NOISE CANCELLATION TECHNOLOGIES INC
S-3, 1998-09-30
MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES
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  As filed with the Securities and Exchange Commission on September 30,1998
                                              Registration No. 333-___________
_______________________________________________________________________________
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549
                                ______________
                                   FORM S-3
                            REGISTRATION STATEMENT
                                    UNDER
                          THE SECURITIES ACT OF 1933
                               _______________
                    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
Incorporation or Organization)
Identification No.)
              1025 West Nursery Road, Linthicum, Maryland 21090
                                (410) 636-8700
   (Address, Including Zip Code, and Telephone Number, Including Area Code,
                 of Registrant's Principal Executive Offices)
                               _______________
                             JOHN B. HORTON, Esq.
             Senior Vice President, General Counsel and Secretary
                    Noise Cancellation Technologies, Inc.
                               One Dock Street
                         Stamford, Connecticut 06902
                        (203) 961-0500, Extension 3503
              (Name, Address, Including Zip Code, and Telephone
              Number, Including Area Code, of Agent For Service)
                 Copies of all communications and notices to:
                           WILLIAM P. O'NEILL, Esq.
                            CROWELL & MORING, LLP
                        1001 Pennsylvania Avenue, N.W.
                         Washington, D.C. 20004-2595
                                (202) 624-2500
                                ______________
       Approximate date of commencement of proposed sale to the public:
  From time to time after the effective date of this Registration Statement.

If the  only  securities  being  registered  on this  Form are  being  offered
pursuant  to  dividend  or  interest  reinvestment  plans,  please  check  the
following box.     |_|
If any of the securities  being registered on this Form are to be offered on a
delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933,  other than  securities  offered  only in  connection  with  dividend or
interest reinvestment plans, check the following box.    |X|
If this  Form is filed  to  register  additional  securities  for an  offering
pursuant to Rule 462(b) under the Securities  Act, check the following box and
list  the  Securities  Act  registration   statement  number  of  the  earlier
effective registration statement for the same offering.     |_|  __________
If this Form is a  post-effective  amendment  filed  pursuant  to Rule  462(c)
under the Securities  Act, check the following box and list the Securities Act
registration  statement number of the earlier effective registration statement
for the same offering.       |_|  __________
If delivery  of the  prospectus  is expected to be made  pursuant to Rule 434,
check the following box.     |_|  __________
                       CALCULATION OF REGISTRATION FEE
- --------------------------------------------------------------------------------
                                                   Proposed
                                    Proposed        Maximum        Amount of
                                     Maximum       Aggregate     Registration
Title of Shares   Amount to be      Aggregate      Offering          Fee
to be Registered   Registered         Price       Per Unit (1)      Price (1)
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
  Common Stock     1,786,991         $0.5469      $977,305          $288.31
                    shares
- --------------------------------------------------------------------------------
(1)   Estimated solely for the purpose of calculating the registration fee
   pursuant to Rule 457(c) promulgated under the Securities Act of 1933,
   based on the average of the high and low prices for the Common Stock on
   the NASDAQ National Market System on September 23, 1998.
_______________________________________________________________________________

<PAGE>

The  Registrant  hereby  amends this  registration  statement  on such date or
dates as may be necessary  to delay its  effective  date until the  registrant
shall  file  a  further   amendment  which   specifically   states  that  this
registration  statement shall  thereafter  become effective in accordance with
Section  8(a)  of the  Securities  Act  of  1933  or  until  the  registration
statement  shall  become  effective  on such  date as the  Commission,  acting
pursuant to said Section 8(a), may determine.

INFORMATION  CONTAINED  HEREIN  IS  SUBJECT  TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION  STATEMENT  RELATING TO THESE  SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE  COMMISSION.  THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS  TO BUY BE  ACCEPTED  PRIOR  TO THE  TIME  THE  REGISTRATION  STATEMENT
BECOMES  EFFECTIVE.  THIS PROSPECTUS  SHALL NOT CONSTITUTE AN OFFER TO SELL OR
THE  SOLICITATION  OF AN  OFFER  TO BUY NOR  SHALL  THERE BE ANY SALE OF THESE
SECURITIES  IN ANY STATE IN WHICH SUCH  OFFER,  SOLICITATION  OR SALE WOULD BE
UNLAWFUL PRIOR TO REGISTRATION OR  QUALIFICATION  UNDER THE SECURITIES LAWS OF
ANY SUCH STATE.







<PAGE>

            SUBJECT TO COMPLETION, DATED SEPTEMBER 30, 1998

                               PROSPECTUS

                            1,786,991 SHARES

                 NOISE CANCELLATION TECHNOLOGIES, INC.

                              COMMON STOCK
                              ------------
   This  offering  consists of the resale of 1,786,991  shares of Common
Stock  which were issued by the  Company in a private  placement  exempt
from  registration  under the  Securities  Act pursuant to  Regulation D
thereunder on September 4, 1998.


   All of the  foregoing  shares of Common Stock may be offered for sale
by the holders  thereof (the "Selling  Stockholders").  The Company will
not receive any of the  proceeds  from the sale of such shares of Common
Stock.

   The Company's  Common Stock is quoted on the NASDAQ  National  Market
System under the symbol  "NCTI".  The last sale price  reported for such
Common Stock on September 29,1998,  as quoted by NASDAQ, was $0.5313 per
share.

             SEE "RISK FACTORS" ON PAGES 14 THROUGH 27 FOR
              CERTAIN INFORMATION RELATING TO THE COMPANY.

THESE   SECURITIES   HAVE  NOT  BEEN  APPROVED  OR  DISAPPROVED  BY  THE
SECURITIES AND EXCHANGE  COMMISSION OR ANY STATE  SECURITIES  COMMISSION
NOR HAS THE SECURITIES AND EXCHANGE  COMMISSION OR ANY STATE  SECURITIES
COMMISSION  PASSED UPON THE  ACCURACY  OR  ADEQUACY OF THIS  PROSPECTUS.
ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

           THE DATE OF THIS PROSPECTUS IS SEPTEMBER 30, 1998


<PAGE>

                          TABLE OF CONTENTS

                                                                  Page

Available Information  (Item 2.)..................................  3

Incorporation of Certain Documents by Reference  (Item 12.).......  4

The Company  (Item 3.)............................................  5

Summary Consolidated Financial Data  (Item 3.)....................  8

Recent Developments  (Item 11.)....................................10

The Offering  (Item 1.)............................................13

Risk Factors  (Item 3.)............................................14

Use of Proceeds  (Item 4.).........................................28

Selling Stockholders  (Item 7.)....................................29

Plan of Distribution  (Item 8.)....................................30

Legal Matters  (Item 10.)..........................................31

Experts  (Item 10.)................................................31



<PAGE>

                         AVAILABLE INFORMATION

   The  Company  is  subject to the  informational  requirements  of the
Securities  Exchange Act of 1934, as amended (the "Exchange  Act"),  and
in accordance  therewith  files periodic  reports and other  information
with  the  Securities  and  Exchange   Commission  (the   "Commission").
Reports,  proxy and information  statements and other  information filed
by the  Company  can be  inspected  and copied at the  public  reference
facilities  maintained  by the  Commission  at  450  Fifth  Street,  NW,
Washington,  DC  20549  and at the  following  regional  offices  of the
Commission:  Seven World Trade Center,  Suite 1300,  New York,  New York
10048  and  Suite  1400,  Citicorp  Center,  500  West  Madison  Street,
Chicago,  Illinois  60611.  Copies of such material can also be obtained
from the Public Reference  Section of the Commission,  450 Fifth Street,
NW,  Washington,  DC  20549  at  prescribed  rates.  The  Company  is an
electronic  filer on EDGAR pursuant to Rules 100 and 101 of Registration
S-T. The Commission  maintains a Web site that contains  reports,  proxy
and information  statements and other information  regarding registrants
that file electronically  with the Commission.  The address of such site
is (http://www.sec.gov).

