrative             1,356         1,417          2,325        2,251
  Research and development                        1,160         1,420          2,761        3,012
  Equity in net loss of unconsolidated 
    affiliates                                       -             -              80            -
  Interest expense                                   29            47             24           47
                                              ---------      --------       --------     --------
     Total costs and expenses                 $   2,977      $  3,300       $  5,932     $  6,015
                                              ---------      --------       --------     --------

NET (LOSS)                                    $  (1,673)     $ (2,610)      $ (3,948)    $ (2,011)
                                              =========      ========       ========     ========

Weighted average number of common
   shares outstanding                            95,696       121,566         94,468      117,332
                                              =========      ========       ========     ========

NET (LOSS) PER COMMON SHARE                   $    (.02)     $   (.02)      $   (.04)    $   (.02)
                                              =========      ========       ========     ========


The  accompanying  notes  are an  integral  part of the  condensed  consolidated
financial statements.
</TABLE>



<PAGE>


<TABLE>
<CAPTION>


NOISE CANCELLATION TECHNOLOGIES, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED BALANCE SHEETS (Note 1)
(Unaudited)
                                                                 (In thousands of dollars)
                                                             December 31,            June 30,
               ASSETS                                            1996                  1997
                                                             ------------          -----------
Current assets:                                                                    (Unaudited)
<S>                                                          <C>                   <C>   
   Cash and cash equivalents (Note 1)                        $       368           $    1,122
   Accounts receivable:
     Trade:
        Technology license fees and royalties                $       150           $      210
        Joint ventures and affiliates                                  2                   27
        Other                                                        392                  447
     Unbilled                                                         63                   77
     Allowance for doubtful accounts                                (123)                (112)
                                                             -----------           ----------
          Total accounts receivable                          $       484           $      649
   
   Inventories, net of reserves (Note 2)                             900                1,244
   Other current assets                                              207                   16
                                                             -----------           ----------
          Total current assets                               $     1,959           $    3,031

Property and equipment, net                                        2,053                1,831
Patent rights and other intangibles, net                           1,823                1,656
Other assets                                                          46                   52
                                                             -----------           ----------
                                                             $     5,881           $    6,570
                                                             ===========           ==========
              LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
   Accounts payable                                          $     1,465           $    1,201
   Accrued expenses                                                1,187                  711
   Accrued payroll, taxes and related expenses                       618                  491
   Customers' advances                                                 1                    -
                                                             -----------           ----------
          Total current liabilities                          $     3,271           $    2,403
                                                             -----------           ----------

Long term obligations                                        $         -           $      113
Commitments and contingencies (Note 4)
                                                             -----------           ----------
          Total other liabilities                            $         -           $      113
                                                             -----------           ----------

               STOCKHOLDERS' EQUITY (Note 3)
Preferred stock, $.10 par value, 10,000,000 shares 
   authorized, none issued
Common stock, $.01 par value, 140,000,000 and
   185,000,000 shares, respectively, authorized; 
   issued and outstanding 111,614,405 and 
   128,297,155 shares, respectively                          $     1,116           $    1,283
Additional paid-in-capital                                        85,025               88,317
Accumulated deficit                                              (83,673)             (85,684)
Cumulative translation adjustment                                    142                  138
                                                             -----------           ----------
          Total stockholders' equity                         $     2,610           $    4,054
                                                             -----------           ----------

                                                             $     5,881           $    6,570
                                                             ===========           ==========

The  accompanying  notes  are an  integral  part of the  condensed  consolidated
financial statements.

</TABLE>


<PAGE>
<TABLE>
<CAPTION>
NOISE CANCELLATION TECHNOLOGIES, INC. AND SUBSIDIARIES
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Note 1)
(Unaudited)
                                                            (Thousands of dollars)
                                                                  Six Months
                                                                 Ended June 30,
                                                           --------------------------
                                                               1996           1997
                                                           ------------   -----------
<S>                                                        <C>            <C>    
Cash flows from operating activities:
   Net (loss)                                              $  (3,948)     $   (2,011)
   Adjustments to reconcile net loss to net cash
   (used in) operating activities:
      Depreciation and amortization                              481             443
      Common stock issued as consideration for:
        Compensation                                               6               -
        Interest                                                   -              52
      Common stock retired as consideration for:
        Employee expenses                                         (5)              -
      Provision for doubtful accounts                             46             209
      Equity in net loss of unconsolidated affiliates             80               -
      Unrealized foreign currency (gain)                         (46)             (8)
      Loss on disposition of fixed assets                          -              63
      Changes in operating assets and liabilities:
        (Increase) in accounts receivable                       (120)           (378)
        (Increase) decrease in inventories                       513            (344)
        Decrease in other assets                                 155             184
        (Decrease) in accounts payable and accrued expenses     (208)           (672)
        (Decrease) in other liabilities                          (51)            (77)
                                                          -----------     -----------
      Net cash (used in) operating activities             $   (3,097)     $   (2,539)
                                                          -----------     -----------

Cash flows from investing activities:
   Capital expenditures                                   $     (105)     $     (115)
   Acquisition of patent rights                                    -               -
                                                          -----------     -----------
      Net cash (used in) investing activities             $     (105)     $     (115)
                                                          -----------     -----------

Cash flows from financing activities:
   Proceeds from:
      Notes (net)                                         $    1,170      $    3,408
      Sale of common stock                                       996               -
      Exercise of stock purchase warrants and options            104               -
                                                          ----------      ----------
      Net cash provided by financing activities           $    2,270      $    3,408
                                                          ----------      ----------

Net increase (decrease) in cash and cash equivalents      $     (932)     $      754
Cash and cash equivalents - beginning of period                1,831             368
                                                          ----------      ----------

Cash and cash equivalents - end of period                 $      899      $    1,122
                                                          ==========      ==========

Cash paid for interest                                    $        2      $        2
                                                          ==========      ==========

The accompanying notes are an integral part of the condensed consolidated 
financial statements.
</TABLE>
                      


<PAGE>

NOISE CANCELLATION TECHNOLOGIES, INC.
NOTES TO THE CONDENSED CONSOLIDATED FINANCIAL
STATEMENTS (UNAUDITED)

1.  BASIS OF PRESENTATION:

   The accompanying  unaudited condensed  consolidated financial statements have
been prepared in accordance with generally  accepted  accounting  principles for
interim  financial  information and with the  instructions to Form 10-Q and Rule
10-01 of Regulation S-X. Accordingly, they do not include all of the information
and footnotes required by generally accepted accounting  principles for complete
financial statements. In the opinion of management,  all adjustments (consisting
of normal recurring accruals and certain adjustments to reserves and allowances)
considered  necessary  for a fair  presentation  have been  included.  Operating
results  for the six month  period  ended  June 30,  1997,  are not  necessarily
indicative of the results that may be expected for the year ending  December 31,
1997. For further  information,  refer to the consolidated  financial statements
and footnotes thereto included in the Noise Cancellation Technologies, Inc. (the
"Company" or "NCT") Annual  Report on Form 10-K, as amended,  for the year ended
December 31, 1996.

   The  Company  has  incurred  substantial  losses  from  operations  since its
inception,  which  have  been  recurring  and  amounted  to $85.7  million  on a
cumulative  basis through June 30, 1997.  These losses,  which include the costs
for development of products for commercial use, have been funded  primarily from
the sale of common  stock,  including  the  exercise  of  warrants or options to
purchase  common stock,  and by technology  licensing fees and  engineering  and
development  funds  received  from joint venture and other  strategic  partners.
Agreements with joint venture and other  strategic  partners  generally  require
that a portion of the initial cash flows,  if any,  generated by the ventures or
alliances be paid on a preferential  basis to the Company's  co-venturers  until
the technology  licensing fees and engineering and development funds provided to
the venture or the Company are recovered.

   Cash, cash equivalents and short-term  investments  amount to $1.1 million at
June 30, 1997,  increasing  from $0.4  million at December 31, 1996.  Management
does not believe that available  funds are sufficient to sustain the Company for
the next 12 months. Management believes that available cash and cash anticipated
from the exercise of warrants and options,  the funding  derived from forecasted
technology  licensing  fees,  royalties  and product sales and  engineering  and
development   revenue  along  with  reduced   operating   expenses  and  capital
expenditures  and the  "First  Quarter  1997  Financing"  and the July 22,  1997
private placement  discussed below should be sufficient to sustain the Company's
anticipated  future level of operations  into 1998.  However,  the period during
1998  through  which  it can  be  sustained  is  dependent  upon  the  level  of
realization of funding from technology  licensing fees and royalties and product
sales  and  engineering  and  development  revenue  and the  achievement  of the
operating  cost  savings  from the  events  described  above,  all of which  are
presently  uncertain.  In the event that forecasted  technology  licensing fees,
royalties and product sales,  and engineering  and  development  revenue are not
realized as  planned,  then  management  believes  available  funds will only be
sufficient  to  sustain  the  Company  into the  third  quarter  of 1997  unless
additional working capital financing can be obtained.  There is no assurance any
such financing is or would become available.

   There can be no  assurance  that  additional  funding will be provided by the
Company's efforts to raise additional  capital or by technology  licensing fees,
royalties and product sales and  engineering and  development  revenue.  In that
event, the Company would have to further and substantially cut back its level of
operations in order to conserve  cash.  These  reductions  could have an adverse
effect on the Company's  relations  with its strategic  partners and  customers.
Uncertainty  exists with respect to the adequacy of current funds to support the
Company's  activities  until positive cash flow from operations can be achieved,
and with respect to the availability of financing from other sources to fund any
cash deficiencies.

   Between  January 15, 1997 and March 25,  1997,  the  Company  entered  into a
series of subscription agreements to sell an aggregate amount of $3.9 million of
non-voting  subordinated  convertible debentures (the "Debentures") in a private
placement to five unrelated investors (the "Investors") through multiple dealers
(the  "First  Quarter  1997  Financing").  Of  these  subscriptions,   sales  of
Debentures in an aggregate  amount of $3.4 million were completed from which the
net proceeds to the Company were $3.2  million.  An  additional  $0.5 million of
Debentures  has been  subscribed  for by one  investor  which may close,  at the
Company's  election,  after that investor  converts $0.75 million of its current
holdings of $1.5 million of  Debentures  into common  stock of the Company.  The
Debentures,  issued  pursuant to Regulation S of the  Securities Act of 1933, as
amended,  are due  between  January  15,  2000 and  March  25,  2000 and earn 8%
interest per annum,  payable  quarterly in either cash or the  Company's  common
stock at the  Company's  sole  option.  Subject to certain  common  stock resale
restrictions,  the Investors, at their discretion, have the right to convert the
principal  due on the  Debentures  into the  Company's  common stock at any time
after  the 45th day  following  the  date of the sale of the  Debentures  to the
Investors. In the event of such a conversion, the conversion price is the lesser
of 85% of the closing  bid price of the  Company's  common  stock on the closing
date of the  Debentures'  sale or between 75% to 60%  (depending on the Investor
and other conditions) of the average closing bid price for the five trading days
immediately preceding the conversion.  To provide for the above noted conversion
and interest  payment  options,  the Company  reserved 15 million  shares of the
Company's  common stock for issuance  upon such  conversion.  Subject to certain
conditions,  the Company also has the right to require the  Investors to convert
all or part of the Debentures  under the above noted conversion price conditions
after  February 15, 1998.  As of June 30, 1997,  the Investors had converted all
$3.4 million of the Debentures into 16.3 million shares of the Company's  common
stock. At the Company's  election,  interest due through the conversion dates of
the Debentures was paid through the issuance of an additional 0.2 million shares
of the Company's common stock.

   Please  refer to Note 8. for a  discussion  of the  July 22,  1997  private
placement.

   On March 28, 1997, the Company and New  Transducers  Ltd.  ("NXT"),  a wholly
owned  subsidiary  of Verity  Group PLC  ("Verity")  executed a cross  licensing
agreement (the "Cross License").  Under terms of the Cross License,  the Company
licensed  patents and patents pending which relate to Flat Panel  Transducer(TM)
("FPT(TM)")  technology  to NXT,  and NXT licensed  patents and patents  pending
which relate to parallel  technology  to the Company.  In  consideration  of the
license,  NCT recorded a $3.0 million license fee receivable from NXT as well as
royalties on future licensing and product  revenue.  The Company also executed a
security deed (the  "Security  Deed") in favor of NXT granting NXT a conditional
assignment  in the patents and patents  pending  licensed to NXT under the Cross
License  in the event a default in a certain  payment to be made by the  Company
under the Cross License continued beyond fifteen days. Concurrent with the Cross
License,  the Company and Verity executed agreements granting each an option for
a four year period  commencing on March 28, 1998, to acquire a specified  amount
of the common stock of the other subject to certain conditions and restrictions.
With  respect to the  Company's  option to Verity  (the  "Verity  Option"),  3.8
million  shares of  common  stock  (approximately  3.4% of the then  issued  and
outstanding  common  stock) of the  Company  are  covered by such option and the
Company  executed a  registration  rights  agreement (the  "Registration  Rights
Agreement")  covering such shares.  Five million ordinary shares  (approximately
2.0% of the then issued and outstanding  ordinary  shares) of Verity are covered
by the option  granted by Verity to the Company.  The exercise  price under each
option is the fair value of a share of the  applicable  stock on March 28, 1997,
the date of grant.  If the Company  does not obtain  stockholder  approval of an
amendment to its Restated  Certificate  of  Incorporation  increasing its common
stock capital by an amount  sufficient to provide shares of the Company's common
stock  issuable  upon the full  exercise  of the  option  granted  to  Verity by
September 30, 1997, both options expire. On April 15, 1997,  Verity, NXT and the
Company executed several  agreements and other documents (the "New  Agreements")
terminating  the Cross  License,  the Security  Deed,  the Verity Option and the
Registration   Rights   Agreement  and  replacing   them  with  new   agreements
(respectively the "New Cross License",  the "New Security Deed", the "New Verity
Option" and the "New  Registration  Rights  Agreement").  The  material  changes
effected by the New  Agreements  were the  inclusion  of Verity as a party along
with its wholly owned subsidiary NXT;  providing that the license fee payable to
NCT could be paid in ordinary shares of Verity stock;  and reducing the exercise
price  under the option  granted to Verity to purchase  shares of the  Company's
common  stock to $0.30 per  share.  At the June 19,  1997  Annual  Meeting,  the
stockholders  approved an amendment to the  Company's  Restated  Certificate  of
Incorporation  to increase the authorized  number of shares of common stock from
140 million shares to 185 million shares,  and such amendment  became  effective
when it was filed in the office of the  Secretary  of State of  Delaware on June
20, 1997.

   The accompanying  financial  statements have been prepared  assuming that the
Company will  continue as a going  concern,  which  contemplates  continuity  of
operations,  realization  of  assets  and  satisfaction  of  liabilities  in the
ordinary  course of business.  The propriety of using the going concern basis is
dependent  upon,  among  other  things,  the  achievement  of future  profitable
operations and the ability to generate  sufficient cash from operations,  public
and private  financings and other funding sources to meet its  obligations.  The
uncertainties  described above raise  substantial  doubt at June 30, 1997, about
the Company's ability to continue as a going concern. The accompanying financial
statements do not include any adjustments  relating to the recoverability of the
carrying  amount of  recorded  assets or the  amount of  liabilities  that might
result from the outcome of these uncertainties.

2.  INVENTORIES:

      Inventories comprise the following:

    (Thousands of dollars)               December 31,           June 30,
                                             1996                 1997
                                         ------------        ---------------
    Components                               $543               $  578
    Finished Goods                            619                  834
                                           ------               ------
    Gross Inventory                        $1,162               $1,412
    Reserve for Obsolete & Slow Moving
    Inventory                                (262)                (168)
                                           ------               ------
       Inventory, Net of Reserves            $900               $1,244
                                           ======               ======
<PAGE>
3.  STOCKHOLDERS EQUITY:

   The  changes in  stockholders'  equity  during the six months  ended June 30,
1997, were as follows:

(In thousands)                 Net        Net                       Balance
               Balance at      Sale of    loss                      at
               December 31,    Common     for the   Translation     June 30,
               1996            Stock      Period    Adjustment      1997
               ------------    -------    -------   -----------     --------
Common Stock:
   Shares         111,614       16,683         --          --        128,297
   Amount        $  1,116      $   167    $    --     $    --       $  1,283
Additional
  Paid-in      
  Capital          85,025        3,292         --          --         88,317
Accumulated
  Deficit         (83,673)          --     (2,011)         --        (85,684)
Cumulative
  Translation
  Adjustment          142           --         --          (4)           138


4.  LITIGATION:

   On or about June 15, 1995,  Guido  Valerio  filed suit against the Company in
the  Tribunal  of Milan,  Milan,  Italy.  The suit  requests  the Court to award
judgment in favor of Mr.  Valerio as follows:  (i)  establish and declare that a
proposed independent sales representation  agreement submitted to Mr. Valerio by
the Company and signed by Mr.  Valerio but not  executed by the Company was made
and entered  into  between Mr.  Valerio and the Company on June 30,  1992;  (ii)
declare that the Company is guilty of breach of contract and that the  purported
agreement  was  terminated  by  unilateral  and  illegitimate  withdrawal by the
company;  (iii) order the Company to pay Mr. Valerio $30,000 for certain amounts
alleged to be owing to Mr. Valerio by the Company; (iv) order the Company to pay
commissions  to which Mr.  Valerio  would have been  entitled if the Company had
followed up on certain alleged  contacts made by Mr. Valerio for an amount to be
assessed by technicians and  accountants  from the Court Advisory  Service;  (v)
order the  Company  to pay  damages  for the harm and  losses  sustained  by Mr.
Valerio in terms of loss of  earnings  and  failure to receive due payment in an
amount such as shall be determined following preliminary  investigations and the
assessment to be made by experts and accountants from the Court Advisory Service
and in any event no less than 3 billion Lira ($18.9 million); and (vi) order the
Company to pay  damages for the harm done to Mr.  Valerio's  image for an amount
such as the judge shall deem  equitable and in case for no less than 500 million
Lira  ($3.1  million).  The  Company  retained  an  Italian  law firm as special
litigation counsel to the Company in its defense of this suit. On March 6, 1996,
the  Company,  through  its  Italian  counsel,  filed a brief of reply  with the
Tribunal of Milan  setting  forth the  Company's  position  that:  (i) the Civil
Tribunal of Milan is not the proper venue for the suit, (ii) Mr. Valerio's claim
is  groundless  since the parties  never  entered into an  agreement,  and (iii)
because Mr.  Valerio is not enrolled in the official  Register of Agents,  under
applicable  Italian law Mr. Valerio is not entitled to any  compensation for his
alleged  activities.  A preliminary  hearing before the Tribunal was held on May
30, 1996,  certain pretrial  discovery has been completed and a hearing before a
Discovery  Judge was held on October 17, 1996.  Submissions of the parties final
pleadings  were to be  made in  connection  with  the  next  hearing  which  was
scheduled for April 3, 1997. On April 3, 1997,  the  Discovery  Judge  postponed
this hearing to May 19, 1998, due to a reorganization of all proceedings  before
the Tribunal of Milan.  Management is of the opinion that the lawsuit is without
merit and will  contest  it  vigorously.  In the  opinion of  management,  after
consultation  with outside  counsel,  resolution  of this suit should not have a
material  adverse  effect on the  Company's  financial  position or  operations.
However,  in the event  that the  lawsuit  does  result in a  substantial  final
judgment against the Company,  said judgment could have a severe material effect
on quarterly or annual operating results.

<PAGE>
 5.    COMMON STOCK

   As discussed  above in Note 1., between  January 15, 1997 and March 25, 1997,
the  Company  entered  into a  series  of  subscription  agreements  to  sell an
aggregate amount of $3.9 million of Debentures. Of these subscriptions, sales of
Debentures in an aggregate amount of $3.4 million were completed. As of June 30,
1997,  the  Investors  had converted  $3.4 million of the  Debentures  into 16.3
million  shares  of the  Company's  common  stock.  At the  Company's  election,
interest due through the conversion dates of the Debentures was paid through the
issuance of an additional 0.2 million shares of the Company's common stock.

   On June 19, 1997 the  stockholders  approved an  amendment  to the  Company's
Restated  Certificate  of  Incorporation  to increase the  authorized  number of
shares of common  stock from 140  million  shares to 185  million  shares.  Such
action was deemed by the Board of  Directors  to be in the best  interest of the
Company to make  additional  shares of the Company's  common stock available for
obligations undertaken by the Company in connection with the New Agreements with
Verity and NXT described in Note 1., public or private  financings,  present and
future employee benefit programs and other corporate purposes. The Company plans
to reserve 3,9 million  shares of such  additional  shares for issuance upon the
exercise  of the New Verity  Option and 2.6  million  shares of such  additional
shares for issuance  upon the  exercise of options  granted or to be granted and
future  grants  of  restricted   stock  awards  under  the  Noise   Cancellation
Technologies, Inc. Stock Incentive Plan (the "1992 Plan").


6.   COMMON STOCK OPTIONS

   On May 2, 1997, under the 1992 Plan, the Company granted to certain employees
and consultants  options to purchase the Company's common stock at the then fair
market value of such stock. The options were granted as part of the compensation
to be paid to  certain  employees  and  consultants  for their  services  to the
Company  in 1997.  A total of 1.8  million  options  to  purchase  shares of the
Company's common stock were issued of which 0.8 million were granted to officers
of the Company.  Such options become  exercisable  only when an amendment to the
Company's  Restated  Certificate  of  Incorporation  to  increase  the number of
authorized  common shares becomes  effective.  Such an amendment was approved by
the  Company's  stockholders  on  June  19,  1997,  and  became  effective  upon
completion  of the  requisite  filing on June 20, 1997,  at which time the above
noted options became fully vested and exercisable.

    Also on May 2, 1997, options to purchase 0.1 million shares of the Company's
common stock were issued outside the 1992 Plan to two non-employee  directors of
the Company.  Such options will be exercisable only upon stockholder approval of
their  issuance  which the Company  plans to seek at the next Annual  Meeting of
Stockholders.

    The fair  market  value of the  Company's  common  stock on May 2,  1997 was
$0.2656 per share, the closing price of the Company's common stock on the NASDAQ
Stock Market.

    On June 19,  1997,  the  Company  granted,  in  connection  with an offer of
employment,  options to purchase  10,000  shares of the  Company's  common stock
under the 1992 Plan. The fair market value of the Company's common stock on June
19, 1997 was $0.2813 per share,  the closing price of the Company's common stock
on the NASDAQ Stock Market.


7.   COMMON STOCK WARRANTS

    On January  22,  1997,  the Board of  Directors  extended  for two years the
expiration  dates of warrants to purchase  2.7 million  shares of the  Company's
common  stock at the price of $0.75 per share held by  seventeen  persons.  Such
extension  with respect to the warrants  owned by five directors and officers of
the Company was made subject to the approval of the Company's stockholders.  The
closing price of the Company's common stock as traded on the Nasdaq Stock Market
was $0.50 per share. The original expiration date of these warrants was December
31,  1997,  and the new  expiration  date is December  31,  1999.  If,  prior to
December  31,  1999,  all of these  warrants are  exercised,  the Company  would
receive $2.1 million in consideration  for the issuance of 2.7 million shares of
common  stock.  Five of the persons who own 2.2  million of these  warrants  are
directors  or officers  of the  Company  and the others are current  non-officer
employees or former directors, officers or non-officer employees of the Company.
On June 19,  1997  the  stockholders  approved  the  extension  of such of those
warrants held by directors and officers of the Company.