                            ________________

   NO DEALER,  SALESMAN, OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE
ANY INFORMATION OR TO MAKE ANY  REPRESENTATIONS  IN CONNECTION WITH THIS
OFFERING OTHER THAN THOSE  CONTAINED IN THIS  PROSPECTUS,  AND, IF GIVEN
OR MADE, SUCH INFORMATION OR  REPRESENTATION  MUST NOT BE RELIED UPON AS
HAVING  BEEN  AUTHORIZED  BY  THE  COMPANY.  THIS  PROSPECTUS  DOES  NOT
CONSTITUTE AN OFFER TO SELL, OR A  SOLICITATION  OF AN OFFER TO BUY, ANY
SECURITIES  OTHER  THAN  THE  COMMON  STOCK TO  WHICH  IT  RELATES  OR A
SOLICITATION  TO ANY PERSON IN ANY  JURISDICTION  WHERE SUCH AN OFFER OR
SOLICITATION   WOULD  BE   UNLAWFUL.   NEITHER  THE   DELIVERY  OF  THIS
PROSPECTUS NOR ANY SALE MADE HEREUNDER  SHALL,  UNDER ANY  CIRCUMSTANCE,
CREATE ANY  IMPLICATION  THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF
THE COMPANY SINCE THE DATE HEREOF.



<PAGE>

           INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

   The  following  documents  have been  filed by the  Company  with the
Commission  pursuant  to the  Exchange  Act (File No.  0-18267)  and are
incorporated herein by reference and made a part hereof:

(1)  the Company's  Annual  Report on Form 10-K for the year ended  December 31,
     1997  (including  Amendment  No. 1  thereto  filed on April 30,  1998,  and
     Amendment No. 2 thereto filed on May 4, 1998);

(2)  the Company's  Quarterly Report on Form 10-Q for the period ended March 31,
     1998 (including Amendment No. 1 thereto filed on July 1, 1998);

(3)  the Company's  Quarterly  Report on Form 10-Q for the period ended June 30,
     1998;

(4)  the Company's Current Report on Form 8-K filed on June 3, 1998;

(5)  the Company's Current Report on Form 8-K filed on June 10, 1998;

(6)  the Company's Current Report on Form 8-K filed on July 16, 1998;

(7)  the Company's Current Report on Form 8-K filed on July 29, 1998;

(8)  the Company's Current Report on Form 8-K filed on August 21, 1998; and

(9)  the  description  of  capital  stock  found  in  Item  1 of  the  Company's
     Registration Statement on Form 8-A filed with the Commission on January 30,
     1990.

   All documents filed by the Company pursuant to Section 13(a),  13(c),
14 or 15(d) of the  Exchange  Act  subsequent  to the date of  filing of
this  Prospectus  and prior to the  termination  of the  offering of the
Common Stock covered by this  Prospectus  are deemed to be  incorporated
by reference and shall be a part hereof from their  respective  dates of
filing.

   Any  statement  contained  in a document  incorporated  by  reference
herein  shall be deemed to be modified  or  superseded  for  purposes of
this  Prospectus  to the  extent  that a  statement  contained  in  this
Prospectus or in any other  subsequently  filed  document  which also is
incorporated   by  reference   herein   modifies  or   supersedes   such
statement.  Any such  statement so modified or  superseded  shall not be
deemed,  except as so modified or  superseded,  to  constitute a part of
this Prospectus.

   The Company will provide,  without  charge,  to each person to whom a
copy of this  Prospectus is delivered,  upon written or oral request,  a
copy of any and all of the  information  that has been  incorporated  by
reference  in  this  Prospectus,  but  not  including  exhibits  to such
information  unless  such  exhibits  are  specifically  incorporated  by
reference  into  the  information  that  this  Prospectus  incorporates.
Requests for copies of such  information  should be directed to Krystyna
Marushak,  Investor Relations,  Noise Cancellation  Technologies,  Inc.,
One Dock Street,  Stamford,  Connecticut  06902,  telephone number (203)
961-0500, extension 3507.



<PAGE>

                              THE COMPANY

   Noise  Cancellation  Technologies,  Inc.  ("NCT"  or  the  "Company")
designs,  develops,   licenses,   produces  and  distributes  electronic
systems   for   Active   Wave   Management    including   systems   that
electronically  reduce noise and  vibration.  The Company's  systems are
designed for  integration  into a wide range of products  serving  major
markets  in  the  transportation,  manufacturing,  commercial,  consumer
products   and   communications   industries.   The  Company  has  begun
commercial  application  of its  technology  through a number of product
lines,  with 70 products currently being sold, including  NoiseBusterR
communications  headsets and NoiseBuster Extreme!TM consumer  headsets,
GekkoTMflat speakers, flat panel transducers ("FPTTM"), ClearSpeechTM,
microphones,  speakers  and  other  products,  adaptive  speech  filters
("ASF"), the ProActiveTM line of  industrial/commercial  active  noise
reduction  ("ANR")   headsets,   an  aviation  headset  for  pilots,  an
industrial  muffler  or  "silencer"  for  use  with  large  vacuums  and
blowers,  quieting  headsets  for  patient  use  in  magnetic  resonance
imaging ("MRI") machines, and an aircraft cabin quieting system.

   In early 1998,  the Company  introduced the GekkoTM flat speakers and
the ClearSpeechTM  corporate intranet telephone software (the "I-Phone")
which the Company  believes will have wide  application in the audio and
communications  industries.  As  part  of  its  product  line  expansion
plans,  the Company has  introduced  over 25 new products and associated
accessories during 1998.

   In keeping with the direction  established in late 1994,  during 1998
the Company  continued the practice of marketing its technology  through
licensing to third  parties for fees and  subsequent  royalties.  During
1998,  the  Company  has  entered  into  four  new  technology   license
agreements.  Also during 1998,  the Company  will  receive  royalties in
connection  with  the  cross  license  agreement  entered  into  by  the
Company,  Verity Group plc ("Verity") and New Transducers Ltd.  ("NXT"),
which will include sublicensing of technology to various sublicensees.

   In late 1995,  the Company  redefined its  corporate  mission to be a
worldwide  leader in the  advancement  and  commercialization  of Active
Wave  Management  technology.  Active Wave  Management is the electronic
and/or  mechanical  manipulation  of sound  or  signal  waves to  reduce
noise, improve  signal-to-noise  ratio and/or enhance sound quality. The
Company also revised its strategy,  expanding its technology development
into areas outside of traditional  active noise and vibration control in
order  to  address   markets  having  greater   opportunities   such  as
communications  and audio.  The acquisition of certain assets and all of
the  intellectual  property of Active Noise and Vibration  Technologies,
Inc.  ("ANVT")   broadened  the  Company's   portfolio  of  intellectual
property and removed  restrictions on the Company regarding licensing of
certain  jointly held patents (the  "Chaplin  Patents") to  unaffiliated
third  parties.   The  Company  can  now  license  the  Chaplin  Patents
directly to unaffiliated third parties,  which provides the Company with
a greater ability to earn  technology  licensing fees and royalties from
such patents.  Thus,  while the Company  continues to focus on products,
which the  Company  believes  will  generate  near term  revenue,  it is
increasing  its emphasis on  technology  licensing  fees and  royalties.
Further,  the Company is working  continuously  to lower the cost of its
products and improve their technological performance.

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

   From the  Company's  inception  through June 30, 1998,  approximately
25% of its  operating  revenues  have come from the sale of products and
31% of its operating  revenues have come from licensing of the Company's
technology,  while approximately 44% of its operating revenues have come
from engineering and development services.

   Active noise control offers many advantages over traditional  passive
methods of noise control such as conventional  mufflers,  ear protectors
and  acoustical  padding.  Active noise control  systems:  (i) generally
reduce only unwanted  noise and permit  desired sounds such as the human
voice,  music or warning tones to pass freely,  (ii) are more successful
in attenuating low frequency  noise,  (iii) contribute to energy savings
and provide other economic  benefits in various  applications,  and (iv)
generally are smaller and lighter.