 8.    SUBSEQUENT EVENTS

    On July 22, 1997 the Company sold 2.9 million shares,  in the aggregate,  of
its common stock at a price of $0.175 per share, pursuant to Regulation D of the
Securities  Act of 1933, as amended,  in a private  placement  that provided net
proceeds to the Company of $0.5 million (the "July 22, 1997 Private Placement").





<PAGE>


ITEM 2.

               MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL
                      CONDITION AND RESULTS OF OPERATIONS
                     FOR THE SIX MONTHS ENDED JUNE 30, 1997

      GENERAL BUSINESS ENVIRONMENT

   The Company is focused on the  commercialization  of its technology through
technology  licensing  fees,  royalties and product sales.  In prior years,  the
Company  derived the majority of its revenues from  engineering  and development
funding provided by established  companies  willing to assist the Company in the
development  of its active  noise and  vibration  control  technology,  and from
technology  licensing  fees  paid  by such  companies.  The  Company's  strategy
generally has been to obtain  technology  licensing fees when  initiating  joint
ventures and alliances with new strategic partners.  Revenues from product sales
were limited to sales of specialty products and prototypes. During the first six
months  of  1997,  the  Company  received  approximately  5.3% of its  operating
revenues from engineering and development funding. Since 1991, excluding quarter
to quarter  variations,  revenues  from product sales have been  increasing  and
management expects that technology  licensing fees,  royalties and product sales
will   become   the   principal   source  of  the   Company's   revenue  as  the
commercialization of its technology proceeds.

   The Company has shifted its focus to technology licensing fees, royalties and
products that represent near term revenue  generation.  This is reflected in the
fact that 80.2% of the  Company's  total revenue in the first six months of 1997
represents  technology licensing fees. There can be no assurance that additional
technology licensing fees, will continue at that level.

   Note 1. to the accompanying  Condensed  Consolidated Financial Statements and
the liquidity and capital  resources  section which follows describe the current
status of the  Company's  available  cash balances and the  uncertainties  which
exist that raise  substantial doubt as to the Company's ability to continue as a
going concern.

   As  distribution  channels are  established  and as product  sales and market
acceptance  and  awareness of the  commercial  applications  of active noise and
vibration control build,  revenues from technology licensing fees, royalties and
product  sales  are  forecast  to  fund an  increasing  share  of the  Company's
requirements.  The funding  from these  sources,  if  realized,  will reduce the
Company's  former  dependence on engineering and development  funding and equity
financing.

   From the Company's  inception through June 30, 1997, its operating  revenues,
including technology licensing fees and royalties, product sales and engineering
and development services, have consisted of approximately 22% product sales, 47%
engineering and development services and 31% technology licensing fees.

   The  Company  has  entered   into  a  number  of  alliances   and   strategic
relationships  with established firms for the integration of its technology into
products.  The speed with which the Company can achieve the commercialization of
its  technology  depends in large  part upon the time  taken by these  firms and
their  customers  for  product  testing,  and  their  assessment  of how best to
integrate  the  technology  into their  products  and into  their  manufacturing
operations.  While the  Company  works with these  firms on product  testing and
integration,  it is not always able to influence how quickly this process can be
completed.

   The Company  continues  to sell and ship  ProActive(TM)  and  NoiseBuster(TM)
headsets  in 1997.  The  Company is now selling  products  through  three of its
alliances: Walker is manufacturing and selling industrial silencers;  Siemens is
buying and contracting with the Company to install quieting headsets for patient
use in Siemens' MRI machines;  and Ultra is installing production model aircraft
cabin quieting systems in turboprop aircraft. The Company is entitled to receive
royalties from Walker on its sales of industrial silencers, direct product sales
revenue from Siemens'  purchase of headsets,  and commencing in 1998,  royalties
from Ultra on its sale of aircraft cabin quieting systems.  Management  believes
these  activities  help  demonstrate  the range of commercial  potential for the
Company's  technology  and will  contribute  to the  Company's  transition  from
engineering and development to technology  licensing fees, royalties and product
sales.
<PAGE>
   Product revenues for the six months ended June 30, 1996 and 1997 were:

                                PRODUCT REVENUES


              Three Months Ended June 30,      Six Months Ended June 30,
              ----------------------------    ----------------------------
                Amount    As a % of Total       Amount    As a % of Total
              ----------- ----------------    ----------- ----------------
  Product     1996  1997   1996     1997      1996  1997   1996    1997
- ------------- ----- ----- -------  -------    ----- ----- ------- --------
Headsets      $537  $333   96.1%    95.7%     $667  $549   96.4%    94.5%
Fan Quieting     -     8    0.0%     2.3%        -    14    0.0%     2.4%
Communications   -     6    0.0%     1.7%        -    11    0.0%     1.9%
Other           22     1    3.9%     0.3        25     7    3.6%     1.2%
              ----- ----- -------  -------    ----- ----- ------- --------
   Total      $559  $348  100.0%   100.0%     $692  $581  100.0%   100.0%
              ===== ===== =======  =======    ===== ===== ======= ========


   The Company has continued to make  substantial  investments in its technology
and  intellectual  property and has incurred  development  costs for engineering
prototypes,  pre-production  models  and  field  testing  of  several  products.
Management believes that the Company's investment in its technology has resulted
in the expansion of its intellectual  property  portfolio and improvement in the
functionality, speed and cost of components and products.

   Between January 15, 1997 and March 25, 1997, the Company  conducted the First
Quarter 1997 Financing,  by entering into a series of subscription agreements to
sell an aggregate amount of $3.9 million of Debentures in a private placement to
five  Investors  through  multiple  dealers.  Of these  subscriptions,  sales of
Debentures in an aggregate  amount of $3.4 million were completed from which the
net proceeds to the Company were $3.2  million.  An  additional  $0.5 million of
Debentures  has been  subscribed  for by one  investor  which may close,  at the
Company's  election,  after that investor  converts $0.75 million of its current
holdings of $1.5 million of  Debentures  into common  stock of the Company.  The
Debentures,  issued  pursuant to Regulation S of the  Securities Act of 1933, as
amended,  are due  between  January  15,  2000 and  March  25,  2000 and earn 8%
interest per annum,  payable  quarterly in either cash or the  Company's  common
stock at the  Company's  sole  option.  Subject to certain  common  stock resale
restrictions,  the Investors, at their discretion, have the right to convert the
principal  due on the  Debentures  into the  Company's  common stock at any time
after  the 45th day  following  the  date of the sale of the  Debentures  to the
Investors. In the event of such a conversion, the conversion price is the lesser
of 85% of the closing  bid price of the  Company's  common  stock on the closing
date of the  Debentures'  sale or between 75% to 60%  (depending on the Investor
and other conditions) of the average closing bid price for the five trading days
immediately preceding the conversion.  To provide for the above noted conversion
and interest  payment  options,  the Company  reserved 15 million  shares of the
Company's  common stock for issuance  upon such  conversion.  Subject to certain
conditions,  the Company also has the right to require the  Investors to convert
all or part of the Debentures  under the above noted conversion price conditions
after  February 15, 1998.  As of June 30, 1997,  the Investors had converted all
$3.4 million of the Debentures into 16.3 million shares of the Company's  common
stock. At the Company's  election,  interest due through the conversion dates of
the Debentures was paid through the issuance of an additional 0.2 million shares
of the Company's common stock.
<PAGE>
   On March 28, 1997, the Company and NXT, a wholly owned  subsidiary of Verity,
executed  the Cross  License.  Under  terms of the Cross  License,  the  Company
licensed  patents and patents pending which relate to Flat Panel  Transducer(TM)
("FPT(TM)")  technology  to NXT,  and NXT licensed  patents and patents  pending
which relate to parallel  technology  to the Company.  In  consideration  of the
license,  NCT recorded a $3.0 million license fee receivable from NXT as well as
royalties on future licensing and product revenue. The Company also executed the
Security  Deed in favor of NXT  granting  NXT a  conditional  assignment  in the
patents and patents pending licensed to NXT under the Cross License in the event
a default in a certain payment to be made by the Company under the Cross License
continued  beyond fifteen days.  Concurrent with the Cross License,  the Company
and Verity  executed  agreements  granting each an option for a four year period
commencing on March 28, 1998, to acquire a specified  amount of the common stock
of the other subject to certain conditions and restrictions. With respect to the
Company's option to Verity (the "Verity  Option"),  3.8 million shares of common
stock  (approximately  3.4% of the then issued and outstanding  common stock) of
the Company are covered by such option and the Company executed the Registration
Rights   Agreement   covering  such  shares.   Five  million   ordinary   shares
(approximately  2.0% of the then  issued  and  outstanding  ordinary  shares) of
Verity are covered by the option granted by Verity to the Company.  The exercise
price under each option is the fair value of a share of the applicable  stock on
March 28, 1997,  the date of grant.  If the Company does not obtain  stockholder
approval of an amendment to its Restated Certificate of Incorporation increasing
its common  stock  capital  by an amount  sufficient  to  provide  shares of the
Company's  common stock issuable upon the full exercise of the option granted to
Verity by September 30, 1997,  both options expire.  On April 15, 1997,  Verity,
NXT and the Company  executed the New Agreements  terminating the Cross License,
the Security Deed, the Verity Option and the  Registration  Rights Agreement and
replacing them respectively  with the New Cross License,  the New Security Deed,
the New Verity Option and the New Registration  Rights Agreement.  The material
changes  effected by the New Agreements  were the inclusion of Verity as a party
along with its wholly  owned  subsidiary  NXT;  providing  that the  license fee
payable to NCT could be paid in ordinary  shares of Verity  stock;  and reducing
the exercise price under the option granted to Verity to purchase  shares of the
Company's  common stock to $0.30 per share. At the June 19, 1997 Annual Meeting,
the stockholders  approved an amendment to the Company's Restated Certificate of
Incorporation  to increase the authorized  number of shares of common stock from
140 million shares to 185 million shares,  and such amendment  became  effective
when it was filed in the office of the  Secretary  of State of  Delaware on June
20, 1997.

   Management  believes  that  available  cash  and  cash  anticipated  from the
exercise of warrants and options, the funding derived from forecasted technology
licensing  fees,  royalties and product sales,  and  engineering and development
revenue,  along with reduced operating expenses and capital expenditures and the
First Quarter 1997 Financing and the July 22, 1997 Private  Placement  should be
sufficient to sustain the Company's  anticipated future level of operations into
1998.  However,  the period  during 1998  through  which it can be  sustained is
dependent  upon the level of realization  of funding from  technology  licensing
fees and royalties and product sales and engineering and development revenue and
the achievement of the operating cost savings from the events  described  above,
all of which are presently  uncertain.  In the event that forecasted  technology
licensing  fees,  royalties and product sales,  and  engineering and development
revenue are not realized as planned,  then management  believes  available funds
will only be  sufficient  to sustain the Company into the third  quarter of 1997
unless  additional  working  capital  financing  can be  obtained.  There  is no
assurance any such financing is or would become available.

   There can be no  assurance  that  additional  funding will be provided by the
Company's efforts to raise additional  capital or by technology  licensing fees,
royalties and product sales and  engineering and  development  revenue.  In that
event, the Company would have to further and substantially cut back its level of
operations in order to conserve  cash.  These  reductions  could have an adverse
effect on the Company's  relations  with its strategic  partners and  customers.
Uncertainty  exists with respect to the adequacy of current funds to support the
Company's  activities  until positive cash flow from operations can be achieved,
and with respect to the availability of financing from other sources to fund any
cash deficiencies.

   Management  believes  that the  funding  provided by the  additional  capital
referred to above coupled with anticipated  increased product sales,  technology
licensing  fees,  royalties,  and cost savings,  if realized,  should enable the
Company to continue operations into 1998. If the Company is not able to generate
additional capital,  increase technology  licensing fees,  royalties and product
sales, or generate  additional capital, it will have to further cut its level of
operations  substantially  in order to conserve  cash.  (Refer to "Liquidity and
Capital  Resources" below and to Note 1. - "Notes to the Condensed  Consolidated
Financial  Statements"  for a  further  discussion  relating  to  continuity  of
operations.)

<PAGE>
      RESULTS OF OPERATIONS

   Total revenues for the first six months of 1997 were $4.0 million compared to
$2.0 million for the same period in 1996, an increase of $2.0 million or 100%.

   Product  sales  decreased  to $0.6  million  versus $0.7  million in 1996,  a
decrease of $0.1 million or 16% primarily  reflecting decreased hearing products
sales due to a backlog of primarily  NoiseBuster Extreme(TM).  Engineering  and
development services remained flat at $0.2 million in the first half of 1996 and
1997.

   Technology  licensing  fees in the first six months of 1997 were $3.2 million
versus $1.1 million in 1996,  an increase of $2.1 million or 191%  primarily due
to the $3.0 million in Verity license fees described above.

   Cost of product  sales  decreased  to $0.5  million  versus $0.6 million in
1996, a decrease of $0.1 million or 20% primarily due to the decrease in product
sales discussed  above.  Product margin decreased to 13% percent from 17% during
the same period in 1996  reflecting  first half 1997  increases  in reserves for
obsolete and slow moving inventory. Cost of engineering and development services
were unchanged remaining at $0.2 million in both 1996 and 1997. The gross margin
on engineering and development services decreased to 6% from 25% during the same
period in 1996, primarily due to more profitable contracts in 1996.

   Selling, general and administrative expenses were unchanged remaining at $2.3
million in both 1996 and 1997.

   Research and development  expenditures  for the first six months of 1997 were
$3.0  million  versus $2.8  million in 1996,  an increase of $0.2  million or 9%
primarily  due to supporting  product  development  in the Company's  efforts in
audio,  communications,  and microphones. The Company continues to be focused on
products  utilizing its hearing products,  audio,  communications and microphone
technologies,  products which have been developed within a short time period and
are targeted for rapidly emerging markets.

   Under most of the  Company's  joint  venture  agreements,  the Company is not
required to fund any capital  requirements  of these joint  ventures  beyond its
initial  capital  contribution.  In  accordance  with  U.S.  generally  accepted
accounting principles,  when the Company's share of cumulative losses equals its
investment  and  the  Company  has no  obligation  or  intention  to  fund  such
additional losses, the Company suspends applying the equity method of accounting
for its investment.  The Company will not be able to record any equity in income
with respect to an entity  until its share of future  profits is  sufficient  to
recover any cumulative losses that have not previously been recorded. During the
first half of 1996, the Company  recognized a $0.1 million charge related to its
share of losses in OnActive  Technologies,  L.L.C.  which  brought the Company's
equity in the joint venture to zero.  There was no such charge in the first half
of 1997.


      LIQUIDITY AND CAPITAL RESOURCES

   The  Company  has  incurred  substantial  losses  from  operations  since its
inception,  which  have  been  recurring  and  amounted  to $85.7  million  on a
cumulative  basis through June 30, 1997.  These losses,  which include the costs
for development of products for commercial use, have been funded  primarily from
the sale of common  stock,  including  the  exercise  of  warrants or options to
purchase  common stock,  and by technology  licensing fees and  engineering  and
development  funds  received  from joint venture and other  strategic  partners.
Agreements with joint venture and other  strategic  partners  generally  require
that a portion of the initial cash flows,  if any,  generated by the ventures or
alliances be paid on a preferential  basis to the Company's  co-venturers  until
the license fees and engineering  and development  funds provided to the venture
or the Company are recovered.

   In January 1996, the Company  adopted a plan that  management  believed would
generate  sufficient funds for the Company to continue its operations into 1997.
The Company did not meet the plan's revenue targets for 1996 and as noted below,
found it necessary to raise additional capital to fund it's 1997 operations.
<PAGE>
   Between January 15, 1997 and March 25, 1997, the Company  conducted the First
Quarter 1997 Financing by entering into a series of  subscription  agreements to
sell an aggregate amount of $3.9 million of Debentures in a private placement to
the five unrelated Investors. Of these subscriptions,  sales of Debentures in an
aggregate  amount of $3.4 million were  completed from which the net proceeds to
the Company were $3.2 million. An additional $0.5 million of Debentures has been
subscribed for by one investor which may close, at the Company's election, after
that investor  converts $0.75 million of its current holdings of $1.5 million of
Debentures into common stock of the Company. The Debentures,  issued pursuant to
Regulation S of the Securities Act of 1933, as amended,  are due between January
15, 2000 and March 25, 2000 and earn 8% interest per annum, payable quarterly in
either cash or the Company's common stock at the Company's sole option.  Subject
to certain common stock resale restrictions, the Investors, at their discretion,
have the right to convert the principal due on the Debentures into the Company's
common  stock at any time after the 45th day  following  the date of the sale of
the  Debentures  to the  Investors.  In the  event  of  such a  conversion,  the
conversion  price is the lesser of 85% of the closing bid price of the Company's
common stock on the closing date of the  Debentures'  sale or between 75% to 60%
(depending  on the Investor  and other  conditions)  of the average  closing bid
price for the five trading days immediately preceding the conversion. To provide
for the above  noted  conversion  and  interest  payment  options,  the  Company
reserved 15 million shares of the Company's  common stock for issuance upon such
conversion.  Subject to certain  conditions,  the Company  also has the right to
require the Investors to convert all or part of the  Debentures  under the above
noted  conversion price conditions after February 15, 1998. As of June 30, 1997,
the Investors had converted all $3.4 million of the Debentures into 16.3 million
shares of the Company's  common stock. At the Company's  election,  interest due
through the conversion  dates of the Debentures was paid through the issuance of
an additional 0.2 million shares of the Company's common stock.

    On July 22, 1997 the Company sold 2.9 million shares,  in the aggregate,  of
its  common  stock at a price of $0.175 per share in the July 22,  1997  Private
Placement that provided net proceeds to the Company of $0.5 million.

    Management  adopted  a plan  for  1997  which  it  believes  will  generate
sufficient  funds  for  the  Company  to  continue  its  operations  into  1998.
Satisfactory execution of this plan, and avoidance of seeking additional working
capital from further sales of the Company's  common  stock,  is contingent  upon
management's   ability  to  successfully   complete  its  current   negotiations
concerning  agreements which will provide  additional  technology  license fees,
royalty revenues and product sales to the Company in 1997 and 1998. No assurance
can be given concerning a favorable outcome to these negotiations.

   Management  believes  that  available  cash  and  cash  anticipated  from the
exercise of warrants and options, the funding derived from forecasted technology
licensing  fees,  royalties and product sales,  and  engineering and development
revenue, the operating cost savings from the reduction in employees, and reduced
capital  expenditures  and the First  Quarter 1997  Financing  and July 22, 1997
Private  Placement  should be sufficient  to sustain the  Company's  anticipated
future level of operations  into 1998.  However,  the period during 1998 through
which it can be sustained is dependent  upon the level of realization of funding
from  technology  licensing fees and royalties and product sales and engineering
and  development  revenue and the achievement of the operating cost savings from
the events described above, all of which are presently  uncertain.  In the event
that  forecasted  technology  licensing fees,  royalties and product sales,  and
engineering and development revenue are not realized as planned, then management
believes available funds will only be sufficient to sustain the Company into the
third  quarter  of 1997  unless  additional  working  capital  financing  can be
obtained. There is no assurance any such financing is or would become available.

   There can be no  assurance  that  additional  funding will be provided by the
Company's efforts to raise additional  capital or by technology  licensing fees,
royalties and product sales and  engineering and  development  revenue.  In that
event, the Company would have to further and substantially cut back its level of
operations in order to conserve  cash.  These  reductions  could have an adverse
effect on the Company's  relations  with its strategic  partners and  customers.
Uncertainty  exists with respect to the adequacy of current funds to support the
Company's  activities  until positive cash flow from operations can be achieved,
and with respect to the availability of financing from other sources to fund any
cash deficiencies.

   Management  believes that the funding  provided by the  additional  capital
referred to above coupled with anticipated  increased product sales,  technology
licensing  fees,  royalties,  and cost savings,  if realized,  should enable the
Company to  continue  operations  into  1998.  (Refer to Note 1. - "Notes to the
Condensed  Consolidated  Financial Statements" for a further discussion relating
to continuity of operations.)  Success in generating  technology licensing fees,
royalties  and product  sales are  significant  and  critical  to the  Company's
ability to  overcome  its present  financial  difficulties.  The Company  cannot
predict whether it will be successful in obtaining market  acceptance of its new
products or in completing  its current  negotiations  with respect to technology
license fees and royalty  revenues.  The Company  will  monitor its  performance
against the 1997 plan on a monthly basis and, if necessary,  reduce its level of
operations  accordingly.  The Company  believes  that the plan  discussed  above
constitutes a viable plan for the  continuation  of the Company's  business into
1998.

   There  can be no  assurance  that  funding  will be  provided  by  additional
capital,  technology licensing fees, royalties,  product sales,  engineering and
development  revenue.  In that event, the Company would have to further cut back
its  level  of  operations  substantially  in  order  to  conserve  cash.  These
reductions  could have an adverse  effect on the  Company's  relations  with its
strategic  partners and customers.  The uncertainty with respect to the adequacy
of current funds to support the Company's  activities  until  positive cash flow
from  operations  can be  achieved,  and with  respect  to the  availability  of
financing from other sources to fund any cash  deficiencies,  raises substantial
doubt  about the  Company's  ability to  continue  as a going  concern.  Further
discussion  of these  uncertainties  is  presented  in Note 1. -  "Notes  to the
Condensed Consolidated Financial Statements".
<PAGE>
   At June 30, 1997,  cash and  short-term  investments  were $1.1 million.  The
available resources were invested in interest bearing money market accounts. The
Company's  investment  objective  is  preservation  of capital  while  earning a
moderate rate of return.

   The  Company's  working  capital  increased to $0.6 million at June 30, 1997,
from $(1.3)  million at December  31,  1996.  This  increase of $1.9 million was
funded primarily by the revenue and equity transactions described above and used
primarily to fund operations for the period.

   During  the  first  six  months  of  1997,  the net  cash  used in  operating
activities  was  $2.5  million,  compared  to $3.1  million  used  in  operating
activities during the same period of 1996.

   Net inventory  increased  during the first six months of 1997 by $0.3 million
due primarily to stocking for anticipated sales of the ProActiveTM  headsets and
initial stocking of the Company's new communications products.

   Cash provided by financing activities amounted to $3.4 million reflecting the
sale of the Debentures discussed above.

   The Company has no lines of credit with banks or other  lending  institutions
and therefore has no unused borrowing capacity.


      CAPITAL EXPENDITURES

   The Company intends to continue its business strategy of working with supply,
manufacturing,   distribution  and  marketing   partners  to  commercialize  its
technology.  The benefits of this strategy  include:  (i) dependable  sources of
controllers,  integrated  circuits  and  other  system  components  from  supply
partners,  which leverages on their purchasing  power,  provides  important cost
savings and accesses the most advanced  technologies;  (ii)  utilization  of the
existing manufacturing capacity of the Company's allies, enabling the Company to
integrate its active technology into products with limited capital investment in
production  facilities  and  manufacturing   personnel;   and  (iii)  access  to
well-established channels of distribution and marketing capability of leaders in
several market segments.

   The  Company's  strategic  agreements  have  enabled  the Company to focus on
developing  product  applications  for its  technology  and limit the  Company's
capital requirements.

   There were no material  commitments  for capital  expenditures as of June 30,
1997, and no material commitments are anticipated in the near future.



<PAGE>


PART II - OTHER INFORMATION

ITEM 1 - LEGAL PROCEEDINGS

      For discussion of legal proceedings,  see Note 4 - "Notes to the Condensed
Consolidated Financial Statements" which is incorporated by reference herein.


ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY-HOLDERS

      An annual  meeting of  stockholders  of the  Company  was held on June 19,
1997. At the meeting,  Jay M. Haft,  Michael J. Parrella,  John J. McCloy II and
Sam Oolie were elected directors, each to serve until the next annual meeting of
stockholders and until his successor is elected and qualified.  The stockholders
also  approved  an  amendment  of  the   Company's   Restated   Certificate   of
Incorporation  to  increase  the  number of shares  of common  stock  authorized
thereunder from 140,000,000 shares to 185,000,000 shares, approved the extension
of certain warrants owned by certain officers and directors of the Company,  and
ratified the  appointment  of Richard A. Eisner & Company,  LLP as the Company's
independent  auditors for the year ending  December 31, 1997.  The vote taken at
such meeting was as follows:

      (a)   With respect to the election of the directors

                                       FOR             WITHHELD
             Jay M. Haft            87,411,429        2,807,968
             Michael J. Parrella    87,673,769        2,545,628
             John J. McCloy II      87,532,669        2,686,728
             Sam Oolie              87,710,269        2,509,128


      (b)   With respect to the proposal to approve the amendment of the 
            Company's Restated Certificate of Incorporation

                                                 ABSTENTIONS AND
                   FOR           AGAINST        BROKER NON-VOTES
               83,656,241       6,063,314            482,812


      (c)   With  respect to the  proposal to approve the  extension  of certain
            warrants owned by certain officers and directors of the Company.


                                                 ABSTENTIONS AND
                   FOR           AGAINST        BROKER NON-VOTES
               76,003,140       6,095,500            890,770



      (d)   With respect to the proposal to ratify the selection of Richard A. 
            Eisner & Company, LLP independent auditors for the Company's fiscal
            year ending December 31, 1997


                                                 ABSTENTIONS AND
                   FOR           AGAINST        BROKER NON-VOTES
               88,530,794       1,235,054            453,549

<PAGE>
ITEM 6 - EXHIBITS

      (a)   Exhibits

            Exhibit No. Description

            3(a)        Certificate of Amendment of the Restated  Certificate of
                        Incorporation  of the Company filed in the Office of the
                        Secretary  of State of the State of Delaware on June 20,
                        1997.

            10(a)       Cross License Agreement dated April 15, 1997, among
                        Verity Group plc, New Transducers Limited and Noise
                        Cancellation Technologies, Inc. **

            10(b)       Security Deed dated April 14, 1997, from Noise 
                        Cancellation Technologies, Inc. to Verity Group plc.

            10(c)       Common Stock Purchase Option dated April 15, 1997, 
                        from Noise Cancellation Technologies, Inc. to Verity 
                        Group plc.

            10(d)       Letter Agreement dated April 17, 1997, from Noise 
                        Cancellation Technologies, Inc. to Verity Group plc.

            11          Computation of Net Profit (Loss) Per Share.

            27          Financial Data Schedule.

**  Confidential  treatment  requested  for a  portion  of this  document.  Such
    portion has been omitted from the document and identified by asterisks. Such
    portion also has been filed  separately with the Commission  pursuant to the
    Company's application for confidential treatment.




<PAGE>



                      NOISE CANCELLATION TECHNOLOGIES, INC.

                                    SIGNATURE

Pursuant to the  requirement of Section 13 or 15(d) of the  Securities  Exchange
Act of 1934,  the  Registrant  has duly  caused  this report to be signed on its
behalf by the undersigned, thereunto duly authorized.


NOISE CANCELLATION TECHNOLOGIES, INC.



By:   /s/ MICHAEL J. PARRELLA
      -----------------------
      Michael J. Parrella, President


By:   /s/ JEFFREY C. ZEITLIN
      -----------------------
      Jeffrey C. Zeitlin
      Senior Vice President, Operations, and
      Chief Financial Officer


Dated:  August 14, 1997


<PAGE>


                                                                   EXHIBIT 3(a)
                            CERTIFICATE OF AMENDMENT
                                       OF
                      RESTATED CERTIFICATE OF INCORPORATION
                                       OF
                      NOISE CANCELLATION TECHNOLOGIES, INC.


NOISE   CANCELLATION   TECHNOLOGIES,   INC.,   a   Delaware   corporation   (the
"Corporation") hereby certifies as follows:

      FIRST:  That the Board of  Directors of the  Corporation,  at a meeting of
      such Board held May 2, 1997, adopted a resolution  proposing and declaring
      advisable  the  following   amendment  to  the  Restated   Certificate  of
      Incorporation  of  the  Corporation,  and  declaring  that  such  proposed
      amendment  be  submitted  for  consideration  by the  stockholders  of the
      Corporation  entitled to vote in respect thereof.  The resolution  setting
      forth the proposed amendment is as follows:

      "RESOLVED, that paragraph (a) of Article IV of the Restated Certificate of
      Incorporation of the Corporation, be amended to read as follows:

      `(a)  Authorized  Shares.  The total  number of shares of stock  which the
      Corporation  shall have  authority  to issue is  195,000,000  which  shall
      consist of 185,000,000 shares, $.01 par value,  designated as Common Stock
      and 10,000,000 shares, $.10 par value, designated as Preferred Stock.'"

      SECOND:  Paragraph (a) of Article IV of the Restated Certificate of
      Incorporation, relating to the capitalization of the Corporation,is hereby
      deleted and amended to read in its entirety as follows:

      "(a)  Authorized  Shares.  The total  number of shares of stock  which the
      Corporation  shall have  authority  to issue is  195,000,000  which  shall
      consist of 185,000,000 shares, $.01 par value,  designated as Common Stock
      and 10,000,000 shares, $.10 par value, designated as Preferred Stock."

      THIRD:  The amendment  effected herein has been approved by the holders of
      at least a  majority  of all the  outstanding  shares  of the  Corporation
      entitled  to vote  thereon at the Annual  Meeting of  Stockholders  of the
      Corporation held on June 19, 1997.

      FOURTH:  The amendment effected herein was duly adopted in accordance 
      with the applicable provisions of Section 242 of the General Corporation 
      law of the State of Delaware.

     IN WITNESS WHEREOF, Noise Cancellation  Technologies,  Inc. has caused this
Certificate of Amendment to be signed by Michael J. Parrella, its President, and
attested to by John B. Horton, its Secretary, this 19th day of June, 1997.

ATTEST:                             Noise Cancellation Technologies, Inc.



By:   /s/ JOHN B. HORTON            By:   /s/ MICHAEL J. PARRELLA
      -------------------------           -----------------------
      John B. Horton, Secretary           Michael J. Parrella, President



<PAGE>

                             CONFIDENTIAL TREATMENT
                                                             EXHIBIT NO. 10(a)

                             CROSS LICENCE AGREEMENT


Cross  Licence  Agreement  made this 15th day of April,  1997 by and between (1)
Verity  Group plc, a public  company  incorporated  in England  and Wales  under
number  514718 with its  registered  office at Stonehill,  Huntingdon  PE18 6ED,
England  ("Verity");  (2) New Transducers  Limited, a private company limited by
shares  incorporated  in  England  and  Wales  under  number  3135528  with  its
registered  office at Stonehill,  Huntingdon  PE18 6ED,  England ("NXT") and (3)
Noise Cancellation  Technologies,  Inc., a Delaware  corporation with offices at
1025 West Nursery Road, Linthicum, Maryland 21090, USA, ("NCTI").

WHEREAS NXT is engaged in the  development  and commercial  exploitation of flat
panel speakers  including  distributed mode loudspeakers and ancillary panel and
transducer technology; and

WHEREAS NCTI is engaged in the development and commercial exploitation of active
wave management technology including flat panel speakers; and

WHEREAS NXT and NCTI are both engaged in the  separate and parallel  development
of panel loudspeaker technologies whereby controversies between NXT and NCTI may
have  already  arisen and could  arise in the future or  continue to arise as to
their rights as against each other relating to their respective  technologies at
31 December 1996; and

WHEREAS  NXT and  NCTI  wish  to  settle  such  controversies  amicably  between
themselves  in full  accordance  with  the  applicable  laws in  order  to avoid
litigation,  to promote  healthy  competition  by  accelerating  the  process of
bringing  products which benefit from both technologies to market and to broaden
access to both technologies for potential licensees; and

WHEREAS  NXT and  NCTI  also  recognize  that,  in view of the  nature  of their
respective  technologies  and the fields and potential  fields of  applications,
each party's  technology  as at 31 December 1996 will or is likely to contribute
to new products  which are brought to the market and for this reason each of the
parties is willing to grant the licences in this Agreement.



<PAGE>


NOW THEREFORE,  in consideration of the mutual covenants  contained  herein,  as
well as other good and valuable  consideration,  the receipt and  sufficiency of
which are hereby acknowledged, the parties agree as follows:

1.    Definitions
As used herein, the terms described below have the following meanings.

1.1   "Affiliate" shall mean:
      (A)   any legal entity in which a party has an Interest;
      (B) any  legal  entity  which  directly  or  indirectly  Controls  a party
      ("Parent"); 
      (C) any legal entity in which a Parent has an Interest; or 
      (D) any company  listed in Schedule D so long as the percentage of shares
      held by a party or an  Affiliate  as  defined in (A) - (C) does not fall 
      below the percentage stated for that company in Schedule D.
      For purposes of this  Agreement  "Control" of an entity shall be deemed to
      exist by virtue of having the right to influence the operation and affairs
      thereof by holding  directly  51% or more of each of the equity  interests
      and voting rights in such entity.  "Interest" in an entity shall be deemed
      to exist by virtue of owning voting rights equal to or greater than 50% of
      all voting rights in such entity.
1.2   "Cardinal Breach" shall mean any of the following:
      (A)   the granting or  purporting to grant by NCTI of any licence which is
            outside the terms of the NXT Technology Licence;
      (B)   any challenge by NCTI or any of its Affiliates or any challenge by a
            third party  assisted in any manner by NCTI or any of its Affiliates
            as to the  validity,  subsistence,  or  scope  of the  Licensed  NXT
            Patents,  any other  related  future NXT patents or the Licensed NXT
            Technology, including NXT's ownership of or entitlement to the same;
      (C)   the commencement or maintenance of infringement  proceedings by NCTI
            or any of its  Affiliates or  licensees,  or by any third party with
            the assistance of NCTI or any of its Affiliates,  against NXT or any
            of its Affiliates or licensees in respect of products  covered by or
            embodying patents or technology used or licensed by NXT;
      (D)   the  occurrence  of any event or  transaction  which  results in any
            third party  acquiring  directly or indirectly  majority  beneficial
            ownership  of or effective  control of the Licensed  NCTI Patents or
            the Licensed NCTI Technology.
1.3  "Chairman's  Letter" means the letter  addressed to Verity from Jay M. Haft
(Chairman of NCTI) in agreed  terms.  
1.4 "DERA  Technology"  means the patents,
associated know how and other intellectual  property rights licensed at any time
to Verity  and/or NXT by the Defence and  Evaluation  Research  Agency or by any
other similar emanation of the Secretary of State for Defence.
1.5   "Effective Date" means 28 March 1997.
1.6  "Ground  Based  Vehicles"  shall mean all civil and all  military  vehicles
running  on two or more  wheels or on one or more  tracks or  treads,  including
without  limitation  automobiles,  jeeps (and other  vehicles  competitive  with
jeeps),  all-terrain vehicles and snow cats, hovercraft,  trucks and vans of any
class,  emergency  vehicles,  buses,  all  agricultural  and farm vehicles,  all
construction  vehicles (including,  without limitation,  cranes, lifts and earth
moving equipment) motorcycles,  snowmobiles, trolleys, trains and other vehicles
that travel on or are guided by one or more rails. 
1.7 "Letter of Opinion"  means the letter  addressed  to Verity from John Horton
(in-house legal counsel to NCTI) and countersigned by Michael Parrella,  each of
NCTI,  under  which an opinion is given in  relation  to,  inter  alia,  the due
execution,  authorisation and  enforceability  of, inter alia, this Agreement in
agreed terms.
1.8 "Licensed NCTI Patents" shall mean all published or unpublished  patents and
patent   applications  and  filed  disclosures   (including  any  continuations,
continuations-in-part, divisions, extensions, reissues, re-examinations,
renewals or equivalent applications whenever and wherever filed) which:
      (A) have been filed or made prior to 31 December  1996;  and 
      (B) relate to flat panel speakers, acoustic objects, transducers or 
          related acoustic technology; and
      (C) are owned by or licensed to NCTI or its Affiliates (other than the 
          Licensed NXT Patents)
      including,  without limitation,  those listed in Schedule A and those also
      included by operation of the further undertaking in Schedule A.

<PAGE>
1.9 "Licensed NCTI Technology" shall mean confidential  information in existence
prior to 31 December 1996 and within the custody,  possession,  power or control
of NCTI or its Affiliates  which  supports,  amplifies,  explains or enables the
design or manufacture of products  embodying any of the specifications or claims
of the Licensed NCTI Patents, but excluding such confidential  information which
is held under a duty of  non-disclosure  to a non-Affiliate.  
1.10 "Licensed NXT Patents" shall mean all published or unpublished  patents and
patent   applications   (including  any  continuations,   continuations-in-part,
divisions, extensions, reissues, re-examinations or renewals) which:
      (A) have been filed or made prior to 31 December  1996;  and 
      (B) relate to flat panel speakers, acoustic objects, transducers or 
          related acoustic technology; and
      (C) are owned by or  licensed to NXT or its  Affiliates  (other than the
          Licensed NCTI Patents and the DERA Technology).
      including, without limitation, those listed in Schedule B.
1.11 "Licensed NXT Technology" shall mean confidential  information in existence
prior to 31 December 1996 and within the custody,  possession,  power or control
of NXT excluding the DERA  Technology  which  supports,  amplifies,  explains or
enables  the  design  or   manufacture   of  products   embodying   any  of  the
specifications  or  claims of the  Licensed  NXT  Patents,  but  excluding  such
confidential  information  which  is held  under a duty of  non-disclosure  to a
non-Affiliate.  
1.12  "Licensed  Products"  shall mean any product or  component
which incorporates, embodies, is covered by, is claimed by, or is based upon any
of the Licensed NXT Patents,  the  Licensed NXT  Technology,  the Licensed  NCTI
Patents or the Licensed NCTI Technology.


<PAGE>


1.13  "Multi-Field Components" shall mean:
      (A)   components  to  be  incorporated  in  sound   propagation  or  sound
            reproduction devices (including but not limited to panels,  exciters
            or  transducers)  which may be utilised in one or more fields of use
            as  defined  in  articles  1.14 and  1.26  but are not  specifically
            designed for any particular field of use; or
      (B)   devices designed to replace traditional  loudspeaker drive units. 
1.14  "NCTI Fields" shall mean the following  fields of use for flat panel 
transducer and audio speaker products:
      (A)   Ground Based Vehicles.
      (B)   Aircraft including,  but not limited to, all civil and military 
            fixed and rotary  wing  aircraft  of any nature and any other craft
            capable of sustained flight.
      (C)   Marine vessels including, but not limited to all civil and military
            surface and subsurface vessels, ships and boats.
      (D)   Communications   handsets  the  sole  purpose  of  which  is  audio
            communication limited to telephones,  cellular telephones,  speaker
            telephones, telephone  conferencing,  two-way radios, mobile 
            radios, ham radios, CB radios, public telephones,  wireless 
            telephones,  SMR telephones, answering machines, pagers.
      (E)   Headsets, headphones, earplugs, earbuds, earmuffs, and all forms of
            "on the ear" and "in the ear" sound generating devices.
      (F)   Hearing  aids,  hearing  assistance  devices  and other  devices to
            assist impaired hearing.
      (G)   All  devices  and  systems  where  the sole  purpose  is  reducing,
            isolating, controlling or attenuating noise or vibration.
1.15 "NCTI Option  Agreement"  shall mean the Common Stock Purchase Option to be
granted by NCTI to Verity in agreed terms. 
1.16 "NCTI  Technology  Licence" shall mean the licence  granted to Verity under
articles 2.1-2.4 of this Agreement.
1.17 "Net Sales Revenues" shall mean the revenues  received from the sale, lease
or other transfer by a party of Licensed Products less:
       (A) costs of packing,  transportation  and  insurance;  
       (B) sales,  value added and other taxes not based on income;  
       (C) ordinary trade  discounts and  commissions;  
       (D) customs  duties and  expenses;  and 
       (E)  royalties payable to third parties.
1.18 "Net Licensing  Revenues" shall mean the gross revenues  received by either
party from its  respective  licensing of third parties  including  Affiliates to
make or produce Licensed Products less:
       (A)  royalties  payable  to third  parties;  and 
       (B) taxes not based upon income.
1.19 "Non US Patents" means the Licensed NCTI Patents  excluding the US Patents.
1.20 "NXT  Technology  Licence"  shall  mean the  licence  granted to NCTI under
articles 2.5 - 2.6 of this  Agreement.  
1.21 "Premium  Shares"  means  3,350,000 ordinary shares of 5p each in the 
capital of Verity credited as fully paid. 
1.22 "Premium  Reduction" means US$150,000  multiplied by the number of 
anniversaries since  the  date  of  this  Agreement  up to a  maximum  of  
US$3,000,000.  
1.23 "Registration  Rights  Agreement" means the registration  rights agreement
to be entered into by NCTI and Verity in agreed terms. 
1.24 "Security Deed" shall mean the agreement of even date between NCTI, Verity 
and NXT relating to the Licensed NCTI Patents.  
1.25 "US Patents" shall mean such of the Licensed NCTI Patents as have been 
made,  filed or registered in the United States.  
<PAGE>
1.26 "Verity Fields" shall  mean the  following  fields of use for flat  panel 
transducer  and audio speaker products:
      (A)   Consumer audio  including but not limited to flat panel speakers for
            stereos,  home theatres,  radios,  televisions and the like (whether
            separate or integrated).
      (B)   Pro-audio including but not limited to ceiling tiles, wall speakers,
            theatre speakers, speakers for commercial uses, airport speakers and
            outdoor speakers.
      (C)   Multi-media   including  but  not  limited  to  personal  computers,
            workstations, laptop computers, notebook computers, personal digital
            assistants,  game machines,  teleconferencing and video conferencing
            equipment,  dealing room equipment,  Internet equipment and monitors
            and displays of all types.
      (D)   Marketing and promotional  devices including but not limited to bill
            boards, point of purchase devices, display cases and windows.
      (E)   Domestic and industrial appliances including but not limited to dish
            washers, clothes washers, vacuum cleaners,  microwave ovens, clothes
            dryers,  stoves,  range hoods (cooker hoods), air conditioners,  air
            coolers, humidifiers and air purifiers.
      (F)   Multi-Field Components except where the application of the component
            is known to be in NCTI Fields.
      (G)   Any  field  for  the  propagation  and  reproduction  of  sound  not
            otherwise covered by the NCTI Fields or this definition.
1.27 "Verity Option  Agreement"  shall mean the deed of option in respect of the
option to be granted by Verity to NCTI dated 28 March 1997.  
1.28 "Verity Option Amendment  Agreement" shall mean the letter agreement to be
entered into between Verity and NCTI in agreed terms.  
In this  Agreement where the context  admits:
1.29 words and phrases the  definitions of which are contained or referred to in
Part XXIV  Companies  Act 1985  shall be  construed  as having the  meanings  so
attributed to them. 
1.30 references to any document being in agreed terms are to that document in 
the form signed on behalf of the parties for identification.



<PAGE>


2.    Licences
      NCTI Technology Licence
2.1 Subject to the terms and conditions of this Agreement and subject to certain
rights granted  previously by NCTI to Electrolux (to the extent that such rights
have been  disclosed in writing to Verity) and in  consideration  of the Premium
Shares  (deemed  for  the  purposes  of  this  Agreement  to  have  a  value  of
US$3,000,000  by  reference  to the mid market  price on close of business on 14
April 1997) to be  allotted  under  article 3 and the  royalties  payable  under
article 4, NCTI hereby grants to Verity with effect from the  Effective  Date an
exclusive  worldwide  licence (with a right to  sub-license  on a  non-exclusive
basis only) for the Verity Fields to make, have made, use, distribute,  sell and
have sold products which incorporate, embody, are covered by, are claimed by, or
are based upon any of the US Patents. 
2.2 Subject to the terms and conditions of this Agreement and subject to certain
rights granted  previously by NCTI to Electrolux (to the extent that such rights
have been  disclosed  in  writing to Verity)  and also in  consideration  of the
payment of the  royalties in article 4, NCTI hereby grants to Verity with effect
from  the  Effective  Date an  exclusive  worldwide  licence  (with  a right  to
sub-license on a  non-exclusive  basis only) for the Verity Fields to make, have
made, use,  distribute,  sell and have sold products which incorporate,  embody,
are  covered  by, are claimed by, or are based upon any of the Non US Patents or
the Licensed NCTI Technology.
2.3 In further consideration for the payment of the royalties in article 4, NCTI
hereby undertakes to use its best endeavours to discharge the restrictions which
prevent it from  granting any  non-exclusive  licences for ** and, to the extent
that such  restrictions  are  discharged  and NCTI is in a position to grant any
licence,  NCTI grants to Verity a non-exclusive  worldwide licence (with a right
to sub-license) for ** to make, have made, use,  distribute,  sell and have sold
products which incorporate, embody, are covered by, are claimed by, or are based
upon any of the Licensed NCTI Patents or the Licensed NCTI Technology.
2.4  Verity  shall use  reasonable endeavours to exploit the patents and 
technology licensed under this Agreement.
    NXT Technology Licence
2.5 Subject to the terms and conditions of this  Agreement and in  consideration
for the royalties payable under article 4, NXT hereby grants to NCTI with effect
from the Effective  Date a worldwide  licence (with a right to  sub-license on a
non-exclusive  basis only) to make,  have made, use,  distribute,  sell and have
sold products which incorporate,  embody, are covered by, are claimed by, or are
based upon any of the Licensed NXT Patents or Licensed NXT Technology:
      (A) on an  exclusive  basis for the NCTI  Fields  excluding Ground Based
          Vehicles; and 
      (B) on a non-exclusive basis for Ground Based Vehicles.

** Confidential Treatment requested for a portion of this document.  Such
portion has been omitted from the document and identified by asterisks.  Such
portion also has been filed separately with the Commission pursuant to the 
Company's application for confidential treatment.

<PAGE>
2.6 NCTI shall use  reasonable  endeavours to exploit the patents and technology
licensed under this Agreement.


2.7   Licensing
      (A)   None of the parties  shall grant or purport to grant any licences of
            the rights granted under this Agreement on terms which do not comply
            with articles 2, 6, 9, 10, and 13. Further, the parties shall ensure
            that all licences  granted in respect of any Licensed  Product after
            the date of this Agreement  shall include the Licensed NCTI Patents,
            the  Licensed  NCTI  Technology,  the  Licensed  NXT Patents and the
            Licensed NXT  Technology to the extent that this is permitted by the
            terms of this Agreement.
      (B)   Any licence granted by any of the parties under this Agreement shall
            prohibit assignment and sublicensing by the licensee. Further, other
            than the  difference  in the  permitted  fields of use,  none of the
            parties shall grant licences to its Affiliates on preferential terms
            compared to non-Affiliates.
2.8   Notice of licensing
     Within 3 months of granting any licence under the terms of this  Agreement,
the  relevant  party  shall  give  written  notice to the other  parties  of the
identity of the licensee and the terms of such licence.
2.9   Patent Notice
      The parties shall use all reasonable  endeavours to ensure that any party,
which is licensed to use the  Licensed  NCTI  Patents  and/or the  Licensed  NXT
Patents as a consequence of this Agreement,  shall use a legend on each Licensed
Product (or where not practical,  on the packaging for such Licensed Product) to
identify the patent or patents (if any) from the  Licensed  NCTI Patents and the
Licensed  NXT  Patents  which  are  applicable  to the  Licensed  Product.  
2.10  Ownership
      Each of the parties  acknowledges  that  ownership  of the  Licensed  NCTI
Patents, the Licensed NCTI Technology, the Licensed NXT Patents and the Licensed
NXT  Technology  shall  not be  affected  by the  operation  of this  Agreement.
Further,  none of the  parties  shall  acquire  any  rights  in any of the other
party's  intellectual  property  rights  except as is expressly  set out in this
Agreement.

3.    Exclusivity Premium
3.1 In consideration of the grant by NCTI of the exclusive licence under article
2.1 of this Agreement,  Verity shall by 15 May 1997, and subject in all respects
to due compliance  prior to such  allotment  with any legal  regulatory or other
requirements  including the London Stock Exchange  Limited agreeing to admit the
Premium  Shares to listing and  listing  becoming  effective,  allot the Premium
Shares to NCTI.  
3.2 In the  event  that the  Premium  Shares  are not  allotted pursuant to 
article 3.1 by 15 May 1997 then:
      (A)   the  obligation  on Verity to allot the Premium  Shares  pursuant to
            article 3.1 shall lapse and article 3.1 shall have no further  force
            and  effect  and  none  of the  parties  shall  have  any  liability
            hereunder; and
      (B) Verity shall pay to NCTI the cash sum of US$3,000,000.
3.3 For the  avoidance  of doubt,  the  operation  of article  3.2 shall have no
effect upon the licences  granted by NCTI to Verity  pursuant to article 2 which
shall remain in full force and effect.

4.    Royalties
4.1   Royalties
      As part of the  consideration  for the rights granted by NCTI to Verity in
this  Agreement,  Verity shall pay royalties to NCTI in accordance with Schedule
C. In consideration of the rights granted by NXT to NCTI in this Agreement, NCTI
shall pay royalties to NXT in accordance with Schedule C. 
4.2   Payment
      Royalties  shall  be  paid  to  the  party  entitled  to the  same  within
forty-five  (45)  days from the end of each  quarter  of each  calendar  year as
provided in Article 7. The paying  parties  agree that the  receiving  party may
inspect its  royalty/revenue  records  once a year upon thirty (30) days written
notice, at the inspecting  party's own expense.  All such royalty payments shall
be exclusive of VAT or any other sales tax.  All payments  under this  Agreement
shall be made in US dollars. 
4.3   Late Payment
      Any payment not made on its due date will require the defaulting  party to
pay interest in order to cover the default at the rate of the then current prime
rate at The Chase Manhattan Bank NA. The non-defaulting  party shall be entitled
to set-off any late payment and interest  against any royalty payment  otherwise
due to the defaulting party.

5.  Disclosure of Information, Data and Know-How
5.1 NCTI shall  disclose to Verity such of the Licensed NCTI  Technology as NCTI
believes in its sole opinion is necessary to assist with the design, manufacture
and  marketing  of  Licensed  Products.  NXT shall  disclose to NCTI such of the
Licensed  NXT  Technology  as NXT in its sole  opinion  believes is necessary to
assist with the design, manufacture and marketing of Licensed Products.
<PAGE>
6.    Confidentiality
6.1   Treatment
      Any of the Licensed NCTI Technology, the Licensed NXT Technology, or other
information of one party relating to trade secrets,  processes,  formulas,  data
and know-how,  discoveries,  developments,  designs,  improvements,  inventions,
techniques,  marketing  plans,  strategies,  forecasts,  new products,  software
documentation, unpublished financial statements, budgets, projections, licences,
prices,  costs,  customer lists, supplier lists and any other material marked in
some reasonable manner to indicate it is confidential  which is disclosed to the
other  party  and  also  the  terms  and   conditions  of  this  Agreement  (the
"Confidential  Information") shall be held in confidence and not disclosed,  and
shall be subject to the following terms:
      (A)   any Confidential  Information  disclosed  between the parties hereto
            orally or visually, in order to be subject to this Agreement,  shall
            be so identified  to the  receiving  party at the time of disclosure
            and, if not identified in writing at the time,  confirmed in writing
            within ten (10) days after such oral or visual disclosure;
      (B)   only those of its officers, employees, consultants,  sub-contractors
            and licensees who need to receive the  Confidential  Information  in
            order to carry out the purposes of this Agreement  shall have access
            to such information and such access shall be limited to only so much
            of such  information  as is necessary  for the  particular  officer,
            employee,  consultant,   sub-contractor  and  licensee  to  properly
            perform his or her functions;
      (C)   all officers, employees, consultants,  sub-contractors and licensees
            who shall have access to the Confidential Information shall be under
            written  obligation:  
            (1) to hold in confidence and not disclose all the Confidential
                Information made available to them; and
            (2) to use the Confidential Information only as permitted by the
                party retaining them;
      (D)   all  documents,  drawings,  writings  and  other  embodiments  which
            contain  the  Confidential  Information  shall  be  maintained  in a
            prudent  manner in a secure  fashion  separate  and apart from other
            information in its possession and shall be removed therefrom only as
            needed to carry out the purposes of this Agreement; and
      (E)   all  documents,  drawings,  writings  and other  embodiments  of the
            Confidential  information  the security or  safekeeping of which are
            subject to governmental regulations shall be kept in accordance with
            those regulations.
6.2   Exclusions
      Confidential Information shall not include information that:
      (A)   was at the time of disclosure in the public domain through no fault 
            of the party receiving it;
      (B)   becomes  part of the public  domain  after  disclosure  to the party
            receiving it through no fault of such party;
      (C)   was in the  possession  of the party  receiving it (as  evidenced by
            written  records)  at the time of  disclosure  and was not  acquired
            directly or indirectly  from the other party,  or a third party,  as
            the case may be,  under a continuing  obligation  of  confidence  of
            which the party receiving it was aware;
      (D)   was  received by the party  receiving  it (as  evidenced  by written
            records)  after the time of disclosure  hereunder from a third party
            who did not  require  it to be  held in  confidence  and who did not
            acquire it directly or indirectly from the disclosing  party under a
            continuing  obligation of confidence of which the party receiving it
            was aware;
      (E)   is required by law or the rules of any relevant  Court or securities
            exchange to be  disclosed,  but only to the extent of such  required
            disclosure;   provided,   that  a  party  required  so  to  disclose
            Confidential  Information  shall use all  reasonable  endeavours  to
            notify the  disclosing  party of such  potential  disclosure so that
            such party may seek a protective order or other remedies to maintain
            in confidence any such Confidential Information;
      (F)   was developed  independently  by the receiving party and without the
            use of any  Confidential  Information  received from the  disclosing
            party under this Agreement; or
      (G)   was or is disclosed by the disclosing party to third parties without
            restrictions  on use or  disclosure  comparable  to those  contained
            herein.
<PAGE>
7.    Payments, Reports and Records
7.1   Royalties Payable to NCTI
      Royalties  payable  to NCTI shall be due and  payable  in U.S.  dollars in
immediately available New York, New York funds within forty-five (45) days after
the last  business  day of each  March,  June,  September  and  December of each
calendar year during the term of this  Agreement.  If requested by NCTI,  Verity
shall direct its chartered  accountants at Verity's expense to provide NCTI with
a certified  written  royalty  report (the  "Verity  Royalty  Report")  for each
calendar  year of  this  Agreement  within  sixty  (60)  days of the end of each
calendar year of this  Agreement.  Such Verity Royalty Reports shall be prepared
in  accordance  with  the  standard  reporting   procedures  of  such  chartered
accountants  applied in a consistent  manner.  A similar  Verity  Royalty Report
shall be rendered and royalty payment shall be made within sixty (60) days after
termination of this Agreement.
7.2   Royalties Payable to NXT
      Royalties  payable  to NXT shall be due and  payable  in U.S.  dollars  in
immediately available New York, New York funds within forty-five (45) days after
the last  business  day of each  March,  June,  September  and  December of each
calendar year during the term of this Agreement. If requested by NXT, NCTI shall
direct its independent certified public accountants at NCTI's expense to provide
NXT with a certified written royalty report (the "NCTI Royalty Report") for each
calendar  year of  this  Agreement  within  sixty  (60)  days of the end of each
calendar year of this Agreement.  Such NCTI Royalty Reports shall be prepared in
accordance with the standard reporting procedures of such independent  certified
public accountants applied in a consistent manner. A similar NCTI Royalty Report
shall be rendered and royalty payment shall be made within sixty (60) days after
termination of this Agreement.

8.    Term
8.1 The term of this  Agreement  shall begin with effect from the Effective Date
and shall expire immediately upon:
      (A)   with  respect  to rights  granted  under any patent  hereunder,  the
            expiration of that patent under applicable law;
      (B)   with respect to the other rights granted to Verity  hereunder,  upon
            the  expiration  of the last to expire of the Licensed NCTI Patents;
            and
      (C)   with respect to the other rights granted to NCTI hereunder, upon the
            expiration of the last to expire of the Licensed NXT Patents.
8.2 Other than as set out in  articles  8.1 and 9, this  Agreement  shall not be
terminable by either party unilaterally and shall not terminate automatically.



<PAGE>


9.    Termination
9.1   Cardinal Breach
      NXT shall have the right to terminate the NXT Technology Licence,  without
prejudice to the  continuation of the NCTI  Technology  Licence (with respect to
the rights granted to Verity, the royalties and the other obligations imposed on
Verity), for any reason which constitutes Cardinal Breach and which:
      (A)   cannot be remedied by NCTI; or
      (B)   where  capable of remedy by NCTI,  is not remedied by NCTI within 30
            days of receiving written notice from NXT.
9.2 The termination in article 9.1 shall be of immediate  effect upon NXT giving
written notice to NCTI.
9.3   Following termination under article 9.1:
      (A)   US$3,000,000  (being for the purposes of this  Agreement  the deemed
            cash equivalent of the Premium Shares at the date of this Agreement)
            less the Premium Reduction, shall be paid to Verity within 14 days;
      (B)   the NXT  Technology  Licence shall be terminated in accordance  with
            the   provisions  of  article  10  amended  to  apply  only  to  the
            termination of the NXT Technology Licence.
9.4 If NCTI fails to make  payment as  required by article  9.3(A),  then Verity
shall be entitled to register the  transfer of  ownership  of the Licensed  NCTI
Patents  under the terms of the  Security  Deed.  This  right  shall be  without
prejudice to Verity's rights, whether under this Agreement or otherwise,  and to
its  general  right to record at any time the  Security  Deed with the US Patent
Office and to file a UCC1 Financing Statement.  Upon lapse of the Security Deed,
Verity  shall be  obliged to take all  reasonable  steps to cancel or remove the
Security Deed at the US Patent Office.
      Insolvency
9.5 Any party may terminate its licence under this  Agreement to the other party
(the "Insolvent  Party") at any time,  without  prejudice to the continuation of
the licence under this Agreement from the Insolvent  Party,  where the Insolvent
Party becomes insolvent,  is adjudicated bankrupt or compounds with or makes any
arrangement  with  or  makes  any  general  assignment  for the  benefit  of its
creditors  or enters  into  liquidation,  whether  compulsorily  or  voluntarily
(except for the purposes of a bona fide reconstruction or amalgamation) or has a
receiver,  administrative  receiver or  administrator  (or the equivalent  under
United States or other relevant local  bankruptcy  law) appointed over the whole
or any part of its  undertaking  or  assets or a  similar  occurrence  under any
jurisdiction  affects the other party or if the other party  ceases or threatens
to cease or makes any material  change in its business.  
9.6 The termination of the NCTI Technology Licence or the NXT Technology Licence
in article  9.5 shall be of  immediate  effect  upon a party  (the  "Terminating
Party") giving written notice to the Insolvent Party. 
9.7 Following  termination under article 9.6:
      (A)   the licence  granted to the Insolvent Party under articles 2.1 - 2.4
            or  under  articles  2.5  -  2.6  shall  immediately   terminate  in
            accordance  with the  provisions of article 10 amended to apply only
            to the  termination of the licence  granted to the Insolvent  Party;
            and
      (B)   if NCTI is the Insolvent Party, US$3,000,000 (being for the purposes
            of this  Agreement  the deemed cash  equivalent of the Premium) less
            the Premium Reduction, shall be paid to Verity within 14 days.
9.8 If NCTI fails to make payment as required by article 9.7(B),  then NXT shall
be entitled to register the  transfer of ownership of the Licensed  NCTI Patents
under the terms of the Security Deed.  This right shall be without  prejudice to
Verity's rights,  whether under this Agreement or otherwise,  and to its general
right to record at any time the Security  Deed with the US Patent  Office and to
file a UCC1 Financing  Statement.  Upon lapse of the Security Deed, Verity shall
be obliged to take all reasonable steps to cancel or remove the Security Deed at
the US Patent Office.
      Infringement Proceedings
9.9 If  NCTI  or any  of  its  Affiliates  or  licensees  commence  or  maintain
infringement proceedings against Verity or any of its Affiliates or licensees as
regards  products  covered by or embodying  the Licensed NXT Patents  and/or the
Licensed NXT Technology then:
      (A)   if a plaintiff to such  infringement  proceedings  is NCTI or one of
            its  Affiliates,  NXT  shall  have the  right to  terminate  the NXT
            Technology  Licence which shall be terminated in accordance with the
            provisions of article 10 amended to apply only to the termination of
            the NXT Technology Licence;
      (B)   if a plaintiff  to such  infringement  proceedings  is a licensee of
            NCTI,  then in respect of that licensee NCTI shall be obliged within
            30 days to either:  
            (1) procure that such licensee of NCTI withdraws such proceedings;
                or
            (2) terminate such sub-licence with immediate effect. 
<PAGE>
9.10 If  Verity or any of its  Affiliates  or  licensees  commence  or  maintain
infringement  proceedings  against NCTI or any of its Affiliates or licensees as
regards  products  covered by or embodying the Licensed NCTI Patents  and/or the
Licensed NCTI Technology then:
      (A)   if a plaintiff to such infringement  proceedings is Verity or any of
            its  Affiliates,  NCTI  shall have the right to  terminate  the NCTI
            Technology  Licence which shall be terminated in accordance with the
            provisions of article 10 amended to apply only to the termination of
            the NCTI Technology Licence;
      (B)   if a plaintiff  to such  infringement  proceedings  is a licensee of
            Verity,  then in respect of that  licensee  Verity  shall be obliged
            within 30 days to either:  
            (1) procure that such  licensee of Verity withdraws such
                proceedings; or
            (2) terminate such sub-licence with immediate effect.

10.   Effect of Termination
10.1  Except as otherwise expressly provided herein, on termination of this 
Agreement:
      (A)   all rights and licences granted pursuant to article 2 shall 
            immediately terminate; and
      (B)   all  documents,  drawings,  writings  and other  embodiments  of the
            Confidential  Information,  as well as those  produced,  created  or
            derived from the  Confidential  Information  which  incorporate  the
            Confidential  Information  and all copies  thereof shall be returned
            promptly to the disclosing party of this Agreement without prejudice
            to the continuation of the obligations under article 6.
10.2 After termination of this Agreement,  NCTI and all its licensees under this
Agreement and Verity and all its licensees  under this Agreement may continue to
sell Licensed Products manufactured before the date of termination and, if their
stock of Licensed Products are insufficient to fulfil orders accepted before the
date of  termination,  they may  manufacture  sufficient  quantities of Licensed
Products to fulfil such order, provided that:
      (A)   such Licensed Products are manufactured within 6 months of 
            termination of this Agreement; and
      (B)   any applicable  royalties are paid in accordance  with article 4. 
10.3 Notwithstanding the termination of this Agreement, the terms and conditions
of  articles  6 and 7, and the  accrued  rights  of the  parties  shall  survive
termination of this Agreement and shall continue to be applicable and govern the
parties  with  respect  to the  subject  matter  thereof.  
10.4 In the  event of termination all monies due to either party in respect of 
royalty  payments shall be settled within 30 days of the date of termination.

11.   Force Majeure
11.1  In the  event  of  enforced  delay  in the  performance  by any  party  of
obligations  under  this  Agreement  due  to  unforeseeable  causes  beyond  its
reasonable  control  and  without its fault or  negligence,  including,  but not
limited to, acts of God, acts of the government, acts of the other party, fires,
floods,  strikes,  freight  embargoes,  unusually  severe weather,  or delays of
subcontractors  or licensees  due to such causes (an "Event of Force  Majeure"),
the time for performance of such obligations shall be extended for the period of
the  enforced  delay;  provided  that  the  party  seeking  the  benefit  of the
provisions of this paragraph shall,  within ten (10) days after the beginning of
any such enforced delay, have first notified the party to whom the obligation is
owed in writing of the causes and  requested an extension  for the period of the
enforced delay and shall use all  reasonable  endeavours to minimize the effects
of any Event of Force Majeure.

12.   Applicable Law
12.1 The terms and  conditions  of this  Agreement and the  performance  thereof
shall be governed by and construed in accordance with English law.

13.   Conduct in Relation to Licensed Patents and Technology
13.1 None of the parties  shall do,  procure or omit to do, or assist  others to
do, procure or omit to do,  anything that diminishes the validity or subsistence
of another  party's  licensed  patents or licensed  technology  nor the relevant
party's  ownership  thereof.  However,  neither this article nor anything in the
Agreement  shall  prevent  any party from  challenging  or  assisting  others to
challenge the ownership,  validity,  or subsistence of the said licensed patents
and technologies.  
13.2 Further,  none of the parties nor their Affiliates shall publicly do or say
anything  which is  detrimental  to or otherwise  diminishes  the  reputation or
goodwill of the other parties or which  challenges the validity,  subsistence or
value of the Licensed NXT Patents or any other related future NXT patents or the
Licensed NXT Technology.  Further,  neither of the parties nor their  Affiliates
shall assist third parties to do the same.
<PAGE>
14.   Dispute Resolution
14.1 The  parties  shall meet as soon as  possible  to discuss and to attempt to
resolve all matters not  specifically  provided for in the  Agreement  and which
requires a decision including all differences,  disputes or disagreements  which
may arise out of or in connection with this Agreement. If the parties are unable
to resolve any such matter or dispute  then it shall be referred to the Chairman
of NXT and the Chairman (or  equivalent  officer) of NCTI, who shall meet within
five days of being  requested to do so and in good faith  attempt to resolve the
matter of dispute.  
14.2 The  parties  agree to refer any matter or dispute  which is not able to be
resolved pursuant to article 14.1 to the Centre for Dispute Resolution  ("CEDR")
in London,  England in an attempt to settle the same in good faith by  Alternate
Dispute Resolution ("ADR").
14.3  Neither  party shall be deemed to be  precluded  from taking such  interim
formal steps as may be  considered  necessary  to protect such party's  position
while the procedures referred to in articles 14.1 and 14.2 are pursued.
14.4 In the event  that the  matter  remains  unresolved  by such ADR  procedure
within thirty days of commencement of such procedure,  then the parties shall be
at liberty to take such other Proceedings (as defined below) as they think fit.
14.5 Except as provided for in articles 14.1, 14.2, and 14.3, in relation to any
legal action or proceedings  to enforce this  Agreement  (including the licences
granted   herein)  or  arising   out  of  or  in   connection   this   Agreement
("Proceedings"),  NCTI irrevocably submits to the exclusive  jurisdiction of the
English  Courts and waives any  objection to  Proceedings  in such Courts on the
grounds of venue or on the  grounds  that  Proceedings  have been  brought in an
inappropriate  forum.  This article  operates for the sole benefit of Verity and
NXT who shall retain the right to take Proceedings in any other jurisdiction.

15.   Announcements
15.1 Except for any disclosure which may be required by law or by any securities
exchange  or  regulatory  or  governmental  body  having  jurisdiction  over it,
wherever situated (and including, without limitation, the London Stock Exchange,
the Panel on Takeovers and Mergers,  the Serious Fraud Office and the Securities
Exchange  Commission),  and whether or not the requirement has the force of law,
neither  party may use the other's name or disclose the terms of this  Agreement
without  the  consent  of the other,  which  consent  shall not be  unreasonably
withheld or delayed.


16.   Severability
16.1 If any part of this  Agreement for any reason shall be declared  invalid or
unenforceable,  such decision shall not affect the validity or enforceability of
any remaining  portion,  which shall remain in full force and effect;  provided,
however,  that in the event a part of this Agreement is declared invalid and the
invalidity or enforceability of such part has the effect of materially  altering
the obligations of any party under this Agreement,  the parties agree,  promptly
upon such  declaration  being  made,  to  negotiate  in good faith to amend this
Agreement  so as to put such  party in a position  substantially  similar to the
position such party was in prior to such declaration.

17.   Rights of Assignment; Successors and Assigns
17.1 None of the parties  may assign any of their  rights  under this  Agreement
without the prior written  consent of the other parties (not to be  unreasonably
withheld or delayed).  However, NCTI may assign its rights and obligations under
this Agreement to an Affiliate  (which for the purpose of this article shall not
include OnActive) upon giving NXT 30 days' written notice.  Further,  Verity may
assign its rights and  obligations  under this  Agreement to an  Affiliate  upon
giving NCTI 30 days' written notice.
<PAGE>
18.   Notices
18.1 Any notices  under this  Agreement  shall be in writing and shall be deemed
delivered  if delivered  by personal  service,  or sent by fax or by first class
registered  or certified  mail,  or same day or overnight  courier  service with
postage  or  charges  prepaid.   Unless  subsequently  notified  in  writing  in
accordance  with this  article by the other party,  any notice or  communication
hereunder shall be addressed to NCTI as follows:
to NCTI as follows:
      Michael J. Parrella
      President
      Noise Cancellation Technologies, Inc.
      1025 West Nursery Road
      Linthicum, Maryland 21090
      Fax No: 001 - (410) 636-5989

to Verity or NXT as follows:

      Farad Azima
      Chairman
      Verity Group plc/New Transducers Limited
      Stonehill
      Huntingdon PE18 6ED
      England
      Fax No: (011-44) 1480-432777




19.   Taxes
19.1 Each  party  shall be  responsible  for any  sales,  use,  occupational  or
privilege  taxes,   duties,  fees  or  other  similar  charges  imposed  by  any
governmental  authority  in  connection  with  the  manufacture,   sale,  lease,
distribution,  use or other disposition by it of products or the exercise of any
other rights under the licence  granted to it hereunder.  Subject to sub-article
19.2 below,  any other taxes,  including  income or  withholding  taxes based on
royalties  and  other  payments  received  by  a  party  hereto,  shall  be  the
responsibility of that party. 
19.2 In the  event  that the  Inland  Revenue  raise  an  assessment  on  Verity
asserting that tax should properly have been withheld from the payment  effected
by the issue of the Premium  Shares to NCTI,  Verity  shall  notify NCTI of such
assessment  and NCTI  shall pay to Verity in  cleared  funds the  amount of such
assessment  (including  any element of interest or  penalties)  within 5 days of
receiving  such  notice,  or 5 days  prior  to the date for  payment  by  Verity
specified in such assessment, whichever is the later.