   Active Wave  Management  is the  utilization  of active noise control
technology  and  certain  other   technologies   which  results  in  the
electronic  and  mechanical  manipulation  of sound or  signal  waves to
reduce  noise,  improve   signal-to-noise  ratio  and/or  enhance  sound
quality.

   NCT  believes  that it has a  significant  position  in  Active  Wave
Management  technology,  currently  holding 345 patents worldwide and an
extensive library of know-how and other unpatented technology.

   The  Company  has  entered  into  a  number  of   strategic   supply,
manufacturing  and marketing  alliances with leading global companies to
commercialize  its technology.  These strategic  alliances  historically
have  funded  a  substantial  portion  of  the  Company's  research  and
development,   and  provided  the  Company  with  reliable   sources  of
components,  manufacturing  expertise and capacity, as well as extensive
marketing   and   distribution   capabilities.    NCT   has   continuing
relationships with Walker  Manufacturing  Company ("Walker") (a division
of  Tennessee  Gas  Pipeline  Company,  a  wholly  owned  subsidiary  of
Tenneco,  Inc.),  AB Electrolux  ("Electrolux"),  Analog  Devices,  Inc.
("ADI"),  Ultra  Electronics  Ltd.  ("Ultra"),  The Charles Stark Draper
Laboratory, Inc. ("Draper"),  Applied Acoustic Research, L.L.C. ("AAR"),
Hoover  Universal,  Inc.  ("Hoover") and New Transducers,  Ltd. ("NXT"),
among  others,  in order to  penetrate  major  markets  more rapidly and
efficiently, while minimizing the Company's own capital expenditures.

   In March 1995, the Company and Ultra amended their teaming  agreement
and executed a licensing  and royalty  agreement  for $2.6 million and a
future royalty of 1 1/2% of sales commencing in 1998.

   On November  15,  1995,  the Company and Walker  executed a series of
related  agreements  (the  "Restructuring   Agreements")  regarding  the
Company's   commitment   to  help  fund  $4.0  million  of  product  and
technology  development  work  and the  transfer  of the  Company's  50%
interest in Walker Noise Cancellation  Technologies  ("WNCT") to Walker.
The Restructuring  Agreements provided for the transfer of the Company's
interest in WNCT (an equally owned  partnership  between  Walker and the
Company)  to  Walker,  the  elimination  of  the  Company's   previously
expensed  obligation to fund the  remaining  $2.4 million of product and
technology  development  work, the transfer to Walker of certain Company
owned tangible  assets related to the business of WNCT, the expansion of
certain existing  technology  licenses and the Company's  performance of
certain  research  and  development  activities  for Walker at  Walker's
expense.

   An important factor for the Company's  continuing  development is its
ability to recruit and retain key  personnel.  As of August 31, 1998 the
Company had 90 employees,  including 51 engineers  and technical  staff.
Among its engineering  staff and consultants are several  scientists and
inventors  that the Company  believes are preeminent in the active noise
and vibration control field worldwide.

   The  Company was  incorporated  in Nevada on May 24,  1983.  In April
1985,  the Company moved its  corporate  domicile to Florida and assumed
its present  name,  and in January  1987,  following  the  assumption of
control of the Company by the present  management,  it changed its state
of  incorporation  to Delaware.  NCT's executive  offices,  research and
product  development  facility  are located at 1025 West  Nursery  Road,
Suite 120, Linthicum,  Maryland 21090;  telephone number (410) 636-8700.
NCT  maintains  sales and  marketing  offices at One Dock Street,  Suite
300, Stamford,  Connecticut 06902;  telephone number (203) 961-0500. The
Company's   European   operations  are  conducted  through  its  product
development  and  marketing  facility in  Cambridge,  England.  NCT also
maintains a marketing facility in Tokyo, Japan.




<PAGE>

                  SUMMARY CONSOLIDATED FINANCIAL DATA

   The following  should be read in  conjunction  with the  consolidated
financial   statements   of  the  Company  and  the  notes  thereto  and
"Management's   Discussion  and  Analysis  of  Financial  Condition  and
Results   of   Operations",   incorporated   by   reference   into  this
Prospectus.  See  "Incorporation  of Certain  Documents by  Reference" -
Items (1),  (2) and (3).  Operating  results  for the period  ended June
30,  1998,  are not  necessarily  indicative  of the results that may be
expected for the year ending December 31, 1998.
<TABLE>
<CAPTION>

                                             (In Thousands of Dollars and Shares)
                                                    Years Ended December 31,
                              ----------------------------------------------------------------------
                                 1993           1994           1995         1996           1997
                              ----------------------------------------------------------------------
STATEMENTS OF OPERATIONS DATA:
REVENUES
<S>                           <C>            <C>            <C>          <C>            <C>   
 Product Sales                $  1,728       $  2,337       $  1,589     $  1,379       $  1,720
 Engineering and              
development services             3,598          4,335          2,297          547            368
 Technology licensing                                                               
fees and other                      60            452          6,580        1,238          3,630
                              --------       --------       --------     --------       --------
      Total revenues          $  5,386       $  7,124       $ 10,466     $  3,164       $  5,718
                              --------       --------       --------     --------       --------
COSTS AND EXPENSES:
 Cost of sales                $  1,309       $  4,073       $  1,579     $  1,586       $  2,271
 Cost of engineering and    
development services             2,803          4,193          2,340          250            316
 Selling, general and        
administrative                   7,231          9,281          5,416        4,890          5,217
 Research and development        7,963          9,522          4,776        6,974          6,235
 Interest (income)            
expense, net                      (311)          (580)           (49)          17          1,397 (4)
 Equity in net (income)
loss of unconsolidated       
affiliates                       3,582 (1   )   1,824            (80)          80              -
 Other expense, net                  -            718            552          192            130
                              --------       --------       --------     --------       --------  
      Total costs and                                                           
      expenses                $ 22,577       $ 29,031       $ 14,534     $ 13,989       $ 15,566
                              --------       --------       --------     --------       --------
 Net loss                     $(17,191) (1)  $(21,907)      $ (4,068)    $(10,825)      $ (9,848)
Less:
 Preferred stock          
dividend requirement                 -              -              -            -          1,623
 Accretion of difference
between carrying amount 
and redemption amount of
redeemable preferred stock           -              -              -            -            285
                              --------       --------       --------     --------       --------
Net (loss) attributable                                                        
to common stockholders        $(17,191) (1)  $(21,907)      $ (4,068)    $(10,825)      $(11,756)
                              ========       ========       ========     ========       ========
 Weighted average number
of common shares 
outstanding (2) -- basic
and diluted                     70,416         82,906         87,921      101,191        124,101
                              ========       ========       ========     ========       ========
 Basic and diluted net                                                             
loss per share                $  (0.24) (1)  $  (0.26)      $  (0.05)    $  (0.11)      $   (.09)
                              ========       ========       ========     ========       ========
</TABLE>

                

<PAGE>

                               (In Thousands of Dollars and Shares)
                                    Six Months Ended June 30,
                                           (Unaudited)
                               ------------------------------------
                                    1997 (4)             1998
                               ------------------------------------
STATEMENTS OF OPERATIONS DATA:
REVENUES
 Product Sales                    $    581              $  1,065
 Engineering and               
development services                   213                   149
 Technology licensing                                        
fees and other                       3,210                   346
                                  --------              --------
      Total revenues              $  4,004              $  1,560
                                  --------              --------
COSTS AND EXPENSES:
 Cost of sales                    $    505              $    869
 Cost of engineering and     
development services                   200                   128
 Selling, general and         
administrative                        2,251                4,454
 Research and development             3,012                3,297
 Interest (income) expense, net       1,467 (4)             (212)
 Other (income) / expense, net            -               (3,382)
                                  ---------             --------
      Total costs and expenses    $   7,435             $  5,154
                                  ---------             --------
 Net (loss)                       $  (3,431)            $ (3,594)
Less:
 Preferred stock               
dividend requirement                      -                1,690
 Accretion of difference
between carrying amount and 
redemption amount of
redeemable preferred stock                -                  483
 Net loss) attributable
to common stockholders            $  (3,431)            $ (5,767)
                                  =========             ========
 Weighted average number
of common shares outstanding --                              
basic and diluted                   117,332              135,968
                                  =========             ========
 Basic and diluted net                      
(loss) per share                  $   (0.03)            $  (0.04)
                                  =========             ========