20.   Maintenance and Defence of Licensed Patents
      NCTI Obligations
20.1  Throughout  the term of this  Agreement,  NCTI shall maintain in force the
Licensed NCTI Patents. In this connection,  NCTI shall promptly pay all costs of
any  and  all  continuations,   continuations-in-part,   divisions,  extensions,
reissues, re- examinations, or renewals of the Licensed NCTI Patents, including,
without limitation, the costs and expenses of any and all attorneys,  experts or
other professionals  engaged in connection with any of the foregoing.  At NCTI's
expense,  Verity  shall  comply  with all  reasonable  requests of NCTI aimed at
maintaining  in force  the  Licensed  NCTI  Patents.  
20.2 Where an actual or threatened  infringement of the Licensed NCTI Patents or
unauthorised disclosure or use of the Licensed NCTI Technology (collectively the
"Infringement")  falls or  appears  to fall  wholly or partly  within the Verity
Fields,  then the party who becomes  aware of the  Infringement  shall  promptly
report  the same to the  others.  If the  Infringement  appears  to NCTI to fall
solely  within the Verity  Fields,  then NCTI shall assist  Verity in any action
which Verity wishes to take in relation to the Infringement, but only by lending
its name to such action (subject to Verity fully  indemnifying  NCTI against all
costs,  damages and other liabilities  arising out of or in connection with such
action) and by  providing  copies of all relevant  files in its custody,  power,
possession  or control.  Any  further  assistance  required  by Verity  shall be
subject  to  agreement  between  the  parties.  Verity  shall,  subject  to such
indemnity,  be  entitled as against  NCTI to retain all costs,  damages and sums
awarded or agreed to be paid to it in connection with such action and shall have
sole conduct of such action.  Verity shall however  regularly inform NCTI of any
significant developments of such action and shall not consent to any order as to
the  amendment or validity of the Licensed  NCTI  Patents  without  NCTI's prior
written consent.
<PAGE>
      NXT Obligations
20.3  Throughout  the term of this  Agreement,  NXT shall  maintain in force the
Licensed NXT Patents.  In this  connection,  NXT shall promptly pay all costs of
any  and  all  continuations,   continuations-in-part,   divisions,  extensions,
reissues, re- examinations,  or renewals of the Licensed NXT Patents, including,
without limitation, the costs and expenses of any and all attorneys,  experts or
other  professionals  engaged in connection with any of the foregoing.  At NXT's
expense,  NCTI  shall  comply  with  all  reasonable  requests  of NXT  aimed at
maintaining  in  force  the  Licensed  NXT  Patents.  
20.4 Where an actual or threatened  infringement  of the Licensed NXT Patents or
unauthorised disclosure or use of the Licensed NXT Technology  (collectively the
"Infringement")  falls or  appears  to fall  wholly  or partly  within  the NCTI
Fields,  then the party who becomes  aware of the  Infringement  shall  promptly
report the same to the others. If the Infringement appears to NXT to fall solely
within the NCTI  Fields,  then NXT shall  assist  NCTI in any action  which NCTI
wishes to take in relation to the Infringement,  but only by lending its name to
such action (subject to NCTI fully  indemnifying NXT against all costs,  damages
and other  liabilities  arising out of or in connection with such action) and by
providing  copies of all relevant  files in its custody,  power,  possession  or
control.  Any further assistance  required by NCTI shall be subject to agreement
between the  parties.  NCTI  shall,  subject to such  indemnity,  be entitled as
against NXT to retain all costs,  damages and sums  awarded or agreed to be paid
to it in connection with such action and shall have sole conduct of such action.
NCTI shall however regularly inform NXT of any significant  developments of such
action and shall not consent to any order as to the amendment or validity of the
Licensed NXT Patents without NXT's prior written consent.

21.   Warranties
21.1  Each of the parties represents and warrants to the others that:
      (A)   it has the right,  power and authority to enter into this  Agreement
            and to grant the licenses and other rights contained herein;
      (B)   it will not breach or be in violation of any agreement,  licence, or
            grant  made with or to any other  party by virtue of  entering  into
            this Agreement:
      (C)   so far as it is aware the patents licensed by it do not infringe any
            other patent issued prior to the date hereof.
21.2 NCTI  warrants  that the patents  listed in Schedule A  constitute  all the
patents  and patent  applications  (including  unpublished  applications)  filed
before 31 December 1996 of which NCTI or its Affiliates is the beneficial  owner
or  registered  proprietor or applicant or in respect of which it is a licensee.
NXT warrants  that the patents  listed in Schedule B constitute  all the patents
and patent  applications  (including  unpublished  applications) filed before 31
December 1996 of which it is the  beneficial  owner or registered  proprietor or
applicant or in respect of which it is a licensee.

22.   Disclaimer
22.1  EXCEPT AS SPECIFICALLY SET FORTH IN THIS AGREEMENT, NCTI HEREBY DISCLAIMS:
      (A)   ANY EXPRESS OR IMPLIED WARRANTY OF THE ACCURACY, RELIABILITY, 
            TECHNOLOGICAL OR COMMERCIAL  VALUE,   COMPREHENSIVENESS  OR  
            MERCHANTABILITY  OF  THE LICENSED NCTI PATENTS, THE LICENSED NCTI 
            TECHNOLOGY, OR THE PRODUCTS INCORPORATING,   BASED  UPON  OR  
            DERIVED   FROM  SAID   PATENTS  OR TECHNOLOGY,   OR  THEIR  
            SUITABILITY  OR  FITNESS  FOR  ANY  PURPOSE WHATSOEVER;
      (B)   ALL OTHER WARRANTIES OR WHATEVER NATURE, EXPRESS OR IMPLIED; AND
      (C)   ALL LIABILITY FOR ANY LOSS OR DAMAGE RESULTING, DIRECTLY OR 
            INDIRECTLY, FROM THE USE OF THE LICENSED NCTI PATENTS,  THE 
            LICENSED NCTI TECHNOLOGY, OR THE PRODUCTS INCORPORATING, BASED ON 
            OR DERIVED FROM SAID PATENTS OR TECHNOLOGY.
WITHOUT  LIMITING THE  GENERALITY OF THE  FOREGOING,  THIS  DISCLAIMER  EMBRACES
CONSEQUENTIAL  DAMAGES,  LOSS OF PROFITS OR GOOD WILL,  EXPENSES FOR DOWNTIME OR
FOR  MAKING  UP  DOWNTIME,  DAMAGES  FOR WHICH  LICENSEE  MAY BE LIABLE TO OTHER
PERSONS,  DAMAGES TO  PROPERTY.  
22.2 EXCEPT AS  SPECIFICALLY  SET FORTH IN THIS AGREEMENT, VERITY AND NXT 
HEREBY DISCLAIM:
      (A)   ANY  EXPRESS  OR  IMPLIED  WARRANTY  OF THE  ACCURACY,  RELIABILITY,
            TECHNOLOGICAL   OR   COMMERCIAL    VALUE,    COMPREHENSIVENESS    OR
            MERCHANTABILITY  OF THE  LICENSED  NXT  PATENTS,  THE  LICENSED  NXT
            TECHNOLOGY,  OR THE  PRODUCTS  INCORPORATING,  BASED UPON OR DERIVED
            FROM SAID PATENTS OR TECHNOLOGY, OR THEIR SUITABILITY OR FITNESS FOR
            ANY PURPOSE WHATSOEVER;
      (B)   ALL OTHER WARRANTIES OR WHATEVER NATURE, EXPRESS OR IMPLIED; AND
      (C)   ALL LIABILITY FOR ANY LOSS OR DAMAGE RESULTING, DIRECTLY OR 
            INDIRECTLY, FROM THE USE OF THE LICENSED NXT PATENTS, THE LICENSED 
            NXT TECHNOLOGY, OR THE PRODUCTS INCORPORATING, BASED ON OR DERIVED 
            FROM SAID PATENTS OR TECHNOLOGY.
      WITHOUT LIMITING THE GENERALITY OF THE FOREGOING, THIS DISCLAIMER EMBRACES
CONSEQUENTIAL  DAMAGES,  LOSS OF PROFITS OR GOOD WILL,  EXPENSES FOR DOWNTIME OR
FOR  MAKING  UP  DOWNTIME,  DAMAGES  FOR WHICH  LICENSEE  MAY BE LIABLE TO OTHER
PERSONS,  DAMAGES TO PROPERTY.  
<PAGE>
22.3 Nothing in this article 22 shall exclude,  restrict or modify any condition
or warranty  implied in this  Agreement  by law where to do so would  render any
part of this article void.

23.   Trade Marks
23.1 Nothing in this Agreement shall entitle any of the parties to use any trade
or service mark  (including  logos,  devices and signs) which is used by another
party or its Affiliates (the "Marks"). Further, none of the parties shall use or
apply for  registration  as a trade mark or business  name of any word or words,
device,  logo or sign which is  identical or  confusingly  similar to any of the
Marks.

24.   No Agency and No Partnership
24.1  Save as  otherwise  expressly  provided  for in this  Agreement  or unless
otherwise agreed between the parties in writing, none of the parties shall:
      (A) make  purchases or sales or incur any  liabilities  whatsoever on 
          behalf of any of the others; or
      (B) pledge a credit of any of the others; or (C) hold itself out as acting
          as agent for any of the others.
24.2  Nothing  in this  Agreement  is  intended  to or  shall  give  rise to any
relationship  of  partnership  or profit  sharing in the  nature of  partnership
between the parties.

25.   Scope of the Agreement and General Obligations
25.1 This Agreement  constitutes the entire  agreement  between the parties with
respect to the subject  matter hereof and  supersedes  all prior oral or written
agreements or  understandings  of the parties with regard to the subject  matter
hereof including,  without limitation, the Cross Licence between NXT and NCTI of
28 March 1997. No interpretation, change, termination or waiver of any provision
hereof shall be binding upon a party unless in writing and executed by the other
party.  No   modification,   waiver,   termination,   recession,   discharge  or
cancellation  of any right or claim under this Agreement  shall affect the right
of any party  hereto to enforce  any other claim or right  hereunder.  
25.2 NCTI  shall  deliver  to Verity  within  14 days of the  execution  of this
Agreement the duly signed Letter of Opinion and Chairman's Letter.

26.   Security Deed
26.1 Upon signing this Agreement, the parties shall enter into the Security Deed
in its agreed form.

27.   Equity Options
27.1  (A)   On the date  hereof,  NCTI  shall  enter  into  the NCTI  Option
            Agreement  and the  Registration  Rights  Agreement,  and  thereupon
            Verity shall enter into the Registration Rights Agreement; and
      (B)   On the date  hereof,  NCTI and  Verity  shall  enter into the Verity
            Option  Amendment  Agreement  which  provides,  inter alia, that the
            Verity  Option  Agreement  shall lapse on 30  September  1997 if the
            consent  and  approval  of  NCTI's   shareholders  to  increase  the
            authorised  share  capital  of NCTI to  permit  exercise  in full by
            Verity of the option pursuant to the NCTI Option  Agreement (as such
            consent and approval referred to in the NCTI Option Agreement) shall
            not have been obtained by 30 September 1997.

28.   Novation
28.1 At the request of Verity,  the  parties to this  Agreement  shall  promptly
enter  into a  novation  agreement  in the  form set out in  Schedule  E to this
Agreement.

<PAGE>
29.   Recording of Formal Licence
29.1  On execution of this Agreement, the parties shall execute:
      (A)   a short form  agreement in the form set out in Schedule F for filing
            with the  Registrar  of  Companies  pursuant  to  Section  88 of the
            Companies Act 1985;
      (B)   a formal  exclusive  licence in respect of the Licensed NCTI Patents
            in the form set out in Schedule G for  registration at the UK Patent
            Office (and in  substantially  the same form for registration at all
            other relevant patent offices); and
      (C)   documents substantially in the same form as above for use by NCTI in
            the United States.

30.   Stamp Duty and Legal Costs
30.1 All  stamp  duty  payable  in  relation  to this  Agreement  and any  other
agreement  executed pursuant to it shall be paid by NCTI. 
30.2 Within 30 days of being  presented with paid and receipted  invoices,  NCTI
shall pay 50% of  Verity's  and NXT's  external  legal  costs and  disbursements
incurred in  negotiating,  preparing and drafting all the  documents  associated
with this Agreement including prior versions of such documents.

IN WITNESS WHEREOF the parties have caused this Agreement to be executed the day
and year first before written.

VERITY GROUP plc
/s/ FARAD AZIMA
- --------------------
By:   Farad Azima
Title:      Director
Date: 15 April 1997


NEW TRANSDUCERS LIMITED
/s/ PETER THOMAS
- --------------------
By:   Peter Thomas
Title:      Director
Date: 15 April 1997


NOISE CANCELLATION TECHNOLOGIES, INC.
/s/ MICHAEL J. PARRELLA
- --------------------
By:   Michael J. Parrella
Title:      President
Date: April 15, 1997



<PAGE>


                                                                    Schedule A
                           NCTI INTELLECTUAL PROPERTY
VIRGINIA POLYTECHNIC INSTITUTE
Patents
US 4,715,559    Issued  December 29, 1987,  entitled  "Apparatus  and
                Method  for  Global  Noise  Reduction".  Describes  a method for
                quieting  within an enclosed space by  anti-vibrating  the walls
                with piezo-electric devices. It formed the basis for NCTI's work
                on active panels.
US 5,335,417    Issued October 11, 1992,  entitled "Active Control of
                Aircraft  Engine  Inlet Noise Using  Compact  Sound  Sources and
                Distributed  Error Sensors".  Part of this patent  describes the
                use of piezo  actuators  bonded to  curved  panels as a means of
                generating  sound.  The panel  geometry  is chosen to  emphasize
                particular  frequencies.  This  technique is used in transformer
                quieting.
US 5,515,444    Issued May 7, 1996.  Continuation of US 5,335,417,  in
                which the curved panel is dynamically  tuned to maintain optimal
                performance.


<PAGE>


                                                                    Schedule A
                           NCTI INTELLECTUAL PROPERTY
PIEZO TECHNOLOGY
Patents
US 5,473,214    Issued December 5, 1995,  entitled "Low Voltage Bender
                Piezo Actuators". The use of a stack of piezo electric layers to
                produce a vibration actuator. Multiple layers reduce the voltage
                levels  required  to drive the  actuator.  This makes  packaging
                easier and allows cheaper amplifiers to be used.1
Patents Pending
               PCT/xUS94/04553  (filed May 04, 1994) Publication No. W004/27331
               Low Voltage Bender Piezo  Actuators.  The use of a stack of piezo
               electric layers to produce a vibration actuator.  Multiple layers
               reduce the voltage  levels  required to drive the actuator.  This
               makes packaging  easier and allows cheaper  amplifications  to be
               used.
               EPO 94914908.2 (filed May 04, 1994) Publication No. 0698298 Low 
               Voltage Bender Piezo Actuators. The use of a stack of piezo 
               electric layers to produce a  vibration actuator. Multiple 
               layers reduce the voltage levels required to drive the actuator. 
               This makes packaging easier and allows cheaper amplifications to
               be used.

<PAGE>


                                                                    Schedule A
                           NCTI INTELLECTUAL PROPERTY

PIEZO TECHNOLOGY
Patents pending

        (253)    No.  PCT/US95/05720 (filed 09/05/95) Publication No. W095/31805
                 Multimedia  Personal  Computer with Active Noise  Reduction and
                 Piezo Speakers:  US filed May 11, 1994. A piezo patch is bonded
                 to the case of a PC so that the whole case acts as loudspeaker.
                 Active Noise  Reduction and  microphones  are included to fully
                 equip the PC for multimedia applications. EPO 95918420.1 (filed
                 May 09,  1995)  Publication  No.  0760996  Multimedia  Personal
                 Computer  with Active Noise  Reduction  and Piezo  Speakers:  A
                 piezo  patch is  bonded  to the case of a PC so that the  whole
                 case  acts  as   loudspeaker.   Active  Noise   Reduction   and
                 microphones  are included to fully equip the PC for  multimedia
                 applications.
                 US 08/241440
                 Multimedia  Personal  Computer with Active Noise  Reduction and
                 Piezo Speakers:  US filed May 11, 1994. A piezo patch is bonded
                 to the case of a PC so that the whole case acts as loudspeaker.
                 Active Noise  Reduction and  microphones  are included to fully
                 equip the PC for multimedia applications.
        (256)    No. PCT/US95/08131 (filed 29/06/95) Publication No. W096/01547
                 Piezo Speaker and Installation Method for Laptop Personal 
                 Computer and other Multimedia Applications: US filed July 6, 
                 1994. A piezo patch is bonded to the case of a PC to act as a 
                 loudspeaker. Dampening materials and stiffeners to improve the 
                 performance of a piezo loudspeaker. (U.S. application approved 
                 for issue). 
                 EPO 95924733.9 (filed June 29, 1995) Publication No. 0772953
                 Piezo Speaker and Installation Method for Laptop Personal 
                 Computer and other Multimedia Applications:  A piezo patch is 
                 bonded to the case of a PC to act as a loudspeaker. Dampening 
                 materials and stiffeners to improve the performance of a piezo 
                 loudspeaker.
                 US 08/267218
                 Piezo Speaker and Installation Method for Laptop Personal 
                 Computer and other Multimedia Applications: US filed July 6, 
                 1994. A piezo patch is bonded to the case of a PC to act as a 
                 loudspeaker. Dampening materials and stiffeners to improve the 
                 performance of a piezo loudspeaker. (U.S. application approved
                 for issue).

        (260)    US 08/533048
                 Piezo Speaker for Improved  Passenger  Cabin Audio Systems:  US
                 filed September 25, 1995.  Improvements include the addition of
                 combined  constrained   damping/insulation   layer,  integrated
                 electronics and the inclusion of  intermediate  coupling plates
                 to enhance  performance.  This technique is applied to all flat
                 interior  surfaces of a car  interior.  PCT to be advised Piezo
                 Speaker for Improved  Passenger  Cabin Audio Systems:  US filed
                 September  25,  1995.  Improvements  include  the  addition  of
                 combined  constrained   damping/insulation   layer,  integrated
                 electronics and the inclusion of  intermediate  coupling plates
                 to enhance  performance.  This technique is applied to all flat
                 interior surfaces of a car interior.
        (269)    US 08/554049
                 Piezoelectric  Transducers:  US filed  November 6, 1995.  An 
                 extension of (260).  Improved  transducer  coupling  systems 
                 that  significantly  improves piezo performance.
                 PCT to be advised
                 Piezoelectric Transducers: US filed November 6, 1995. An 
                 extension of (260). Improved transducer coupling systems that 
                 significantly improves piezo performance.


<PAGE>


                                                                    Schedule A

                           NCTI INTELLECTUAL PROPERTY

FLAT PANEL TRANSDUCERS
Patents Pending
        (277)    US 08/720163
                 Vehicular  Loudspeaker  System: US filed September 25, 1996. An
                 improved  loudspeaker system for a passenger vehicle such as an
                 automobile.  The system comprises a transducer capable of being
                 excited by applied electric potential and electronic means that
                 is  electrically  connected to the transducer to apply electric
                 potential   thereto.   The  diaphragm  driven  by  the  excited
                 transducer  is  comprised  of the  headliner  of the vehicle or
                 other flat surfaces.
        (400)    No. GB 961 9835.3 (filed 23/09/96)
                 Audio System Using Flat Panel Loudspeakers:  UK filed September
                 23, 1996. A home entertainment system consisting of a plurality
                 of flat  panel  loudspeakers  and  electroacoustics  transducer
                 apparatus having a flatter  frequency  response than previously
                 possible.
        (401)    No. GB 961 9967.4 (filed 25/09/96)
                 Electroacoustics Transducer Arrangement: UK filed September 25,
                 1996. An  electroacoustics  transducer  consisting of two panel
                 membranes.  The phase of the sound  wave  produced  at the rear
                 panel  is set so  that  if  that  wave  is  reflected,  it will
                 constructively  interfere with the wave produced at the forward
                 panel.
        (402)    No. GB 962 1523.1 (filed 16/10/96)
                 A Flat Panel  Loudspeaker  Arrangement and Hands Free Telephone
                 System Using the Same:  UK filed October 16, 1996. A flat panel
                 loudspeaker  arrangement  which can be  attached to the roof or
                 headlining of a vehicle to position the  loudspeaker of a hands
                 free telephone more conveniently.
        (403)    No. GB 962 5315.8 (filed 05/12/96)
                 Electroacoustics  Transducer Arrangement:  UK filed December 5,
                 1996.  (An  extension of 401). An  electroacoustics  transducer
                 consisting of two panel membranes.  The phase of the sound wave
                 produced  at the  rear  panel  is set so that  if that  wave is
                 reflected,  it will  constructively  interfere  with  the  wave
                 produced at the forward panel.  The  constructive  interference
                 effect can also be used to flatten or  equalise  the  frequency
                 response of the system.


<PAGE>


        (404)    No. GB 962 4302.7 (filed 22/11/96)
                 Flat Panel Loudspeaker Arrangement: UK filed November 22, 1996.
                 Involves  the  selection  and   arrangement  of   piezoelectric
                 elements so that the  piezoelectric  elements  provide the flat
                 panel loudspeaker with an equalised frequency response.
        (405)    No. GB 962 6439.5 (filed 20/12/96)
                 A Multiple Panel Electroacoustic  Transducer: UK filed December
                 20, 1996.  An improved  electroacoustic  transducer  comprising
                 multiple  parallel  panel members with an actuator  arrangement
                 for driving the panel members in phase.
        (406)    No. GB 970 0336.2 (filed 09/01/97)
                 Panel Mounting Arrangement for Electroacoustic  Transducer:  UK
                 filed January 9, 1997. An improved  electroacoustic  transducer
                 that isolates  acoustic  vibrations  generated by the front and
                 rear faces of a panel so that they do not interfere.




<PAGE>


                                                                   Schedule A
                          NCTI INTELLECTUAL TECHNOLOGY
LOUDSPEAKER TECHNOLOGY
Patents Pending
        (121)    PCT/US91/02731 Publication No. W092/19080
                 Improvements in and relating to Transmission  Line Loudspeakers
                 Filed April 19, 1991.  The sound wave  radiated  from the front
                 surface  of a  loudspeaker  driver  diaphragm  is  of  opposite
                 polarity  with respect to that  radiated from the back surface.
                 If the two signals  are  directly  combined,  they will tend to
                 cancel one another. An acoustic phase inversion network is used
                 to insure  that the back wave is in phase with the front  wave,
                 and the  combined  signals  are  used to drive  the  inlet of a
                 loudspeaker  transmission line. EPO 91920600.3  Publication No.
                 0580579  Improvements  in and  relating  to  Transmission  Line
                 Loudspeakers Filed April 19, 1991. The sound wave radiated from
                 the front  surface  of a  loudspeaker  driver  diaphragm  is of
                 opposite  polarity  with respect to that radiated from the back
                 surface.  If the two signals are directly  combined,  they will
                 tend to cancel one another. An acoustic phase inversion network
                 is used to insure that the back wave is in phase with the front
                 wave, and the combined signals are used to drive the inlet of a
                 loudspeaker transmission line.
        (149)    No. PCT/US91/07324 Publication No. W093/07729
                 Vacuum Speaker
                 Filed  October  2,  1991.  A speaker  enclosure  with a partial
                 vacuum  behind  the  speaker.  A spring is used to  offset  the
                 static forces.  The result is a smaller  enclosed  volume while
                 maintaining low frequency performance.
        (???)    No. PCT/US92/05771 Publication No. WO94/01979
                 Hydraulic Powered Loudspeaker
                 A  hydraulic  powered   low-damped   loudspeaker   including  a
                 hydraulic  cylinder (21) attached to the cone (22) of a speaker
                 which can be used in a bandpass loudspeaker.






<PAGE>


Patent
UK 2,858,759     Issued  March 11,  1981,  entitled  "Depressing  the
                 Resonant  Frequency of a Suspended Mass".  Described the use of
                 active  control  to  reduce  the  spring  force  constant  of a
                 suspended  mass (e.g. a  loudspeaker  cone) so as to reduce the
                 effective resonant frequency of the structure.
US 3,247,925     Issued  April  26,  1966,  entitled   "Loudspeaker".
                 Described the  improvement  of the  efficiency of low frequency
                 loudspeakers by exciting bending waves in a light weight, stiff
                 panel  which  remains  essentially  stationary,  except for the
                 bending waves.




<PAGE>


                                                                    Schedule A

                          NCTI INTELLECTUAL TECHNOLOGY

NCTI's FURTHER UNDERTAKING
Any  additional  intellectual  property  in  relation  to sound  propagation  or
reproduction whether in existence now or on any future date which is owned by or
licensed to NCTI or any of its Affiliates  shall be deemed to be included in the
definition of Licensed NCTI Technology or Licensed NCTI Patents upon:

      (A)   Verity identifying in writing the intellectual  property  (including
            know how) which is to be included within such definitions; and
      (B)   Verity  agreeing  in  writing  to pay a royalty  in  respect of such
            additional intellectual property under the terms of article 4 to the
            extent  that such  intellectual  property  is licensed or is used in
            Licensed  Products  at the  following  rates:  
            (1) in  the  case  of intellectual property existing on or prior 
                to the date of this Agreement; and
            (2) in the case of intellectual property not existing on the date of
                this Agreement.



<PAGE>


      Confidential
                                                                    Schedule B
Appn. No.                     Date Filed     Short Title
1.    PCT/GB96/02145          02/09/96       Acoustic Device
2.    U.S. 08/707.012                        03/09/96 Acoustic Device
3.    PCT/GB96/02140          02/09/96       Baffle Loaded Loudspeakers
4.    PCT/GB96/02166          02/09/96       Mixed Technology Loudspeaker
5.    PCT/GB96/02167          02/09/96       Inertial Transducer 
                                             (electro-magnetic)
6.    PCT/GB96/02160          02/09/96       Inertial Transducer (piezo)
7.    PCT/GB96/02148          02/09/96       Bender Transducers
8.    PCT/GB96/02162          02/09/96       Loudspeaker with Separate 
                                             Transducers
9.    PCT/GB96/02163          02/09/96       Loudspeaker/Microphone Combination
10.   PCT/GB96/02158          02/09/96       Mixed Technology Loudspeakers
11.   PCT/GB96/02155          02/09/96       Microphone
12.   PCT/GB96/02153          02/09/96       Ceiling Tile
13.   PCT/GB96/02151          02/09/96       Visual Display Unit
14.   PCT/GB96/02142          02/09/96       Laptop Computer
15.   PCT/GB96/02147          02/09/96       Portable CD Player
16.   PCT/GB96/02157          02/09/96       Automotive etc. Applications 
                                             including Seat Shell Loudspeaker 
                                             and Door Mounted and Parcel
                                             Shelf Loudspeakers
17.   PCT/GB96/02164          02/09/96       Keyboard Musical Instrument
18.   PCT/GB96/02159          02/09/96       Vending Machine
19.   PCT/GB96/02165          02/09/96       Notice Board
20.   PCT/GB96/02146          02/09/96       Packaging
21.   PCT/GB96/02144          02/09/96       Greetings Card
22.   PCT/GB96/02137          02/09/96       Projection Screen Loudspeaker



<PAGE>


                                                                    Schedule C

                                    Royalties


a)      Royalties paid by NCTI to NXT
                o 2.5% of Net Sales Revenues
                o 5% of Net Licensing Revenues
b)      Royalties paid by Verity to NCTI
                o 2.5% of Net Sales Revenues
                o 5% of Net Licensing Revenues
NB      The Onactive  subsidiary  of NCTI is  organized  as a limited  liability
        company.  NCTI owns 42.5% of the company. NCTI will treat the profits of
        Onactive  attributable to NCTI as Net Licensing  Revenue for computation
        of the royalty payments due to NXT.
NB      For the purposes of royalty  calculation,  Net Licensing  Revenues shall
        include  revenues  received (as from the Effective  Date) by NCTI or its
        Affiliates  and NXT or its  Affiliates  from their  existing  respective
        licensees of the Licensed NCTI Patents and the Licensed NXT Patents.



<PAGE>


                                                                    Schedule D

                                   Affiliates

                             Onactive L.L.C. - 42.5%



<PAGE>


                                                                    Schedule E
                               Novation Agreement

THIS DEED is dated Fifteen April 1997 and made
- ---------
BETWEEN:
- --------
(1)   Verity Group plc a public company  incorporated in England and Wales under
      number 514718 whose  registered  office is at Stonehill,  Huntingdon  PE18
      6ED, England ("Verity");
(2)   New Transducers  Limited a private company limited by shares  incorporated
      in England and Wales under number  3135528 whose  registered  office is at
      Stonehill, Huntingdon PE18 6ED, England ("NXT"); and
(3)   Noise Cancellation  Technologies,  Inc a Delaware corporation with offices
      at 1025 West Nursery Road, Linthicum, Maryland 21090, USA ("NCTI").
WHEREAS:
(A)   This novation  agreement is entered into pursuant to the request of Verity
      under  clause 28 of a cross  licence of April 1997  between the parties to
      this Agreement ("the New Cross Licence").
(B)   Verity wishes to be released and discharged from the New Cross Licence and
      NCTI has agreed to release  and  discharge  Verity upon the terms of NXT's
      undertaking  to perform the New Cross Licence and to be bound by the terms
      of the New Cross Licence in place of Verity.
NOW IT IS HEREBY AGREED as follows:

1.    Novation
1.1   In consideration of:
      (A)   NXT assuming the duties and  obligations of Verity in favour of NCTI
            under the New Cross Licence; and
      (B)   NXT undertaking to pay to Verity the sum of  US$3,000,000  within 14
            days of receiving a written demand from Verity
      NCTI and Verity  hereby  irrevocably  and  unconditionally  consent to the
      substitution  of NXT for  Verity in the New Cross  Licence  and  expressly
      agree  that all  rights  and  liabilities  of  Verity  under the New Cross
      Licence  shall be deemed to be vested,  with  effect  from the date hereof
      ("Completion") in NXT for all purposes.
1.2   In  consideration  of NXT assuming the covenants and obligations of Verity
      in favour of NCTI under the New Cross Licence, NCTI hereby irrevocably and
      unconditionally  waives and releases Verity from all claims,  obligations,
      liabilities,  costs and demands  whatsoever arising directly or indirectly
      in respect of the New Cross Licence and hereby  confirms that there are no
      obligations of Verity outstanding at the date hereof in respect of the New
      Cross Licence.
1.3   NXT hereby  covenants,  undertakes,  confirms,  accepts and agrees that it
      shall  perform and be bound by the terms of the New Cross  Licence as from
      Completion  in every way as if it were a party in  substitution  of Verity
      and undertakes all obligations and liabilities arising thereunder,  except
      the obligation to allot shares of Verity (which has been performed).
2.    Execution
2.1   This  Agreement  may be  executed  in any  number of  counterparts  by the
      several  parties  hereto on separate  counterparts,  each of which when so
      executed  and  delivered  shall be an original,  but all the  counterparts
      shall together constitute one and the same agreement.
3.    Jurisdiction
3.1   This Agreement shall be governed by, and construed in accordance with, the
      laws of  England  and the  parties  irrevocably  submit  to the  exclusive
      jurisdiction of the English Courts.

IN WITNESS the hands of the duly authorised  representatives  of the parties the
day and year first above written.



EXECUTED as a Deed            )     ___________________________
by VERITY GROUP plc           )     Director
acting by FARAD AZIMA         )
a director and PETER THOMS    )     ___________________________
a director/the secretary      )     Director/Secretary


EXECUTED as a Deed             )    ___________________________
by NEW TRANSDUCERS             )    Director
LIMITED acting by              )
FARAD AZIMA a director and     )    ___________________________
PETER THOMS                    )    Director/Secretary
a director/the secretary       )


EXECUTED BY MICHAEL            )
PARRELLA duly authorised       )    ___________________________
for and on behalf of NOISE     )    Director
CANCELLATION                   )
TECHNOLOGIES, INC and          )
thereby executed by NOISE      )
CANCELLATION                   )
TECHNOLOGIES, INC as its       )    ___________________________
deed in the presence of:       )
<PAGE>


                                                                    Schedule F
                              Short Form Agreement

THIS    AGREEMENT is made the 15th day of April 1997
- -----------------
BETWEEN:
- --------
(1)   Noise  Cancellation  Technologies,  Inc. a Delaware  corporation  with 
      offices at 1025 West Nursery Road, Linthicum, Maryland 21090, USA 
      (the "Licensor");
(2)   Verity Group plc, a public company incorporated in England and Wales under
      number 514718 with its  registered  office at Stonehill,  Huntingdon  PE18
      6ED, England ("Verity"); and
(3)   New Transducers  Limited, a private company limited by shares incorporated
      in England  and Wales  under No.  3135528  whose  registered  office is at
      Stonehill, Huntingdon, PE18 6ED, England ("NXT").
THE PARTIES AGREE THAT:

1.    In this Agreement the following expressions shall have the following 
meanings:
1.1   "US Patents"                        means, inter alia, those patent and
                                          patent   applications  listed  in  the
                                          Schedule to this  Agreement  which are
                                          filed or  registered  with the  United
                                          States Patent Office.
1.2   "Non US Patents"                    means, inter alia, those patents and
                                          patent applications listed in the
                                          Schedule to this Agreement which are
                                          not US Patents.
2.   Pursuant to a cross licence agreement of even date made between the parties
     (the  "Agreement"),  in  consideration  of the  allotment  by Verity to the
     Licensor of 3,350,000  ordinary  shares of 5p each in the capital of Verity
     credited as fully paid,  the  Licensor  has granted to Verity an  exclusive
     worldwide  licence for the  exploitation  in the fields of use  relating to
     Consumer audio, Pro-audio,  Multimedia,  Communications handsets, Marketing
     and promotional devices,  Domestic and industrial  appliances,  Multi-Field
     Components and other fields for the propagation  and  reproduction of sound
     (all as  defined  in the  Agreement)  (together  referred  to herein as the
     "Fields of Use") under the US Patents  subject to the terms and  conditions
     of the Agreement.
3.    Further,  pursuant to the Agreement,  in consideration  for the payment of
      royalties in accordance  with the  Agreement,  the Licensor has granted to
      Verity an exclusive  worldwide  licence for  exploitation in the Fields of
      Use under the Non US Patents subject to the terms of the Agreement.
4.    The  Licensor,  Verity and NXT have  entered into this  Agreement  for the
      purposes of filing  details with the  Registrar  of Companies  pursuant to
      Section 88 of the Companies Act 1985.
5.    In the  event of  conflict  between  the terms of the  Agreement  and this
      Agreement,  the terms of the Agreement shall prevail. In particular,  this
      Agreement  shall not extend the licences  granted  under  article 2 of the
      Agreement.
6.    This  Agreement  shall be governed by and  construed in  accordance  with 
      English law.  Each of the parties irrevocably submits to the jurisdiction 
      of the English Courts.

                                    Schedule
                           NCTI INTELLECTUAL PROPERTY
VIRGINIA POLYTECHNIC INSTITUTE
Patents
US              4,715,559  Issued  December 29, 1987,  entitled  "Apparatus  and
                Method  for  Global  Noise  Reduction".  Describes  a method for
                quieting  within an enclosed space by  anti-vibrating  the walls
                with piezo-electric devices. It formed the basis for NCTI's work
                on active panels.
US              5,335,417  Issued October 11, 1992,  entitled "Active Control of
                Aircraft  Engine  Inlet Noise Using  Compact  Sound  Sources and
                Distributed  Error Sensors".  Part of this patent  describes the
                use of piezo  actuators  bonded to  curved  panels as a means of
                generating  sound.  The panel  geometry  is chosen to  emphasize
                particular  frequencies.  This  technique is used in transformer
                quieting.
US              5,515,444 Issued May 7, 1996.  Continuation of US 5,335,417,  in
                which the curved panel is dynamically  tuned to maintain optimal
                performance.

<PAGE>
PIEZO TECHNOLOGY
Patents
US 5,473,214    Issued December 5, 1995,  entitled "Low Voltage Bender
                Piezo Actuators". The use of a stack of piezo electric layers to
                produce a vibration actuator. Multiple layers reduce the voltage
                levels  required  to drive the  actuator.  This makes  packaging
                easier and allows cheaper amplifiers to be used.2
Patents Pending
                PCT/US94/04553 (filed May 04, 1994) Publication No. W004/27331
                Low Voltage Bender Piezo Actuators.  The use of a stack of 
                piezo electric layers to produce a vibration  actuator.  
                Multiple  layers reduce the voltage  levels  required to drive 
                the  actuator.  This makes packaging easier and allows cheaper 
                amplifications to be used.
                EPO 94914908.2 (filed May 04, 1994) Publication No. 0698298
                Low Voltage Bender Piezo Actuators.  The use of a stack of 
                piezo electric layers to produce a vibration  actuator.  
                Multiple  layers reduce the voltage  levels  required to drive 
                the  actuator.  This makes packaging easier and allows cheaper 
                amplifications to be used.

PIEZO TECHNOLOGY
Patents pending
        (253)  No.  PCT/US95/05720  (filed 09/05/95)  Publication No. W095/31805
               Multimedia  Personal  Computer  with Active Noise  Reduction  and
               Piezo Speakers: US filed May 11, 1994. A piezo patch is bonded to
               the  case of a PC so that the  whole  case  acts as  loudspeaker.
               Active  Noise  Reduction  and  microphones  are included to fully
               equip the PC for multimedia applications.
               EPO 95918420.1 (filed May 09, 1995) Publication No. 0760996
               Multimedia Personal Computer with Active Noise Reduction andPiezo
               Speakers: A piezo patch is bonded to the case of a PC so that the
               whole  case  acts as  loudspeaker.  Active  Noise  Reduction  and
               microphones  are  included to fully  equip the PC for  multimedia
               applications.
               US 08/241440
               Multimedia  Personal  Computer  with Active Noise  Reduction and
               Piezo Speakers: US filed May 11, 1994. A piezo patch is bonded to
               the  case of a PC so that the  whole  case  acts as  loudspeaker.
               Active  Noise  Reduction  and  microphones  are included to fully
               equip the PC for multimedia applications.
        (256)  No. PCT/US95/08131 (filed 29/06/95) Publication No. W096/01547
               Piezo Speaker and Installation Method for Laptop Personal 
               Computer and other Multimedia Applications: US filed July 6, 
               1994. A piezo patch is bonded to the case of a PC to act as a 
               loudspeaker. Dampening materials and stiffeners to improve the 
               performance of a piezo loudspeaker. (U.S. application approved 
               for issue).
               EPO 95924733.9 (filed June 29, 1995) Publication No. 0772953
               Piezo Speaker and Installation Method for Laptop Personal 
               Computer and other Multimedia Applications:  A piezo patch is 
               bonded to the case of a PC to act as a loudspeaker. Dampening 
               materials and stiffeners to improve the performance of a piezo
               loudspeaker.
               US 08/267218
               Piezo Speaker and Installation Method for Laptop Personal 
               Computer and other Multimedia Applications: US filed July 6, 
               1994. A piezo patch is bonded to the case of a PC to act as a 
               loudspeaker. Dampening materials and stiffeners to improve the 
               performance of a piezo loudspeaker. (U.S. application approved 
               for issue).
        (260)  US 08/533048
               Piezo  Speaker for Improved  Passenger  Cabin Audio  Systems:  US
               filed  September 25, 1995.  Improvements  include the addition of
               combined   constrained   damping/insulation   layer,   integrated
               electronics and the inclusion of intermediate  coupling plates to
               enhance  performance.  This  technique  is  applied  to all  flat
               interior surfaces of a car interior.
                PCT to be advised
                Piezo Speaker for Improved  Passenger  Cabin Audio  Systems:  US
               filed  September 25, 1995.  Improvements  include the addition of
               combined   constrained   damping/insulation   layer,   integrated
               electronics and the inclusion of intermediate  coupling plates to
               enhance  performance.  This  technique  is  applied  to all  flat
               interior surfaces of a car interior.
        (269)  US 08/554049
               Piezoelectric Transducers: US filed November 6, 1995. An 
               extension of (260). Improved transducer coupling systems that 
               significantly improves piezo performance.
               PCT to be advised
               Piezoelectric Transducers: US filed November 6, 1995. An 
               extension of (260). Improved transducer coupling systems that 
               significantly improves   piezo performance.
<PAGE>
FLAT PANEL TRANSDUCERS
Patents Pending
        (277)   US 08/720163
                Vehicular  Loudspeaker  System:  US filed September 25, 1996. An
                improved  loudspeaker  system for a passenger vehicle such as an
                automobile.  The system comprises a transducer  capable of being
                excited by applied electric  potential and electronic means that
                is  electrically  connected to the  transducer to apply electric
                potential   thereto.   The  diaphragm   driven  by  the  excited
                transducer is comprised of the headliner of the vehicle or other
                flat surfaces.
        (400)  No. GB 961 9835.3 (filed 23/09/96)
               Audio System Using Flat Panel  Loudspeakers:  UK filed  September
               23, 1996. A home  entertainment  system consisting of a plurality
               of  flat  panel  loudspeakers  and  electroacoustics   transducer
               apparatus  having a flatter  frequency  response than  previously
               possible.
        (401)  No. GB 961 9967.4 (filed 25/09/96)
               Electroacoustics  Transducer Arrangement:  UK filed September 25,
               1996.  An  electroacoustics  transducer  consisting  of two panel
               membranes. The phase of the sound wave produced at the rear panel
               is set so that if that wave is reflected,  it will constructively
               interfere with the wave produced at the forward panel.
        (402)  No. GB 962 1523.1 (filed 16/10/96)
               A Flat Panel  Loudspeaker  Arrangement  and Hands Free  Telephone
               System  Using the Same:  UK filed  October 16, 1996. A flat panel
               loudspeaker  arrangement  which  can be  attached  to the roof or
               headlining  of a vehicle to position the  loudspeaker  of a hands
               free telephone more conveniently.


        (403)  No. GB 962 5315.8 (filed 05/12/96)
               Electroacoustics  Transducer  Arrangement:  UK filed  December 5,
               1996.  (An  extension  of 401).  An  electroacoustics  transducer
               consisting  of two panel  membranes.  The phase of the sound wave
               produced  at the  rear  panel  is set so  that  if  that  wave is
               reflected,  it  will  constructively   interfere  with  the  wave
               produced  at the forward  panel.  The  constructive  interference
               effect  can also be used to  flatten or  equalise  the  frequency
               response of the system.
        (404)  No. GB 962 4302.7 (filed 22/11/96)
               Flat Panel Loudspeaker  Arrangement:  UK filed November 22, 1996.
               Involves the selection and arrangement of piezoelectric  elements
               so  that  the  piezoelectric  elements  provide  the  flat  panel
               loudspeaker with an equalised frequency response.
        (405)  No. GB 962 6439.5 (filed 20/12/96)
               A Multiple Panel  Electroacoustic  Transducer:  UK filed December
               20,  1996.  An  improved  electroacoustic  transducer  comprising
               multiple parallel panel members with an actuator  arrangement for
               driving the panel members in phase.
        (406)  No. GB 970 0336.2 (filed 09/01/97)
               Panel Mounting  Arrangement for  Electroacoustic  Transducer:  UK
               filed  January 9, 1997.  An improved  electroacoustic  transducer
               that isolates acoustic vibrations generated by the front and rear
               faces of a panel so that they do not interfere.
<PAGE>
LOUDSPEAKER TECHNOLOGY
Patents Pending
        (121)  PCT/US91/02731 Publication No. W092/19080
               Improvements  in and relating to Transmission  Line  Loudspeakers
               Filed  April 19,  1991.  The sound wave  radiated  from the front
               surface of a loudspeaker driver diaphragm is of opposite polarity
               with respect to that radiated  from the back surface.  If the two
               signals  are  directly  combined,  they will  tend to cancel  one
               another.  An acoustic phase  inversion  network is used to insure
               that the back  wave is in phase  with  the  front  wave,  and the
               combined  signals  are used to drive the  inlet of a  loudspeaker
               transmission line.
                EPO 91920600.3 Publication No. 0580579
                Improvements in and relating to Transmission  Line  Loudspeakers
                Filed April 19,  1991.  The sound wave  radiated  from the front
                surface of a
               loudspeaker driver diaphragm is of opposite polarity with respect
               to that radiated  from the back  surface.  If the two signals are
               directly  combined,  they  will tend to cancel  one  another.  An
               acoustic phase inversion  network is used to insure that the back
               wave is in phase with the front wave,  and the  combined  signals
               are used to drive the inlet of a loudspeaker transmission line.

        (149)  No. PCT/US91/07324 Publication No. W093/07729
               Vacuum Speaker Filed October 2, 1991. A speaker  enclosure with a
               partial vacuum behind the speaker. A spring is used to offset the
               static  forces.  The result is a smaller  enclosed  volume  while
               maintaining low frequency performance.
        (???)  No. PCT/US92/05771 Publication No. WO94/01979
               Hydraulic  Powered  Loudspeaker  A hydraulic  powered  low-damped
               loudspeaker  including a hydraulic  cylinder (21) attached to the
               cone  (22)  of  a  speaker  which  can  be  used  in  a  bandpass
               loudspeaker.
Patent
UK 2,858,759    Issued  March  11,  1981,  entitled  "Depressing  the
                Resonant  Frequency of a Suspended  Mass".  Described the use of
                active  control  to  reduce  the  spring  force  constant  of  a
                suspended  mass (e.g.  a  loudspeaker  cone) so as to reduce the
                effective resonant frequency of the structure.
US 3,247,925    Issued  April  26,  1966,   entitled   "Loudspeaker".
                Described  the  improvement  of the  efficiency of low frequency
                loudspeakers by exciting bending waves in a light weight,  stiff
                panel  which  remains  essentially  stationary,  except  for the
                bending waves.



<PAGE>



AS WITNESS the parties have executed this Agreement the day and year first above
written.