<TABLE>
<CAPTION>
                                              December 31,
                          ------------------------------------------------------
                             1993       1994       1995      1996       1997
                          ------------------------------------------------------
BALANCE SHEET DATA:
<S>                          <C>          <C>           <C>          <C>          <C>    
 Total assets                $  29,541    $  12,371     $   9,583    $   5,881    $  17,361

 Total liabilities               6,301        6,903         2,699        3,271        2,984
 Long-term debt                      -            -           105            -            -
 Accumulated deficit           (46,873)     (68,780)      (72,848)     (83,673)     (93,521)
 Stockholders' equity (3)       23,239        5,468         6,884        2,610       14,377
 Working capital            
(deficiency)                    19,990          923         1,734       (1,312)      11,696
</TABLE>

                      
                          June 30, 1998
                           (unaudited)
                          -------------
BALANCE SHEET DATA:
 Total assets             $     14,776

 Total liabilities               2,382
 Long-term debt                    280
 Accumulated deficit           (97,115)
 Stockholders' equity(3)        12,114
 Working capital                 6,712



<PAGE>

(1)  In  connection  with the sale of  Common  Stock to  Tenneco  Automotive  in
     December  1993, the Company  recognized its share of cumulative  losses not
     previously recorded with respect to its joint venture with Walker amounting
     to approximately $3.6 million.

(2)  Does not include  shares  issuable upon the exercise of  outstanding  stock
     options, warrants and convertible Preferred Stock, since their effect would
     be antidilutive.

(3)  The Company has never declared nor paid cash dividends on its Common Stock.

(4)  Includes  interest  expenses of approximately  $1.4 million relating to the
     beneficial  conversion  feature on convertible  debt issued in 1997. If the
     $1.4 million  non-cash  charge had been allocated and recorded  during each
     quarter of 1997  instead of allocated  and recorded  entirely in the fourth
     quarter, the 1997 quarterly results would have been reported as follows:

<TABLE>
<CAPTION>
                                                           
                                 Three Months Ended           Six Months Ended           Nine Months Ended
                                   March 31, 1997               June 30, 1997            September 30, 1997
                                --------------------        ----------------------      --------------------
 (in thousands, except             As                          As                          As
   per share amounts)           Reported    Adjusted        Reported      Adjusted      Reported    Adjusted
                                --------    --------        --------      --------      --------    --------

<S>                             <C>         <C>             <C>           <C>           <C>         <C>     
Interest (income) expense       $      -    $    179        $     47      $  1,467      $     75    $  1,495

Net profit (loss)                    599         420          (2,011)       (3,431)       (5,178)     (6,598)

Weighted average number of                                          
common shares outstanding -                                                            
basic income per share           111,978     111,978         117,332       117,332       121,490     121,490

Net profit (loss) per 
common share                    $   0.01    $   0.00        $  (0.02)     $  (0.03)     $  (0.04)   $  (0.05)
</TABLE>

<PAGE>

                         RECENT DEVELOPMENTS

   On June 16, 1998, the Nasdaq Stock Market,  Inc.  ("Nasdaq") notified
the Company  that the  Company's  Common  Stock had failed to maintain a
closing  bid  price  of  $1.00  or more  for the  previous  thirty  (30)
consecutive  trade dates in accordance  with Nasdaq's  Marketplace  Rule
4450(a)(5).  Nasdaq also  notified the Company that no delisting  action
would be initiated  at that time and that the Company  would be provided
ninety  (90)   calendar  days  in  which  to  regain   compliance   with
Marketplace  Rule 4450(a)(5)  which would be achieved if the closing bid
price of the shares of the  Company's  Common Stock  equaled or exceeded
$1.00  for ten  (10)  consecutive  days  before  the end of  trading  on
September 14, 1998. In this regard,  Nasdaq  advised the Company that in
the event the  Company  was  unable to achieve  compliance,  it may seek
further  procedural   remedies.   The  Company  was  unable  to  achieve
compliance  by  September  14,  1998,  and on that  date  delivered  its
request for a hearing on the matter  together  with the requested fee to
Nasdaq's Hearings  Department.  Under Nasdaq's  procedures  delisting is
stayed pending the outcome of the hearing.

   Between  July 27,  1998 and August 4, 1998,  the  Company  issued and
sold  6,000  shares of its  Series D  Convertible  Preferred  Stock (the
"Series  D  Preferred  Stock")  in  a  private  placement   pursuant  to
Regulation D of the  Securities Act (the "1998  Preferred  Stock Private
Placement").  The Company  received  net  proceeds of $5.2  million from
the 1998  Preferred  Stock  Private  Placement.  Provided the  Company's
stockholders  have approved an increase in the  authorized  Common Stock
of the Company from  185,000,000  shares to  255,000,000  shares,  which
approval is being  sought by the  Company at its next Annual  Meeting of
Stockholders  to be held on October  20,  1998,  the Series D  Preferred
Stock is  convertible  into  shares  of the  Company's  Common  Stock in
accordance  with  the  conversion  formula  (the  "Series  D  Conversion
Formula") and other terms and conditions  set forth in the  subscription
agreements  relating to the 1998 Preferred Stock Private  Placement (the
"Series   D   Subscription   Agreements")   and   the   Certificate   of
Designations,  Preferences  and Rights of the Series D  Preferred  Stock
(the "Series D Certificate of  Designations")  establishing the Series D
Convertible  Preferred  Stock in accordance  with the  provisions of the
General  Corporation Law of the State of Delaware.  The conversion terms
of the Series D Preferred  Stock also provide that in no event shall the
conversion price as defined and used in the Series D Conversion  Formula
(the  "Conversion  Price")  be less than $0.50 per share and in no event
shall the Company be obligated to issue more than  12,000,000  shares of
its Common Stock in the aggregate in connection  with the  conversion of
the  6,000  shares  of  Series  D  Preferred  Stock  issued  in the 1998
Preferred  Stock  Private  Placement.  The Series D  Preferred  Stock is
also redeemable by the Company in cash or in the Company's  Common Stock
in accordance  with other terms and conditions set forth in the Series D
Subscription Agreements and the Series D Certificate of Designations.

   Between  July 27, 1998 and August 4, 1998,  NCT Audio issued and sold
60 shares of NCT Audio's Series A Convertible Preferred  Stock (the "NCT
Audio  Series A  Preferred  Stock") in a private  placement  pursuant to
Regulation  D of the  Securities  Act  (the  "1998  NCT  Audio  Series A
Preferred  Stock Private  Placement").  NCT Audio  received net proceeds
of $5.2  million  from the NCT Audio  Series A Preferred  Stock  Private
Placement.  Under the terms of the NCT  Audio   subscription agreements 
(the "Subscription  Agreements") , NCT Audio is  required  to file a 
registration  statement  (the "NCT  Audio
Registration  Statement")  covering  the  resale of all shares of common
stock of NCT Audio  issuable,  upon conversion of the NCT Audio Series A
Preferred  Stock  then  outstanding  by a date (the  "Filing  Deadline")
which is not  later  than  thirty  (30) days  after NCT Audio  becomes a
"reporting  company"  under  the  Securities  Exchange  Act of 1934,  as
amended  (the  "Exchange  Act").  The  shares  of  NCT  Audio  Series  A
Preferred  Stock  become  convertible  into  shares of NCT Audio  common
stock  at any  time  after  the  date NCT  Audio  becomes  a  "reporting
company" under the Exchange Act. The  conversion  terms of the NCT Audio
Series A Preferred  Stock also  provide that in the event that NCT Audio
has not become a "reporting  company" under the Exchange Act by December
31, 1998, or the NCT Audio Registration  Statement has not been declared
effective by the Commission by  December 31, 1998, the holders shall  be
entitled to exchange  each share of NCT Audio  Series A Preferred  Stock
for 100 shares of the Company's  Series D Preferred Stock and thereafter
shall be  entitled  to all  rights  and  privileges  of a holder  of the
Company's  Series D Preferred  Stock.  Accordingly,  if all 60 shares of
the NCT Audio Series A Preferred  Stock were  exchanged for 6,000 shares
of  the  Company's   Series  D  Preferred  Stock  up  to  an  additional
12,000,000  shares of the Company's  Common Stock would become  issuable
upon the  conversion  or redemption of such shares of Series D Preferred
Stock as described above.