SIGNED BY                                                )
                                                         )
                                                         )
                                                         )
for  NOISE CANCELLATION TECHNOLOGIES, INC.               )



SIGNED BY                                                )
                                                         )
and                                                      )
                                                         )
for VERITY GROUP plc                                     )



SIGNED BY                                                )
                                                         )
and                                                      )
                                                         )
for NEW TRANSDUCERS LIMITED                              )


<PAGE>


                                                                   Schedule G
                               Short Form Licence

THIS AGREEMENT is made the  15th  day of April 1997
- --------------
BETWEEN:
- --------
(1)   Noise  Cancellation  Technologies,  Inc. a Delaware  corporation  with 
      offices at 1025 West Nursery Road, Linthicum, Maryland 21090, USA 
      (the "Licensor");
(2)   Verity Group plc, a public company incorporated in England and Wales under
      number 514718 with its  registered  office at Stonehill,  Huntingdon  PE18
      6ED, England ("Verity"); and
(3)   New Transducers  Limited, a private company limited by shares incorporated
      in England  and Wales  under No.  3135528  whose  registered  office is at
      Stonehill, Huntingdon, PE18 6ED, England (the "Licensee").
THE PARTIES AGREE THAT:

1.    In this Agreement the following expressions shall have the following 
meanings:
1.1   "US Patents"                  means, inter alia, those patent and patent
                                    applications  listed in the Schedule to this
                                    Agreement which are filed or registered with
                                    the United States Patent Office.
1.2   "Non US Patents"              means, inter alia, those patents and patent
                                    applications listed in the Schedule to this
                                    Agreement which are not US Patents.
2. Pursuant to a cross  licence  agreement of even date made between the parties
(the  "Agreement"),  in consideration of the allotment by Verity to the Licensor
of  3,350,000  ordinary  shares of 5p each in the capital of Verity  credited as
fully paid,  the Licensor has granted to Verity an exclusive  worldwide  licence
for the exploitation in the fields of use relating to Consumer audio, Pro-audio,
Multimedia, Communications handsets, Marketing and promotional devices, Domestic
and  industrial  appliances,  Multi-Field  Components  and other  fields for the
propagation  and  reproduction  of  sound  (all  as  defined  in the  Agreement)
(together  referred  to  herein as the  "Fields  of Use")  under the US  Patents
subject to the terms and  conditions of the Agreement.  
3.  Further,  pursuant to the  Agreement,  in  consideration  for the payment of
royalties in accordance  with the Agreement,  the Licensor has granted to Verity
an exclusive  worldwide  licence for exploitation in the Fields of Use under the
Non US Patents subject to the terms of the Agreement.
4. By a novation  agreement of even date  entered into between the parties,  the
Licensor  and  Verity   irrevocably   and   unconditionally   consented  to  the
substitution of the Licensee for Verity in the Agreement  (except the obligation
of Verity to allot  shares of Verity) and  expressly  agreed that all rights and
liabilities  of Verity under the  Agreement  shall be deemed to be vested,  with
effect from the date hereof, in the Licensee for all purposes.
5. The Licensor,  Verity and the Licensee  have entered into this  Agreement for
the purposes of recording the Licensee as an exclusive licensee for exploitation
in the  Fields of Use under the  Patents  at the UK  Patent  Office  (and  other
relevant Patent Offices).
6. In the  event  of  conflict  between  the  terms  of the  Agreement  and this
Agreement,  the  terms of the  Agreement  shall  prevail.  In  particular,  this
Agreement shall not extend the licences granted under article 2 of the Agreement
7. This Agreement  shall be governed by and construed in accordance with English
law. Each of the parties  irrevocably submits to the jurisdiction of the English
Courts.


                                    Schedule
                           NCTI INTELLECTUAL PROPERTY
VIRGINIA POLYTECHNIC INSTITUTE
Patents
US 4,715,559    Issued  December 29, 1987,  entitled  "Apparatus  and
                Method  for  Global  Noise  Reduction".  Describes  a method for
                quieting  within an enclosed space by  anti-vibrating  the walls
                with piezo-electric devices. It formed the basis for NCTI's work
                on active panels.
US 5,335,417    Issued October 11, 1992,  entitled "Active Control of
                Aircraft  Engine  Inlet Noise Using  Compact  Sound  Sources and
                Distributed  Error Sensors".  Part of this patent  describes the
                use of piezo  actuators  bonded to  curved  panels as a means of
                generating  sound.  The panel  geometry  is chosen to  emphasize
                particular  frequencies.  This  technique is used in transformer
                quieting.
US 5,515,444    Issued May 7, 1996.  Continuation of US 5,335,417,  in
                which the curved panel is dynamically  tuned to maintain optimal
                performance.
<PAGE>
PIEZO TECHNOLOGY
Patents
US 5,473,214    Issued December 5, 1995,  entitled "Low Voltage Bender
                Piezo Actuators". The use of a stack of piezo electric layers to
                produce a vibration actuator. Multiple layers reduce the voltage
                levels  required  to drive the  actuator.  This makes  packaging
                easier and allows cheaper amplifiers to be used.3



Patents Pending
                PCT/US94/04553 (filed May 04, 1994) Publication No. WO04/27331
                Low Voltage Bender Piezo Actuators.  The use of a stack of 
                piezo electric layers to produce a vibration  actuator.  
                Multiple  layers reduce the voltage  levels  required to drive 
                the  actuator.  This makes packaging easier and allows cheaper 
                amplifications to be used.


                EPO 94914908.2 (filed May 04, 1994) Publication No. 0698298
                Low Voltage Bender Piezo Actuators.  The use of a stack of 
                piezo electric layers to produce a vibration  actuator.  
                Multiple  layers reduce the voltage  levels  required to drive 
                the  actuator.  This makes packaging easier and allows cheaper 
                amplifications to be used.

PIEZO TECHNOLOGY
Patents pending
        (253)  No.  PCT/US95/05720  (filed 09/05/95)  Publication No. W095/31805
               Multimedia  Personal  Computer  with Active Noise  Reduction  and
               Piezo Speakers: US filed May 11, 1994. A piezo patch is bonded to
               the  case of a PC so that the  whole  case  acts as  loudspeaker.
               Active  Noise  Reduction  and  microphones  are included to fully
               equip the PC for multimedia applications.
               EPO 95918420.1 (filed May 09, 1995) Publication No. 0760996
               Multimedia Personal Computer with Active Noise Reduction andPiezo
               Speakers: A piezo patch is bonded to the case of a PC so that the
               whole  case  acts as  loudspeaker.  Active  Noise  Reduction  and
               microphones  are  included to fully  equip the PC for  multimedia
               applications.
                US 08/241440
                Multimedia  Personal  Computer  with Active Noise  Reduction and
               Piezo Speakers: US filed May 11, 1994. A piezo patch is bonded to
               the  case of a PC so that the  whole  case  acts as  loudspeaker.
               Active  Noise  Reduction  and  microphones  are included to fully
               equip the PC for multimedia applications.
        (256)  No. PCT/US95/08131 (filed 29/06/95) Publication No. W096/01547
               Piezo Speaker and Installation Method for Laptop Personal 
               Computer and other Multimedia Applications: US filed July 6, 
               1994. A piezo patch is bonded to the case of a PC to act as a 
               loudspeaker. Dampening materials and stiffeners to improve the 
               performance of a piezo loudspeaker. (U.S. application
               approved for issue).
               EPO 95924733.9 (filed June 29, 1995) Publication No. 0772953
               Piezo Speaker and Installation Method for Laptop Personal 
               Computer and other Multimedia Applications:  A piezo patch is 
               bonded to the case of a PC to act as a loudspeaker. Dampening 
               materials and stiffeners to improve the performance of a piezo 
               loudspeaker.
               US 08/267218
               Piezo Speaker and Installation Method for Laptop Personal 
               Computer and other Multimedia Applications: US filed July 6, 
               1994. A piezo patch is bonded to the case of a PC to act as a 
               loudspeaker. Dampening materials and stiffeners to improve the 
               performance of a piezo loudspeaker. (U.S. application approved 
               for issue).

        (260)  US 08/533048
               Piezo  Speaker for Improved  Passenger  Cabin Audio  Systems:  US
               filed  September 25, 1995.  Improvements  include the addition of
               combined   constrained   damping/insulation   layer,   integrated
               electronics and the inclusion of intermediate  coupling plates to
               enhance  performance.  This  technique  is  applied  to all  flat
               interior surfaces of a car interior.
                PCT to be advised
                Piezo Speaker for Improved  Passenger  Cabin Audio  Systems:  US
               filed  September 25, 1995.  Improvements  include the addition of
               combined   constrained   damping/insulation   layer,   integrated
               electronics and the inclusion of intermediate  coupling plates to
               enhance  performance.  This  technique  is  applied  to all  flat
               interior surfaces of a car interior.
        (269)  US 08/554049
               Piezoelectric Transducers:  US filed November 6, 1995. An 
               extension of (260). Improved transducer coupling systems that
               significantly improves piezo performance.
                PCT to be advised
                Piezoelectric Transducers:  US filed November 6, 1995. An 
               extension of (260). Improved transducer coupling systems that 
               significantly improves piezo performance. 
<PAGE>
FLAT PANEL TRANSDUCERS
Patents Pending
        (277)   US 08/720163
                Vehicular  Loudspeaker  System:  US filed September 25, 1996. An
                improved  loudspeaker  system for a passenger vehicle such as an
                automobile.  The system comprises a transducer  capable of being
                excited by applied electric  potential and electronic means that
                is  electrically  connected to the  transducer to apply electric
                potential   thereto.   The  diaphragm   driven  by  the  excited
                transducer is comprised of the headliner of the vehicle or other
                flat surfaces.
        (400)  No. GB 961 9835.3 (filed 23/09/96)
               Audio System Using Flat Panel  Loudspeakers:  UK filed  September
               23, 1996. A home  entertainment  system consisting of a plurality
               of  flat  panel  loudspeakers  and  electroacoustics   transducer
               apparatus  having a flatter  frequency  response than  previously
               possible.


        (401)  No. GB 961 9967.4 (filed 25/09/96)
               Electroacoustics  Transducer Arrangement:  UK filed September 25,
               1996.  An  electroacoustics  transducer  consisting  of two panel
               membranes. The phase of the sound wave produced at the rear panel
               is set so that if that wave is reflected,  it will constructively
               interfere with the wave produced at the forward panel.

        (402)  No. GB 962 1523.1 (filed 16/10/96)
               A Flat Panel  Loudspeaker  Arrangement  and Hands Free  Telephone
               System  Using the Same:  UK filed  October 16, 1996. A flat panel
               loudspeaker  arrangement  which  can be  attached  to the roof or
               headlining  of a vehicle to position the  loudspeaker  of a hands
               free telephone more conveniently.
        (403)  No. GB 962 5315.8 (filed 05/12/96)
               Electroacoustics  Transducer  Arrangement:  UK filed  December 5,
               1996.  (An  extension  of 401).  An  electroacoustics  transducer
               consisting  of two panel  membranes.  The phase of the sound wave
               produced  at the  rear  panel  is set so  that  if  that  wave is
               reflected,  it  will  constructively   interfere  with  the  wave
               produced  at the forward  panel.  The  constructive  interference
               effect  can also be used to  flatten or  equalise  the  frequency
               response of the system.
        (404)  No. GB 962 4302.7 (filed 22/11/96)
               Flat Panel Loudspeaker  Arrangement:  UK filed November 22, 1996.
               Involves the selection and arrangement of piezoelectric  elements
               so  that  the  piezoelectric  elements  provide  the  flat  panel
               loudspeaker with an equalised frequency response.
        (405)  No. GB 962 6439.5 (filed 20/12/96)
               A Multiple Panel  Electroacoustic  Transducer:  UK filed December
               20,  1996.  An  improved  electroacoustic  transducer  comprising
               multiple parallel panel members with an actuator  arrangement for
               driving the panel members in phase.
        (406)  No. GB 970 0336.2 (filed 09/01/97)
               Panel Mounting  Arrangement for  Electroacoustic  Transducer:  UK
               filed  January 9, 1997.  An improved  electroacoustic  transducer
               that isolates acoustic vibrations generated by the front and rear
               faces of a panel so that they do not interfere.
<PAGE>
LOUDSPEAKER TECHNOLOGY
Patents Pending
        (121)  PCT/US91/02731 Publication No. W092/19080
               Improvements  in and relating to Transmission  Line  Loudspeakers
               Filed  April 19,  1991.  The sound wave  radiated  from the front
               surface of a loudspeaker driver diaphragm is of opposite polarity
               with respect to that radiated  from the back surface.  If the two
               signals  are  directly  combined,  they will  tend to cancel  one
               another.  An acoustic phase  inversion  network is used to insure
               that the back  wave is in phase  with  the  front  wave,  and the
               combined  signals  are used to drive the  inlet of a  loudspeaker
               transmission line.
                EPO 91920600.3 Publication No. 0580579
               Improvements  in and relating to Transmission  Line  Loudspeakers
               Filed  April 19,  1991.  The sound wave  radiated  from the front
               surface of a loudspeaker driver diaphragm is of opposite polarity
               with respect to that radiated  from the back surface.  If the two
               signals  are  directly  combined,  they will  tend to cancel  one
               another.  An acoustic phase  inversion  network is used to insure
               that the back  wave is in phase  with  the  front  wave,  and the
               combined  signals  are used to drive the  inlet of a  loudspeaker
               transmission line.
        (149)  No. PCT/US91/07324 Publication No. W093/07729
               Vacuum Speaker
               Filed October 2, 1991. A speaker  enclosure with a partial vacuum
               behind the speaker. A spring is used to offset the static forces.
               The result is a smaller  enclosed  volume while  maintaining  low
               frequency performance.
        (???)  No. PCT/US92/05771 Publication No. WO94/01979
               Hydraulic Powered Loudspeaker
               A hydraulic powered low-damped  loudspeaker including a hydraulic
               cylinder (21) attached to the cone (22) of a speaker which can be
               used in a bandpass loudspeaker.
Patent
UK 2,858,759    Issued  March  11,  1981,  entitled  "Depressing  the
                Resonant  Frequency of a Suspended  Mass".  Described the use of
                active  control  to  reduce  the  spring  force  constant  of  a
                suspended  mass (e.g.  a  loudspeaker  cone) so as to reduce the
                effective resonant frequency of the structure.
US 3,247,925    Issued  April  26,  1966,   entitled   "Loudspeaker".
                Described  the  improvement  of the  efficiency of low frequency
                loudspeakers by exciting bending waves in a light weight,  stiff
                panel  which  remains  essentially  stationary,  except  for the
                bending waves.




<PAGE>



AS WITNESS the parties have executed this Agreement the day and year first above
written.

SIGNED BY                                          )
                                                   )
                                                   )
                                                   )
for  NOISE CANCELLATION TECHNOLOGIES, INC.         )



SIGNED BY                                          )
                                                   )
and                                                )
                                                   )
for VERITY GROUP plc                               )



SIGNED BY                                          )
                                                   )
and                                                )
                                                   )
for NEW TRANSDUCERS LIMITED                        )






<PAGE>


                                                                 EXHIBIT 10(b)
                                  SECURITY DEED

        WHEREAS, NOISE CANCELLATION  TECHNOLOGIES,  INC., a Delaware corporation
having its  principal  place of business at 1025 West Nursery  Road,  Linthicum,
Maryland 21090,  USA  (hereinafter  "NCTI"),  VERITY GROUP plc, a public company
incorporated  in England  and Wales  with its  registered  office at  Stonehill,
Huntingdon PE18 6ED, England (hereinafter "Verity") and NEW TRANSDUCERS LIMITED,
a private company  limited by shares  incorporated in England and Wales with its
registered  office  at  Stonehill,  Huntingdon  PE18 6ED,  England  (hereinafter
"NXT"), have entered into a Cross License Agreement on even date;

        WHEREAS,  under the terms of the Cross  License  Agreement,  Verity  has
agreed to allot to NCTI a certain  number of  ordinary  shares of 5p each in the
capital of Verity credited as fully paid (the "Premium Shares") in consideration
for an exclusive  license to use and  sub-license  the United States patents and
patent  applications  listed  within  Schedule 1 attached  hereto,  and NCTI has
agreed to repay to Verity a diminishing percentage of the deemed cash equivalent
of the Premium  Shares under certain  conditions  described in the Cross Licence
Agreement; and

        WHEREAS,  in  order  to  secure  NCTI's  performance  of  its  repayment
obligations to Verity pursuant to the Cross License  Agreement,  NCTI has agreed
to  transfer  to  Verity  the  ownership  of all  the  patents  and  the  patent
applications  listed in Schedule 1 attached  hereto (the "Patents") in the event
NCTI defaults in its repayment obligation;

        NOW,  THEREFORE,  for  and in  consideration  of the  sum of One  Dollar
($1.00) and other good and valuable  consideration,  the receipt and sufficiency
of which are hereby acknowledged,  NCTI hereby conditionally  assigns to Verity,
its successors and assigns,  the entire right,  title and interest in and to the
Patents,  said assignment  being  conditioned on the continuance of a default at
any time during a period of three years from the date of this  Security  Deed in
the payment of  US$3,000,000  (being the deemed cash  equivalent  of the Premium
Shares at the date of this Agreement) less the Premium  Reduction (as defined in
the Cross License  Agreement)  pursuant to Article 9 of the Cross License  
Agreement for a period of 14 days, upon which occurrence this assignment 
shall become operative.

        IN WITNESS WHEREOF,  NCTI, by its duly authorized officer,  has executed
this Security Deed as an instrument under seal, this 14th day of April, 1997.


                           NOISE CANCELLATION TECHNOLOGIES, INC.

                           By: /s/ MICHAEL J. PARRELLA
                               -----------------------
                               Michael J. Parrella
(SEAL)                         Title:  President



                                 ACKNOWLEDGEMENT

        Before  me this  fourteenth  day of  April,  1997,  personally  appeared
Michael Joseph Parrella, known to me to be the person who executed this Security
Deed, and who acknowledged  that such Security Deed was executed for the purpose
therein expressed.

                                  /s/ RICHARD J. SAVILLE
                                  ----------------------
                                  Notary Public
                                  My Commission expires at Death

                       Saville & Co., Notaries Public
                       2 Throgmorton Avenue
                       London EC2N 2ER
                       Telephone:  0171 920 0000
                       Fax:  0171 920 0088





<PAGE>


                                   SCHEDULE 1

                           NCTI INTELLECTUAL PROPERTY

VIRGINIA POLYTECHNIC INSTITUTE

Patents

US 4,715,559    Issued  December 29, 1987,  entitled  "Apparatus  and
                Method  for  Global  Noise  Reduction".  Describes  a method for
                quieting  within an enclosed space by  anti-vibrating  the walls
                with piezo-electric devices. It formed the basis for NCTI's work
                on active panels.

US 5,335,417    Issued October 11, 1992,  entitled "Active Control of
                Aircraft  Engine  Inlet Noise Using  Compact  Sound  Sources and
                Distributed  Error Sensors".  Part of this patent  describes the
                use of piezo  actuators  bonded to  curved  panels as a means of
                generating  sound.  The panel  geometry  is chosen to  emphasize
                particular  frequencies.  This  technique is used in transformer
                quieting.

US 5,515,444    Issued May 7, 1996.  Continuation of US 5,335,417,  in
                which the curved panel is dynamically  tuned to maintain optimal
                performance.


PIEZO TECHNOLOGY

Patents

US 5,473,214    Issued December 5, 1995,  entitled "Low Voltage Bender
                Piezo Actuators". The use of a stack of piezo electric layers to
                produce a vibration actuator. Multiple layers reduce the voltage
                levels  required  to drive the  actuator.  This makes  packaging
                easier and allows cheaper amplifiers to be used.4

Patents Pending

                PCT/US94/04553  (filed May 04, 1994)  Publication No. WO04/27331
                Low Voltage Bender Piezo Actuators.  The use of a stack of piezo
                electric layers to produce a vibration actuator. Multiple layers
                reduce the voltage levels  required to drive the actuator.  This
                makes packaging easier and allows cheaper  amplifications  to be
                used.  EPO  94914908.2  (filed  May 04,  1994)  Publication  No.
                0698298 Low Voltage Bender Piezo  Actuators.  The use of a stack
                of piezo  electric  layers  to  produce  a  vibration  actuator.
                Multiple  layers reduce the voltage levels required to drive the
                actuator.   This  makes  packaging  easier  and  allows  cheaper
                amplifications to be used.


PIEZO TECHNOLOGY

Patents pending

        (253)   No.  PCT/US95/05720  (filed 09/05/95) Publication No. W095/31805
                Multimedia  Personal  Computer  with Active Noise  Reduction and
                Piezo  Speakers:  US filed May 11, 1994. A piezo patch is bonded
                to the case of a PC so that the whole case acts as  loudspeaker.
                Active Noise  Reduction  and  microphones  are included to fully
                equip the PC for multimedia applications.

                EPO  95918420.1  (filed May 09, 1995)  Publication  No.  0760996
                Multimedia  Personal  Computer  with Active Noise  Reduction and
                Piezo  Speakers.  A piezo patch is bonded to the case of a PC so
                that the whole case acts as loudspeaker.  Active Noise Reduction
                and   microphones  are  included  to  fully  equip  the  PC  for
                multimedia applications.

                US 08/241440
                Multimedia  Personal  Computer  with Active Noise  Reduction and
                Piezo  Speakers:  US filed May 11, 1994. A piezo patch is bonded
                to the case of a PC so that the whole case acts as  loudspeaker.
                Active Noise  Reduction  and  microphones  are included to fully
                equip the PC for multimedia applications.

        (256)   No. PCT/US95/08131 (filed 29/06/95) Publication No. W096/01547
                Piezo Speaker and Installation Method for Laptop Personal 
                Computer and other Multimedia Applications: US filed July 6, 
                1994. A piezo patch is bonded to the case of a PC to act as a 
                loudspeaker. Dampening materials and stiffeners to improve the 
                performance of a piezo loudspeaker. (U.S. application approved 
                for issue).



<PAGE>


                EPO  95924733.9  (filed June 29, 1995)  Publication  No. 0772953
                Piezo  Speaker  and  Installation  Method  for  Laptop  Personal
                Computer  and other  Multimedia  Applications.  A piezo patch is
                bonded  to the case of a PC to act as a  loudspeaker.  Dampening
                materials and  stiffeners to improve the  performance of a piezo
                loudspeaker.

                US 08/267218
                Piezo Speaker and Installation Method for Laptop Personal 
                Computer and other Multimedia Applications: US filed July 6, 
                1994. A piezo patch is bonded to the case of a PC to act as a 
                loudspeaker. Dampening materials and stiffeners to improve the 
                performance of a piezo loudspeaker. (U.S. application approved 
                for issue).

        (260)   US 08/533048
                Piezo Speaker for Improved  Passenger  Cabin Audio  Systems:  US
                filed September 25, 1995.  Improvements  include the addition of
                combined  constrained   damping/insulation   layer,   integrated
                electronics and the inclusion of intermediate coupling plates to
                enhance  performance.  This  technique  is  applied  to all flat
                interior surfaces of a car interior.

                PCT to be advised
                Piezo Speaker for Improved  Passenger  Cabin Audio  Systems:  US
                filed September 25, 1995.  Improvements  include the addition of
                combined  constrained   damping/insulation   layer,   integrated
                electronics and the inclusion of intermediate coupling plates to
                enhance  performance.  This  technique  is  applied  to all flat
                interior surfaces of a car interior.

        (269)   US 08/554049
                Piezoelectric Transducers: US filed November 6, 1995. An 
                extension of (260). Improved transducer coupling systems that 
                significantly improves piezo performance.

                PCT to be advised
                Piezoelectric Transducers: US filed November 6, 1995. An 
                extension of (260). Improved transducer coupling systems that 
                significantly improves piezo performance.




<PAGE>


FLAT PANEL TRANSDUCERS

Patents Pending

        (277)   US08/720163 Vehicular Loudspeaker System: US filed September 25,
                1996.  An improved  loudspeaker  system for a passenger  vehicle
                such as an automobile. The system comprises a transducer capable
                of being excited by applied  electric  potential and  electronic
                means that is electrically  connected to the transducer to apply
                electric potential thereto.  The diaphragm driven by the excited
                transducer is comprised of the headliner of the vehicle or other
                flat surfaces.