<PAGE>

   On July 29, 1998,  the Company  initiated a plan to  repurchase  from
time to time up to 10 million  shares of the  Company's  Common Stock in
the open  market  pursuant  to Rule  10b-18  under the  Exchange  Act or
through  block  trades.  As of  September  23,  1998,  the  Company  had
repurchased  5,069,000 shares of the Company's Common Stock at per share
prices ranging from $0.5313 to $0.5938.

   On August 17, 1998, NCT Audio agreed to acquire  substantially all of
the business assets of Top Source  Automotive,  Inc. ("TSA"), a tier one
automotive  original equipment audio system supplier.  On June 11, 1998,
NCT Audio  paid a  non-refundable  deposit  of  $1,450,000  towards  the
purchase  price,  which is recorded as an investment  in  unconsolidated
subsidiaries.  The  total  purchase  price is  $10,000,000,  of which at
least $4.0  million  must be in cash and the  balance may be in the form
of a  12%  secured  promissory  note  due  March  31,  1999,  and  up to
$6,000,000 in possible future  contingent  payments to be paid in either
NCT  Audio  common  stock  or  cash,  at  the  seller's  election.   The
transaction  is subject to  approval of the  shareholders  of Top Source
Technologies,  Inc. ("TST"),  TSA's parent company. On July 31,1998, NCT
Audio paid TST  $2,050,000,  to be held in escrow  with  securities  and
documentation  necessary to represent beneficial ownership of 35% of the
total  equity  rights  and  interests  in TSA,  until such time as TST's
stockholders  approve the sale of the business  assets of TSA. Upon such
TST stockholder  approval,  such $2,050,000 will be delivered to TSA and
such  securities and  documentation  will be delivered to NCT Audio.  If
such approval is not obtained,  the  $2,050,000  will be returned to NCT
Audio and the  securities  and  documentation  will be  returned to TSA.
TST's next stockholder meeting is scheduled for November 5, 1998.

   On August 17,  1998,  NCT Audio agreed to acquire all of the members'
interest  in Phase  Audio  LLC dba  Precision  Power,  Inc.  ("PPI"),  a
supplier of custom  automotive  audio  systems.  In  consideration,  the
members of PPI shall  receive  registered  shares of NCT Audio's  common
stock having an aggregate  value of $2,000,000  as calculated  using the
offering  price  of such  stock  in an  initial  public  offering  being
considered by NCT Audio as a means of raising acquisition  funding.  NCT
Audio also agreed to retire $8.5 million of PPI debt.  This  acquisition
is subject to NCT Audio's  receipt of the  necessary  financing to close
the  transaction.  In addition to the above, on June 17, 1998, NCT Audio
provided a working  capital loan in the amount of $500,000 to PPI, which
is evidenced by a demand  promissory note. On August 18,1998,  NCT Audio
provided an additional  working capital loan in the amount of $1,000,000
to PPI,  which  is also  evidenced  by a  demand  promissory  note.  The
unpaid  principal  balance of these notes bear  interest at a rate equal
to the prime lending rate plus one percent (1.00%).

   On  September  4, 1998,  the Company  acquired  approximately  ninety
percent  (90%) of the issued and  outstanding  common  stock of Advancel
Logic Corporation  ("Advancel")  pursuant to a stock purchase  agreement
dated as of August 21, 1998 (the "Stock Purchase  Agreement")  among the
Company,  Advancel and certain  shareholders  of Advancel (the "Advancel
Shareholders").  The  consideration  for the acquisition of the Advancel
common stock  consisted of an initial payment of $1.0 million payable by
the  delivery  of  1,786,991  shares  of the  Company's  authorized  and
unissued  Common  Stock  which  shares  are to be  registered  under the
registration  statement  containing this Prospectus together with future
payments,  payable  in cash or in  Common  Stock of the  Company  at the
election  of  the  Advancel  Shareholders  (individually,   an  "earnout
payment" and collectively,  the "earnout  payments") based on Advancel's
earnings before  interest,  taxes,  depreciation  and  amortization  (as
defined in the Stock Purchase  Agreement) for each of the calendar years
1999,  2000,  2001  and  2002  (individually,   an  "earnout  year"  and
collectively,  the "earnout years").  While each earnout payment may not
be less than $250,000 in any earnout year,  there is no maximum  earnout
payment  for  any  earnout  year  or  for  all  earnout   years  in  the
aggregate.  To determine  the number of shares of the  Company's  Common
Stock  issuable in  connection  with an earnout  payment,  each  earnout
payment is to be calculated  using the average of the closing  prices of
the  Company's  Common Stock for each of the twenty (20)  business  days
following the 21st day after the release of Advancel's  audited year-end
financials  for an earnout  year.  At that time,  Advancel  Shareholders
will elect to receive  payment in cash or Common  Stock of the  Company.
In the  event  that  the  Company  is  unable  to  cause a  registration
statement  covering the resale of such 1,786,991 shares of the Company's
Common  Stock  to be  declared  effective  by  March  15,  1999,  and to
maintain such registration  statement effective for at least thirty (30)
days, each Advancel  Shareholder  shall have the right,  until April 15,
1999, to have the Company redeem up to one-third of the initial  payment
shares acquired by such Advancel  Shareholder by paying in cash therefor
a sum  calculated  by using the formula used to determine  the number of
shares of the  Company's  Common Stock to be delivered in payment of the
initial payment of $1.0 million.





<PAGE>

                              THE OFFERING

   This  offering  consists of the resale of 1,786,991  shares of Common
Stock  which were issued by the  Company in a private  placement  exempt
from  registration  under the  Securities  Act pursuant to  Regulation D
thereunder on September 4, 1998.

   All of the  foregoing  shares of Common Stock may be offered for sale
by the holders  thereof (see "Selling  Stockholders").  The Company will
not receive any of the  proceeds  from the sale of such shares of Common
Stock.



                              RISK FACTORS

   The shares of Common Stock  offered  hereby  represent a  speculative
investment  and entail  elements  of risk.  The  following  factors,  in
addition to the other information  included or incorporated by reference
herein,  should be carefully  considered  before any decision is made to
purchase any of the shares of Common Stock offered hereby.

   RISKS  ASSOCIATED WITH  FORWARD-LOOKING  STATEMENTS  INCLUDED IN THIS
PROSPECTUS.   Statements   in  this   Prospectus   and   the   documents
incorporated  herein by  reference  which are not  historical  facts are
forward-looking  statements under  provisions of the Private  Securities
Litigation Reform Act of 1995. All  forward-looking  statements  involve
risks and  uncertainties.  The Company  wishes to caution  readers  that
the  following  important  factors,  among  others,  in some  cases have
affected,  and in the future could affect,  the Company's actual results
and could  cause its actual  results in fiscal 1998 and beyond to differ
materially from those expressed in any  forward-looking  statements made
by, or on behalf of, the Company.

   Important   factors  that  could  cause  actual   results  to  differ
materially  include  but are not  limited to the  Company's  ability to:
achieve  profitability;  maintain  the listing of the  Company's  Common
Stock on the  NASDAQ  National  Market  System;  achieve  a  competitive
position in design, development,  licensing, production and distribution
of  electronic  systems  for  Active  Wave  Management;  produce  a cost
effective  product that will gain  acceptance  in relevant  consumer and
other product markets; increase revenues from products;  realize funding
from  technology   licensing  fees,   royalties,   product  sales,   and
engineering  and development  revenues to sustain the Company's  current
level of operation;  timely introduce new products; continue its current
level of  operations to support the fees  associated  with the Company's
patent  portfolio;   maintain  satisfactory   relations  with  its  five
customers  that  accounted  for 71% of the  Company's  revenues in 1997;
attract and retain key personnel;  prevent invalidation,  abandonment or
expiration  of patents  owned or  licensed by the Company and expand its
patent holdings to diminish reliance on core patents;  have its products
utilized beyond noise  attenuation and control;  maintain and expand its
strategic alliances; and protect Company know-how,  inventions and other
secret or unprotected intellectual property.

   Although the Company  believes that its  assumptions  underlying  the
forward-looking  statements are reasonable, any of the assumptions could
prove  inaccurate  and,  therefore,  there can be no assurance  that the
forward-looking   statements   included  in  this   Prospectus  and  the
documents  incorporated  herein by reference  will prove to be accurate.
In   light   of   the   significant   uncertainties   inherent   in  the
forward-looking   statements   included  herein  and  in  the  documents
incorporated  herein by  reference,  the  inclusion of such  information
should not be regarded as a  representation  by the Company or any other
person that the objectives and plans of the Company will be achieved.


<PAGE>

   CURRENT FINANCIAL CONDITION;  CASH POSITION;  CONDITIONAL ADEQUACY OF
CURRENTLY  AVAILABLE  FUNDS  TO  SUSTAIN  COMPANY;   POSSIBLE  NEED  FOR
ADDITIONAL  FINANCING.  Cash  and  cash  equivalents  amounted  to  $5.2
million at June 30, 1998.  Management  believes that currently available
funds may not be  sufficient  to  sustain  the  Company  for the next 12
months.  Such  funds  consist  of  available  cash  and  cash  from  the
exercise of warrants and options,  the funding  derived from  technology
licensing   fees,   royalties  and  product   sales,   and   engineering
development  revenue.  As noted in "Subsequent  Events" in the Company's
Quarterly  Report on Form 10-Q for the period ended June 30,  1998,  and
under "Recent  Developments"  above,  the Company  received $5.2 million
net proceeds from the 1998 Series D Preferred  Stock Private  Placement.
The  Company's  subsidiary,  NCT Audio,  also  received $5.2 million net
proceeds  from the 1998 NCT  Audio  Series  A  Preferred  Stock  Private
Placement.  Continuation  as a going concern is dependent upon the level
of realization of funding from  technology  licensing fees and royalties
and product sales and engineering and development  revenue, all of which
are presently  uncertain.  In the event that  technology  licensing fees
and royalties,  product sales,  and engineering and development  revenue
are  not  realized  as  planned,  then  management  believes  additional
working  capital  financing must be obtained.  There is no assurance any
such financing is or would become available.

   There  can  be  no  assurance   that  funding  will  be  provided  by
technology  license fees,  royalties  and product sales and  engineering
and  development  revenue.  In that  event,  the  Company  would have to
substantially  cut back its level of operations.  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.

   NO DIVIDENDS.  The Company has never  declared nor paid  dividends on
its common stock and has no present intention to do so.

   GOING  CONCERN   UNCERTAINTY   PARAGRAPH  IN  REPORT  OF  INDEPENDENT
AUDITORS.  The Company  expects to continue  as a going  concern,  which
contemplates  continuity  of  operations,   realization  of  assets  and
satisfaction  of liabilities in the ordinary  course of business and its
financial  statements  have been prepared on that basis.  However,  this
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 as described in "Current
Financial  Condition;  Cash Position;  Conditional Adequacy of Currently
Available  Funds  to  Sustain  Company;  Possible  Need  for  Additional
Financing" above.

   The  Company's  independent  auditors  issued  their  report  on  the
Company's  consolidated  financial  statements  as of and for  the  year
ended   December  31,  1997.   Their  report   contains  an  explanatory
paragraph,  which discloses certain factors, which are described in Note
1 to the  financial  statements  covered by the report.  This  paragraph
notes that such  factors  raise  substantial  doubt as to the  Company's
ability  to  continue  as  a  going   concern.   See  "Experts"   below.
Prospective  investors  are  urged  to read  carefully  the  independent
auditors'  report as well as the  consolidated  financial  statements of
the  Company and the notes  thereto,  which are  incorporated  herein by
reference  to the  Company's  Annual  Report  on Form  10-K for the year
ended  December 31, 1997,  (including  Amendment  No. 1 thereto filed on
April 30, 1998, and Amendment No. 2 thereto filed on May 4, 1998).

   HISTORY OF  OPERATING  LOSSES AND  ACCUMULATED  DEFICIT.  The Company
incurred  a net loss of $9.8  million  for the year ended  December  31,
1997,  and a loss of $3.6  million  for the six  months  ended  June 30,
1998.  The  Company's  accumulated  deficit  at June 30,  1998 was $97.1
million,  attributable  in  substantial  part to the costs of developing
its  proprietary  technology.   To  achieve  profitability,   NCT  must,
independently   and  with  strategic   allies,   successfully   develop,
manufacture,  introduce and market its products in commercial quantities
and  receive  fees  and  royalties   from   licensing  its   proprietary
technology.


<PAGE>

   LIMITED  REVENUES.  Although  the Company  has  engaged in  marketing
activities  with regard to the sale or licensing of  electronic  systems
for Active Wave Management including systems that electronically  reduce
noise  and  vibration  based  upon  prototypes  of  such  systems,   its
operating  revenues from  inception in April 1986 through June 30, 1998,
have  been  limited,  aggregating  $11.9  million  from the sale of such
systems,  $14.9  million from the  licensing of  technology  relating to
such systems and $21.5 million from the  performance of engineering  and
development  services,  respectively.  Although  the  Company  has begun
commercial  sales of active noise  attenuation  and other  products in a
limited number of applications,  significant further development will be
necessary before many of the Company's  potential  products will achieve
expected commercial end-use applications.

   POSSIBLE  FUTURE  DILUTION FROM EXERCISE OF OUTSTANDING  WARRANTS AND
OPTIONS AND  CONVERSION OF CONVERTIBLE  SECURITIES.  On October 6, 1992,
the Company  adopted a stock option plan (the "1992 Plan")  covering 6.0
million  shares of the  Company's  Common  Stock and  providing  for the
grant of options to purchase  Common  Stock of the Company and awards of
restricted  common stock to  employees,  officers  and  directors of the
Company.  The 1992 Plan was  approved  by the  stockholders  at the 1993
Annual Meeting of  Stockholders  following which said 6.0 million shares
were  registered  under the  Securities  Act. An  amendment  to the 1992
Plan adopted by the Option  Committee on November 8, 1995,  and approved
by the  stockholders  at the 1996 Annual  Meeting of  Stockholders  (the
"1996 Annual  Meeting"),  increased the number of shares of Common Stock
covered  by the  1992  Plan to 10.0  million  shares  and  added  active
consultants  to the Company as persons who are  eligible to  participate
under the 1992 Plan.  The Company has reserved  10.0  million  shares of
Common Stock for issuance  upon the  exercise of options  granted  under
the  1992  Plan and for  issuance  upon the  grant of  restricted  stock
awards under the 1992 Plan. All of such shares are registered  under the
Securities  Act. As of June 30,  1998,  the Company has granted  options
to  purchase  19,833,375  shares of Common  Stock under the 1992 Plan of
which,  6,740,875  are  currently  exercisable  and 962,500  will become
exercisable  in  increments  through  October  6,  2001.  As of June 30,
1998,  the Company has also granted  95,000 shares of  restricted  stock
under the 1992  Plan.  On  January  15,  1998,  the  Board of  Directors
further  amended  the 1992  Plan  (the  "1998  Amendment"),  subject  to
stockholder  approval,  increasing  the number of shares of Common Stock
covered  by the  1992  Plan  to  30.0  million  shares,  adding  outside
directors  of the  Company's  Board  of  Directors  as  persons  who are
eligible to  participate  under the 1992 Plan,  deleting the formula for
grants of awards of  restricted  Common  Stock and  options to  purchase
Common Stock to outside  directors and providing for the  administration
of the  1992  Plan  by the  Board  of  Directors  of  the  Company  or a
committee  appointed  by the Board of Directors  consisting  of at least
two  outside  directors.  The  Company  plans  to  register  all of such
additional  20.0  million  shares  under the  Securities  Act  following
stockholder  approval of the 1998  Amendment.  As of June 30, 1998,  the
Company  has  granted  options to  purchase  5,226,000  shares of Common
Stock,  which will become  exercisable upon stockholder  approval of the
1998 Amendment,  and options to purchase an additional  6,904,000 shares
of Common  Stock  which will become  exercisable  in  increments  on the
later of the date of  stockholder  approval  of the 1998  Amendment  and
other dates  between  such date and  February  14,  2002,  provided  the
optionee is then employed by or rendering services to the Company.