        (400)   No. GB 961 9835.3 (filed 23/09/96)
                Audio System Using Flat Panel  Loudspeakers:  UK filed September
                23, 1996. A home entertainment  system consisting of a plurality
                of  flat  panel  loudspeakers  and  electroacoustics  transducer
                apparatus  having a flatter  frequency  response than previously
                possible.

        (401)   No. GB 961 9967.4 (filed 25/09/96)
                Electroacoustics  Transducer Arrangement: UK filed September 25,
                1996.  An  electroacoustics  transducer  consisting of two panel
                membranes.  The phase of the  sound  wave  produced  at the rear
                panel  is set so  that  if  that  wave  is  reflected,  it  will
                constructively  interfere  with the wave produced at the forward
                panel.

        (402)   No. GB 962 1523.1 (filed 16/10/96)
                A Flat Panel  Loudspeaker  Arrangement  and Hands Free Telephone
                System Using the Same:  UK filed  October 16, 1996. A flat panel
                loudspeaker  arrangement  which can be  attached  to the roof or
                headlining of a vehicle to position the  loudspeaker  of a hands
                free telephone more conveniently.

        (403)   No. GB 962 5315.8 (filed 05/12/96)
                Electroacoustics  Transducer  Arrangement:  UK filed December 5,
                1996.  (An  extension of 401).  An  electroacoustics  transducer
                consisting of two panel  membranes.  The phase of the sound wave
                produced  at the  rear  panel  is set so that  if  that  wave is
                reflected,  it  will  constructively  interfere  with  the  wave
                produced at the forward  panel.  The  constructive  interference
                effect  can also be used to flatten or  equalise  the  frequency
                response of the system.



<PAGE>


        (404)   No. GB 962 4302.7 (filed 22/11/96)
                Flat Panel Loudspeaker Arrangement:  UK filed November 22, 1996.
                Involves the selection and arrangement of piezoelectric elements
                so that  the  piezoelectric  elements  provide  the  flat  panel
                loudspeaker with an equalised frequency response.

        (405)   No. GB 962 6439.5 (filed 20/12/96)
                A Multiple Panel Electroacoustic  Transducer:  UK filed December
                20,  1996.  An improved  electroacoustic  transducer  comprising
                multiple parallel panel members with an actuator arrangement for
                driving the panel members in phase.

        (406)   No. GB 970 0336.2 (filed 09/01/97)
                Panel Mounting  Arrangement for Electroacoustic  Transducer:  UK
                filed  January 9, 1997. An improved  electroacoustic  transducer
                that  isolates  acoustic  vibrations  generated by the front and
                rear faces of a panel so that they do not interfere.


LOUDSPEAKER TECHNOLOGY

Patents Pending

        (121)   PCT/US91/02731 Publication No. W092/19080
                Improvements in and relating to Transmission  Line  Loudspeakers
                Filed April 19,  1991.  The sound wave  radiated  from the front
                surface  of  a  loudspeaker  driver  diaphragm  is  of  opposite
                polarity with respect to that radiated from the back surface. If
                the two signals are directly combined,  they will tend to cancel
                one  another.  An acoustic  phase  inversion  network is used to
                insure that the back wave is in phase with the front  wave,  and
                the  combined   signals  are  used  to  drive  the  inlet  of  a
                loudspeaker transmission line.

                EPO 91920600.3 Publication No. 0580579
                Improvements in and relating to Transmission  Line  Loudspeakers
                Filed April 19,  1991.  The sound wave  radiated  from the front
                surface  of  a  loudspeaker  driver  diaphragm  is  of  opposite
                polarity with respect to that radiated from the back surface. If
                the two signals are directly combined,  they will tend to cancel
                one  another.  An acoustic  phase  inversion  network is used to
                insure that the back wave is in phase with the front  wave,  and
                the  combined   signals  are  used  to  drive  the  inlet  of  a
                loudspeaker transmission line.


<PAGE>


        (149)   No. PCT/US91/07324 Publication No. W093/07729
                Vacuum Speaker
                Filed October 2, 1991. A speaker enclosure with a partial vacuum
                behind  the  speaker.  A spring  is used to  offset  the  static
                forces.   The  result  is  a  smaller   enclosed   volume  while
                maintaining low frequency performance.

        (???)   No. PCT/US92/05771 Publication No. WO94/01979
                Hydraulic Powered Loudspeaker
                A hydraulic powered low-damped loudspeaker including a hydraulic
                cylinder  (21)  attached to the cone (22) of a speaker which can
                be used in a bandpass loudspeaker.

Patent

UK 2,858,759    Issued  March  11,  1981,  entitled  "Depressing  the
                Resonant  Frequency of a Suspended  Mass".  Described the use of
                active  control  to  reduce  the  spring  force  constant  of  a
                suspended  mass (e.g.  a  loudspeaker  cone) so as to reduce the
                effective resonant frequency of the structure.

US 3,247,925    Issued  April  26,  1966,   entitled   "Loudspeaker".
                Described  the  improvement  of the  efficiency of low frequency
                loudspeakers by exciting bending waves in a light weight,  stiff
                panel  which  remains  essentially  stationary,  except  bending
                waves.


1       Pending in Canada and Europe  
2       Pending in Canada and Europe  
3       Pending in Canada and Europe  
4       Pending in Canada and Europe  
<PAGE>
                                                             EXHIBIT NO. 10(c)


THIS  OPTION  AND THE  SECURITIES  ISSUABLE  UPON  ITS  EXERCISE  HAVE  NOT BEEN
REGISTERED  UNDER THE UNITED  STATES  SECURITIES  ACT OF 1933,  AS AMENDED  (THE
"ACT"),  OR ANY U.S. STATE  SECURITIES  LAW, AND MAY NOT BE  TRANSFERRED  EXCEPT
PURSUANT TO AN EFFECTIVE  REGISTRATION  UNDER THE ACT OR IN A TRANSACTION WHICH,
IN  THE  OPINION  OF  COUNSEL  REASONABLY  SATISFACTORY  TO  NOISE  CANCELLATION
TECHNOLOGIES,  INC.,  QUALIFIES AS AN EXEMPT  TRANSACTION  UNDER THE ACT AND THE
RULES AND REGULATIONS PROMULGATED THEREUNDER.


                      NOISE CANCELLATION TECHNOLOGIES, INC.

                          Common Stock Purchase Option


            NOISE CANCELLATION  TECHNOLOGIES,  INC., a Delaware corporation (the
"Company"),  hereby  certifies that, for value  received,  VERITY GROUP PLC (the
"Holder"),  or assigns,  is entitled,  subject to the terms set forth below,  to
purchase  from the Company,  at any time and from time to time during the period
beginning  on the first  anniversary  of the date hereof and ending on the fifth
anniversary  of the date  hereof,  in whole or in part,  an  aggregate  of three
million eight hundred fifty thousand  (3,850,000) fully paid and  non-assessable
shares of common stock,  $.01 par value  ("Common  Stock"),  of the Company at a
purchase  price,  subject to the provisions of Paragraph 3 hereof,  of $0.48 per
share (the "Purchase Price"). The Purchase Price and the number and character of
such shares are subject to  adjustment as provided  below,  and the term "Common
Stock" shall mean, unless the context otherwise  requires,  the shares of common
stock or other  securities or property at the time deliverable upon the exercise
of this  Option.  This  Option is herein  called the  "Option"  and shall  lapse
forthwith if the consent and approval by the Company's  stockholders to increase
the  authorized  share capital of the Company to permit  exercise in full by the
Holder of the Option pursuant to Clause 1 hereof is not obtained by 30 September
1997.

      1. EXERCISE OF OPTION.  The purchase rights evidenced by this Option shall
be  exercised  by  the  Holder  surrendering  this  Option,  with  the  form  of
subscription  at the end hereof duly executed by such Holder,  to the Company at
its office in One Dock Street,  Suite 300, Stamford,  Connecticut 06902, U.S.A.,
Attention:  General  Counsel,  accompanied by payment,  in cash, by certified or
official bank check or by wire transfer of an amount equal to the Purchase Price
multiplied by the number of shares being purchased  pursuant to such exercise of
the Option.

      1.1 Partial Exercise.  This Option may be exercised for less than the full
number of shares of Common Stock, in which case the number of shares  receivable
upon the  exercise  of this  Option  as a whole,  and the sum  payable  upon the
exercise of this Option as a whole, shall be proportionately  reduced.  Upon any
such partial  exercise,  the Company at its expense will forthwith  issue to the
Holder  hereof a new Option or Options of like tenor  calling  for the number of
shares of Common Stock as to which rights have not been  exercised,  such Option
or Options to be issued in the name of the Holder  hereof or his  nominee  (upon
payment by such Holder of any applicable transfer taxes).


      2.  DELIVERY OF SHARE  CERTIFICATES  ON EXERCISE.  As soon as  practicable
after the exercise of this Option and payment of the Purchase Price,  and in any
event within ten (10) days thereafter,  the Company, at its expense,  will cause
to be issued in the name of and delivered to the Holder hereof a certificate  or
certificates  for the  number of fully paid and  non-assessable  shares or other
securities  or  property  to which  such  Holder  shall be  entitled  upon  such
exercise,  plus,  in lieu of any  fractional  share to which such  Holder  would
otherwise be entitled, cash in an amount determined in accordance with Paragraph
3.7 hereof.  The Company agrees that the shares so purchased  shall be deemed to
be issued to the  Holder  hereof as the  record  owner of such  shares as of the
close of business on the date on which this Option  shall have been  surrendered
and payment made for such shares as aforesaid.


      3. ADJUSTMENTS. In the event of changes in the outstanding Common Stock of
the  Company  by reason of stock  dividends,  stock  splits,  recapitalizations,
mergers,   consolidations,   combinations,   exchange  of  shares,  separations,
reorganization, or liquidations, the number of shares issuable upon the exercise
of the Option,  and the exercise  price thereof shall be adjusted by the Company
in such manner as shall be fair and equitable. Any such adjustment in the number
of shares shall apply  proportionately  to only the then unexercised  portion of
the Option.  If  fractional  shares would result from any such  adjustment,  the
adjustment shall be revised to the next lower whole number of shares.

      3.1 For the  avoidance  of doubt,  there  shall be no  adjustments  to the
number of shares issuable upon the exercise of the Option and the exercise price
thereof other than herein provided.
<PAGE>
      4. NO DILUTION OR  IMPAIRMENT.  The Company  will not, by amendment of its
charter or through reorganization,  consolidation,  merger, dissolution, sale of
assets or any other voluntary  action,  avoid or seek to avoid the observance or
performance  of any of the terms of this  Option,  but will at all times in good
faith assist in the carrying out of all such terms and in the taking of all such
action as may be necessary or  appropriate in order to protect the rights of the
Holder hereof against dilution or other impairment arising as a result of any of
the events specified in Section 3 above.  Without limiting the generality of the
foregoing,  the Company  will not  increase the par value of any shares or stock
receivable  upon the exercise of this Option above the amount  payable  therefor
upon  such  exercise,  and at all  times  will  take all such  action  as may be
necessary or appropriate in order that the Company may validly and legally issue
fully paid and non-assessable stock upon the exercise of this Option.


      5. RESERVATION OF SHARES, ETC., ISSUABLE ON EXERCISE OF OPTIONS.  Upon the
approval  of  the  Company's  stockholders  to an  amendment  to  the  Company's
certificate  of  incorporation  to increase the number of  authorized  shares of
Common Stock in an amount  sufficient  to permit the Company to issue the number
of shares of Common  Stock  issuable  upon  exercise  of the  Option in full (as
contemplated  in the preamble to this  Option),  the Company  shall at all times
reserve and keep available out of its authorized but unissued stock,  solely for
the  issuance and  delivery  upon the exercise of this Option and other  similar
Options,  such number of its duly authorized shares of Common Stock as from time
to time shall be issuable upon the exercise of this Option and all other similar
Options at the time outstanding.

      6. BOARD OF DIRECTORS.  The Company shall, if requested by the Holder,  no
later than  fifteen  days after the date of this  Agreement  and  subject at all
times to the  provisions  of the  Company's  certificate  of  incorporation  and
by-laws,  take all  action  within  its power  (including,  without  limitation,
amendment  to the  Company's  by-laws  increasing  the number of  directors)  to
appoint one individual designated by the Holder and reasonably acceptable to the
Company as a member of the Board of Directors of the Company, to serve until the
next  election of  directors.  From and after the next election of directors and
until the third anniversary of this Agreement (whether the individual designated
by the Holder in the immediately  preceding  sentence was actually  appointed to
the Board of Directors of the Company or not), the Company  shall,  if requested
by the  Holder,  nominate  and  take all  action  within  its  power to have one
individual  designated  by the Holder and  reasonably  acceptable to the Company
elected to the Company's  Board of Directors.  This clause 6 is subject to Board
approval.  Michael  Parrella  agrees to use his best  endeavours  to secure such
Board approval.

         For the  avoidance  of doubt,  the lack of  approval of the Board of
Directors  of the  Company  shall in no way  affect the  validity  of the Option
granted hereunder, which shall remain in full force and effect.

      7. REPLACEMENT OF OPTION. Upon receipt of evidence reasonably satisfactory
to the Company of the loss, theft,  destruction or mutilation of this Option and
(in the case of loss,  theft  or  destruction)  upon  delivery  of an  indemnity
agreement  (with  surety  if  reasonably   required)  in  an  amount  reasonably
satisfactory  to  it,  or  (in  the  case  of  mutilation)  upon  surrender  and
cancellation  thereof,  the Company will issue, in lieu thereof, a new Option of
like tenor.


      8. REMEDIES.  The Company  stipulates  that the remedies at law of the 
Holder of this Option in the event of any default by the Company in the  
performance of or compliance  with  any of the  terms  of this  Option  are 
not  and  will  not be adequate, and that the same may be specifically enforced.


      9.    NEGOTIABILITY, ETC.  This Option is issued upon the following 
terms, to all of which each taker or owner hereof consents and agrees:

             (i)  This Option shall be binding upon and inure for the benefit of
      the successors of the parties, but  shall not be assignable or 
      transferable.

             (ii) Prior to the exercise of this Option,  the Holder hereof shall
      not be entitled to any rights of a shareholder of the Company with respect
      to shares for which this Option shall be exercisable,  including,  without
      limitation, the right to vote, to receive dividends or other distributions
      or to exercise any preemptive rights, and shall not be entitled to receive
      any notice of any proceedings of the Company, except as provided herein.
<PAGE>
              (iii) The  Company  shall not be  required  to pay any  Federal or
      state  transfer  tax or  charge  that may be  payable  in  respect  of any
      transfer  involved  in the  transfer  or  delivery  of this  Option or the
      issuance or conversion or delivery of  certificates  for Common Stock in a
      name other than that of the  registered  Holder of this Option or to issue
      or deliver any  certificates  for shares of Common Stock upon the exercise
      of this Option until any and all such duty,  taxes and charges  shall have
      been paid by the Holder of this Option or until it has been established to
      the Company's satisfaction that no such tax or charge is due.


      10. SUBDIVISION OF RIGHTS.  This Option (as well as any new options issued
pursuant  to the  provisions  of  this  paragraph)  is  exchangeable,  upon  the
surrender  hereof by the Holder hereof,  at the principal  office of the Company
for any  number  of new  options  of like  tenor  and date  representing  in the
aggregate the right to subscribe for and purchase the number of shares of Common
Stock of the Company which may be subscribed for and purchased hereunder.


      11. MAILING OF NOTICES, ETC. All notices and other communications from the
Company to the Holder of this Option  shall be mailed by  first-class  certified
mail, postage prepaid, to the address furnished to the Company in writing by the
last Holder of this Option who shall have furnished an address to the Company in
writing.

      12.   HEADINGS, ETC.  The headings in this Option are for purposes of 
reference only, and shall not limit or otherwise affect the meaning hereof.

      13.   CHANGE, WAIVER, ETC.  Neither this Option nor any term hereof may 
be changed, waived, discharged or terminated orally but only by an instrument 
in writing signed by the party against which enforcement of the change, 
waiver, discharge or termination is sought.

      14.   GOVERNING LAW.  THIS OPTION SHALL BE CONSTRUED AND ENFORCED IN 
ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE.


                      NOISE CANCELLATION TECHNOLOGIES INC.


                      By: /s/ MICHAEL J. PARRELLA
                          --------------------
                          Michael J. Parrella

Dated: April 15, 1997

Attest:


/s/ M. A. PATERSON
- --------------------
    M. A. Paterson
    Solicitor
    21 Wilson St EC2


<PAGE>


                   [To be signed only upon exercise of Option]



To Noise Cancellation Technologies, Inc.

            The undersigned, the Holder of the within Option, hereby irrevocably
elects to exercise the  purchase  right  represented  by such Option for, and to
purchase thereunder, ____________ shares of Common Stock of Noise Cancellation 
Technologies, Inc. and herewith makes payment of $_____________ therefor, and 
requests that the certificates for such shares be issued in the name of, and 
be delivered to _______  whose address is __________________________. 


Dated:

- --------------------


 (Signature must conform in all respects to name of Holder as specified on 
the face of the Option)


                                    -------------------------------

                                    -------------------------------
                                                Address




<PAGE>


                                                             EXHIBIT No. 10(d)
                      NOISE CANCELLATION TECHNOLOGIES, INC.

April 17, 1997

Verity Group PLC
Stonehill
Huntingdon  PE 18 6ED  England

Dear Sirs:

This letter,  when countersigned by Verity Group PLC ("Verity") shall constitute
an agreement between Noise Cancellation  Technologies,  Inc. ("NCTI") and Verity
in  relation to the common  stock  purchase  option  granted by NCTI in favor of
Verity dated April 15, 1997 (the "NCTI Option").  All capitalized  terms used in
this  Agreement  shall bear the meanings given thereto in the NCTI Option unless
the context otherwise requires.

1.    Amendment of NCTI Option.

Effective the date hereof, the Purchase Price specified in the NCTI Option shall
be $0.30 per share.

Except as provided in this  Paragraph 1, all of the terms and  conditions of the
NCTI Option  (other than the Purchase  Price) are hereby  ratified and confirmed
and remain in full force and effect.

2.    Termination of Prior Option.

Effective  April 15, 1997, the common stock  purchase  option granted by NCTI in
favor of Verity dated March 28, 1997 is canceled,  terminated and of no force or
effect.

Kindly  acknowledge your acceptance and agreement to the terms of this letter by
signing the  enclosed  copy of this letter and  returning  it to NCTI as soon as
possible.

Very truly yours,

NOISE CANCELLATION TECHNOLOGIES, INC.

By:   /s/ MICHAEL J. PARRELLA
      -----------------------
      Michael J. Parrella, President



Verity Group PLC hereby accepts and agrees to the terms of this letter:

VERITY GROUP PLC

By:   /s/ FARAD AZIMA
      ----------------------
      Farad Azima, Chairman

           One Dock Street, Suite 300, Stamford, Connecticut 06902
           Tel 203-961-0500, Fax 203-348-4106, www.nct-active.com


<PAGE>

                                                                  EXHIBIT 11
<TABLE>
<CAPTION>
NOISE CANCELLATION TECHNOLOGIES, INC. AND SUBSIDIARIES
Computation of Net Profit (Loss) Per Share
                                                        (In thousands, except per share amounts)
                                                                Six months ended June 30,
                                                        ----------------------------------------                              
                                                              1996                     1997
                                                        ---------------           --------------
               PRIMARY
<S>                                                     <C>                       <C> 
Net (loss)                                                    ($3,948)                 ($2,011)
  Less:  reduction of interest expense or interest
  earned attributable to utilization of assumed
  proceeds from exercise of options and warrants
  in excess of amounts required to repurchase
  20% of the outstanding common stock at average
  market price                                          ---------------           --------------
  ADJUSTED NET (LOSS)                                         ($3,948)                 ($2,011)
                                                        ===============           ==============

Weighted average number of shares outstanding.                 94,468                  117,332
  Add:  common equivalent shares (determined using
  the "Treasury Stock" method) representing shares
  issuable upon assumed exercise of options and
  warrants in excess of average market price                    2,514                      531

Shares issuable upon conversion of Series B
  preferred shares                                                  -                        -
                                                        ---------------           --------------
  SHARES USED FOR COMPUTATION                                  96,982                  117,863
                                                        ===============           ==============

  PRIMARY NET (LOSS) PER SHARE                                 ($0.04)                  ($0.02)
                                                        ===============           ==============

               FULLY DILUTED
Net (loss)                                                    ($3,948)                  ($2,011)
  Less:  reduction of interest expense or interest
  earned attributable to utilization of assumed
  proceeds from exercise of options and warrants
  in excess of amounts required to repurchase
  20% of the outstanding common stock at year-end
  market price if greater than average market price     ---------------           --------------
  ADJUSTED NET (LOSS)                                         ($3,948)                  ($2,011)
                                                        ===============           ==============

Weighted average number of shares outstanding.                 94,468                   117,332
  Add:  common equivalent shares (determined using
  the "Treasury Stock" method) representing shares
  issuable upon assumed exercise of options and
  warrants in excess of year-end market price
  if greater than average market price                          2,514                       531

Shares issuable upon conversion of Series B
  preferred shares                                                  -                         -
                                                        ---------------           --------------
  SHARES USED FOR COMPUTATION                                  96,982                   117,863
                                                        ===============           ==============

FULLY DILUTED NET (LOSS) PER SHARE                             ($0.04)                   ($0.02)
                                                        ===============           ==============



  

The above per share data are not reported on the statement of operations because
such data is anti-dilutive.
</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>



<ARTICLE>                     5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE 
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) AND NOTES TO THE 
CONDENSED CONSOLIDATED FINANCIAL STATEMENTS FOR THE SIX MONTH PERIOD ENDED
JUNE 30, 1997, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH 10-K 
FOR THE YEAR ENDED DECEMBER 31, 1996, AS AMENDED, FILED ON APRIL 15, 1997.     
</LEGEND>
<CIK>                         0000722051
<NAME>                        NOISE CANCELLATION TECHNOLOGIES, INC.
<MULTIPLIER>                                   1000
<CURRENCY>                                     US DOLLARS
       
<S>                                            <C>
<PERIOD-TYPE>                                  YEAR
<FISCAL-YEAR-END>                              DEC-31-1997
<PERIOD-START>                                 JAN-01-1997
<PERIOD-END>                                   DEC-31-1997
<CASH>                                         1,122
<SECURITIES>                                       0
<RECEIVABLES>                                    761
<ALLOWANCES>                                     112
<INVENTORY>                                    1,244
<CURRENT-ASSETS>                               3,031
<PP&E>                                         5,416
<DEPRECIATION>                                 3,585
<TOTAL-ASSETS>                                 6,570
<CURRENT-LIABILITIES>                          2,403
<BONDS>                                            0
                              0
                                        0
<COMMON>                                       1,283
<OTHER-SE>                                     2,771
<TOTAL-LIABILITY-AND-EQUITY>                   6,570
<SALES>                                          581
<TOTAL-REVENUES>                               4,004
<CGS>                                            505
<TOTAL-COSTS>                                    705
<OTHER-EXPENSES>                               5,310
<LOSS-PROVISION>                                 209
<INTEREST-EXPENSE>                                54
<INCOME-PRETAX>                               (2,011)
<INCOME-TAX>                                       0
<INCOME-CONTINUING>                           (2,011)
<DISCONTINUED>                                     0
<EXTRAORDINARY>                                    0
<CHANGES>                                          0
<NET-INCOME>                                  (2,011)
<EPS-PRIMARY>                                   (.02)
<EPS-DILUTED>                                   (.02)
        


</TABLE>


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