   On November  15,  1994,  the  Company  adopted and on May 8, 1995 and
November  8, 1995  amended  the Noise  Cancellation  Technologies,  Inc.
Option Plan for Certain  Directors (the "Directors  Plan"),  pursuant to
which  options to purchase  in the  aggregate  821,000  shares of Common
Stock were granted to two directors of the Company.  The Directors  Plan
was approved by the  stockholders  at the Company's  1995 Annual Meeting
of  Stockholders  as to options to  purchase  in the  aggregate  725,000
shares of Common Stock.  An amendment to the  Directors  Plan adopted by
the  Board of  Directors  on  November  8,  1995,  and  approved  by the
stockholders at the 1996 Annual Meeting,  increased the number of shares
of Common Stock  covered by the Plan to 821,000  shares and made certain
minor  changes  concerning  the Plan's  administration.  The Company has
reserved  821,000  shares of Common Stock for issuance upon the exercise
of the options  granted under the Directors Plan and has registered such
821,000  shares  under the  Securities  Act.  As of June 30,  1998,  the
Company has granted  options to purchase  746,000 shares of Common Stock
which are currently exercisable under the Directors Plan.


<PAGE>

   As of June 30,  1998,  the Company  has  reserved  378,894  shares of
Common  Stock for  issuance  upon the  exercise of warrants  and options
granted  outside the 1992 Plan and the Directors  Plan which the Company
has registered  under the Securities  Act. The Company has also reserved
1,305,500  shares for issuance upon the exercise of warrants granted (i)
to  an  investor  in  an  early  1997  private  placement   pursuant  to
Regulation S under the Securities Act (the "Investor Warrant"); and (ii) in
partial  consideration  for services  rendered by three placement agents
in  connection  with  the  1997  Preferred   Stock  Private   Placement,
described below, by one financial  consultant in connection with another
financing  completed by the Company and by one  consultant in connection
with  the  Companys  efforts  to  complete  development  and  licensing
agreements  with a large  European  company;  and  has reserved an  additional
100,000 shares for issuance upon the exercise of options  granted to two
non-employee  directors of the  Company,  subject to the approval of the
Company's stockholders

   On September 23, 1998,  the weighted  average  exercise price for all
currently exercisable and outstanding warrants and options was  $0.64.

   Between  October 10, 1997 and December 4, 1997, NCT Audio raised $4.0
million  of  equity  capital  by means of a private  placement  of 2,145
shares  of  its  common  stock   pursuant  to  Regulation  D  under  the
Securities  Act (the  "NCT  Audio  Financing").  Under  the terms of the
subscription  agreements  for the sale and  purchase of NCT Audio common
stock  entered  into in  connection  with this  private  placement,  the
purchasers  are  granted  the  right  commencing  90  days  after  their
purchase of NCT Audio  common  stock to exchange  such common  stock for
the Company's  Common Stock at an exchange  ratio which will provide the
purchasers  a value in the  Company's  Common  Stock equal to the amount
paid by the purchasers for NCT Audio common stock in accordance  with an
agreement  between  such  purchasers  and  the  Company.   However,  the
purchasers  may not  exercise  this  exchange  right  if a  registration
statement  of NCT  Audio for an  initial  public  offering  of NCT Audio
common  stock is filed  with the SEC within 90 days of the  delivery  of
the  purchase  price for the NCT Audio  common  stock by the  purchasers
thereof,  but  such  exchange  right  is  renewed  if such  registration
statement does not become  effective within 180 days after such purchase
price  delivery.  Purchasers  of $1.7  million in the  aggregate  of NCT
Audio  common  stock have agreed to extend such  periods from 90 days to
150  days  and  from  180  days  to  240  days,  respectively.  No  such
registration  statement  was filed by the  Company  within  said 150 day
period.  The  Company  is under no  obligation  to  register  any of the
shares of the  Company's  Common Stock which may be issued in connection
with the exercise of the foregoing  exchange  right although such Common
Stock of the Company may be sold  pursuant  to an  applicable  exemption
from  registration.  Because the exchange  ratio will be  determined  by
using  80% of the  average  closing  bid price of the  Company's  Common
Stock over the five day trading period  immediately  preceding such date
the  exchange  right is  exercised,  it is not  possible  to  accurately
determine  the maximum  number of shares of the  Company's  Common Stock
that would be issued if all of the  purchasers of NCT Audio common stock
elected  to  fully  exercise  their  exchange  rights.  If  all  of  the
purchasers  of the $4.0  million in the  aggregate  of NCT Audio  common
stock purchased  pursuant to the foregoing  private  placements,  become
entitled to exercise  such  exchange  right and do so at a time when the
average  closing bid price of the  Company's  Common  Stock for the five
trading days immediately  preceding the date on which the exchange right
was  exercised was the same as it was on September 23, 1998 ($0.5313 per
share) the Company would be required to issue 9.3 million  shares of its
Common  Stock.  No assurance can be made that the price of the Company's
Common Stock will not be  significantly  lower than $0.5313 per share in
which event a significant  number of additional  shares of the Company's
Common Stock would be issued in connection with such exchange.

   Between  November 3, 1997 and  December  11, 1997 the Company  issued
and sold 13,250 shares of its Series C Convertible  Preferred Stock (the
"Preferred  Stock") in a private  placement  pursuant to Regulation D of
the Securities Act (the "1997 Preferred Stock Private  Placement").  The
Preferred  Stock is  convertible  into  shares of the  Company's  Common
Stock  in  accordance  with  the  conversion  formula  (the  "Conversion
Formula") and other terms and conditions  set forth in the  subscription
agreements  relating to the 1997 Preferred Stock Private Placement.  The
conversion  terms of the  Preferred  Stock also provide that in no event
shall the  average  closing  bid  price  referred  to in the  Conversion
Formula be less than  $0.625 per share and in no event shall the Company
be obligated to issue more than 26.0 million  shares of its Common Stock
in the  aggregate in  connection  with the  conversion  of the Preferred
Stock.  The  Preferred  Stock is also  redeemable by the Company in cash
or in the  Company's  Common  Stock in  accordance  with other terms and
conditions  set  forth  in such  subscription  agreements.  Because  the
calculations   required  to  determine  the  number  of  shares  of  the
Company's  Common Stock to be issued upon  conversion  or  redemption of
the Preferred  Stock will be based upon the length of time the Preferred
Stock  is held as well as the  lesser  of (x)  120% of the  five (5) day
average  closing  bid price of  Common  Stock  immediately  prior to the
closing date of the purchase of the Preferred  Stock being  converted or
(y) 20%  below  the five (5) day  average  closing  bid  price of Common

<PAGE>

Stock  immediately  prior  to the  conversion  date  thereof,  it is not
possible to  accurately  determine  the maximum  number of shares of the
Company's  Common Stock that would be issued upon any such conversion or
redemption.  All 13,250 shares of the  Preferred  Stock were issued when
the average  closing  bid price of the  Company's  Common  Stock for the
five trading  days  immediately  preceding  issuance was higher than the
minimum  conversion  price  ($0.625).  Therefore  under  the  Conversion
Formula if all 13,250  shares of the Preferred  Stock were  converted or
redeemed  one  year  following  the  issuance  thereof  and the  average
closing bid price of the  Company's  Common  Stock for the five  trading
days  immediately  preceding the conversion or redemption date was equal
to or below $0.625,  the Company would be required to issue 27.6 million
shares of its Common Stock except that under the terms of  conversion as
set  forth in the  subscription  agreements  and in the  Certificate  of
Designations  Preferences and Rights of the Preferred Stock establishing
the  Preferred  Stock in accordance  with the  provisions of the General
Corporation  Law of the State of Delaware,  the Company is not obligated
to issue  more  than 26.0  million  shares  of its  Common  Stock in the
aggregate in connection with the conversion of the Preferred Stock.

   On June 10, 1998, the Board of Directors of the Company  approved and
declared  advisable an amendment to the Company's  Restated  Certificate
of  Incorporation  to  increase  the  number of shares of Common  Stock,
which the Company  shall be  authorized  to issue by  70,000,000  shares
from  185,000,000 to  255,000,000  shares subject to the approval of the
Company's  stockholders.  Such  approval will be sought at the Company's
next  Annual  Meeting of  Stockholders  on  October  20,  1998.  Of such
additional  shares of Common Stock,  20,000,000  shares will be reserved
for issuance under the 1998 Amendment to the 1992 Plan described  above,
stockholder  approval  for which will also be sought at the  October 20,
1998 Annual  Meeting.  The  remaining  50,000,000 of such shares (or all
70,000,000  of such shares if the  stockholders  do not approve the 1992
Amendment)  will  be  available  for  acquisitions,  public  or  private
financings   involving   Common  Stock  or  preferred   stock  or  other
securities  convertible  into Common Stock,  stock splits and dividends,
other present and future employee  benefit  programs and other corporate
purposes.

   Between July 27,1998 and August 4, 1998,  the Company issued and sold
6,000  shares  of its  Series D  Preferred  Stock in the 1998  Preferred
Stock  Private  Placement.  Provided  the  Company's  stockholders  have
approved an increase in the authorized  Common Stock of the Company from
185,000,000  to  255,000,000  shares,  which approval is being sought by
the Company at its next  Annual  Meeting of  Stockholders  to be held on
October 20,  1998,  the Series D  Preferred  Stock is  convertible  into
shares of the  Company's  Common Stock in  accordance  with the Series D
Conversion  Formula  and  other  terms and  conditions  set forth in the
Series  D  Subscription  Agreements  and the  Series  D  Certificate  of
Designations.  The  conversion  terms of the  Series D  Preferred  Stock
also provide that in no event shall the Conversion  Price as defined and
used in the  Series D  Conversion  Formula  be less than $0.50 per share
and in no event  shall  the  Company  be  obligated  to issue  more than
12,000,000  shares of its Common Stock in the  aggregate  in  connection
with the  conversion  of the 6,000  shares of Series D  Preferred  Stock
issued  in the  1998  Preferred  Stock  Private  Placement  nor will the
Company be obligated to issue more than 12,000,000  additional shares of
Common Stock in the aggregate in connection  with the  conversion of the
6,000,000  shares of Series D Preferred  Stock  issuable in exchange for
NCT Audio Series A Preferred Stock under the circumstances  described in
the paragraph  below.  The Series D Preferred  Stock is also  redeemable
by the Company in cash or in the  Company's  Common Stock in  accordance
with other terms and conditions set forth  in  the Series D Subscription
Agreements and the Series D Certificate of Designations.   Because   the
calculations   required  to  determine  the  number  of  shares  of  the
Company's  Common Stock to be issued upon  conversion  or  redemption of
the Series D  Preferred  Stock will be based upon the length of time the
Series  D  Preferred  Stock  is  held  as  well  as the  greater  of the
Conversion  Price (which is determined by the five  consecutive  trading
day average closing bid price of Common Stock  immediately  prior to the
conversion date of the Series D Preferred Stock being converted  subject
to adjustment) or $0.50, it is not possible to accurately  determine the
maximum  number of shares of the  Company's  Common  Stock that would be
issued  upon any such  conversion  or  redemption.  However,  under  the
terms  of  conversion  as set  forth  in the  Series  D  Certificate  of
Designations,   the  Company  is  not   obligated  to  issue  more  than
24,000,000  shares of its Common Stock in the  aggregate  in  connection
with the  conversion  of the Series D  Preferred  Stock as  contemplated
under this and the paragraph below.


<PAGE>

   Between  July 27, 1998 and August 4, 1998,  NCT Audio issued and sold
60 shares of NCT Audio  Series A  Preferred  Stock in the 1998 NCT Audio
Series A Preferred Stock Private  Placement.  Under the terms of the NCT
Audio  Subscription  Agreements,  NCT Audio is  required to file the NCT
Audio  Registration  Statement  covering  the  resale  of all  shares of
common stock of NCT Audio  issuable,  upon  conversion  of the NCT Audio
Series A Preferred  Stock then  outstanding by the Filing Deadline which
is not later than thirty (30) days after NCT Audio  becomes a "reporting
company"  under the  Exchange  Act.  The  shares  of NCT Audio  Series A
Preferred  Stock  become  convertible  into  shares of NCT Audio  common
stock  at any  time  after  the  date NCT  Audio  becomes  a  "reporting
company" under the Exchange Act. The  conversion  terms of the NCT Audio
Series A Preferred  Stock also  provide that in the event that NCT Audio
has not become a "reporting  company" under the Exchange Act by December
31, 1998, or the NCT Audio Registration  Statement has not been declared
effective by the  Commission by December 31, 1998,  the holders shall be
entitled to exchange  each share of NCT Audio  Series A Preferred  Stock
for 100 shares of the  Company's  Series D Convertible  Preferred  Stock
and  thereafter  shall be  entitled  to all rights and  privileges  of a
holder of the Company's  Series D Preferred Stock.  Accordingly,  if all
60 shares of the NCT Audio Series A Preferred  Stock were  exchanged for
6,000 shares of the Company's  Series D Convertible  Preferred  Stock up
to an additional  12,000,000  shares of the Company's Common Stock would
become  issuable  upon the  conversion  or  redemption of such shares of
Series D Convertible Preferred Stock as described above.

   The  possibility of the sale of the shares of Common Stock  described
in the preceding  paragraphs of this "risk factor", all of which (except
the shares  issuable  upon the exercise of the Investor  Warrant and the
shares  described in the paragraph  relating to the NCT Audio Financing)
the Company  plans to register  under the  Securities  Act to the extent
they  are  not  now  so  registered  or  exempt  from  the  registration
requirements  of the  Securities  Act, may  adversely  affect the market
price of the Company's Common Stock.

   MATERIAL   DEPENDENCE  UPON  CERTAIN  PATENT  AND  TRADEMARK  RIGHTS;
UNCERTAIN  PROPRIETARY  PROTECTION.  No assurance can be given as to the
range or degree of  protection  any  patent or  trademark  issued to, or
licensed  by, the Company will afford or that such  patents,  trademarks
or licenses will provide protection that has commercial  significance or
will provide  competitive  advantages  for the  Company's  products.  No
assurance can be given that the Company's  owned or licensed  patents or
trademarks  will afford  protection  against  competitors  with  similar
technology  or  trademarks,  or that  others  will  not  obtain  patents
claiming  aspects  similar to those  covered by the  Company's  owned or
licensed  patents or patent  applications.  No assurance exists that the
Company's   owned  or  licensed   patents  or  trademarks  will  not  be
challenged by third  parties,  invalidated,  rendered  unenforceable  or
designed  around.  Furthermore,  there  can  be no  assurance  that  any
pending patent or trademark  applications or  applications  filed in the
future  will  result  in the  issuance  of a patent  or  trademark.  The
invalidation  or expiration  of patents or trademarks  owned or licensed
by  the  Company  and  believed  by  the  Company  to  be   commercially
significant could permit increased  competition,  with potential adverse
effects  on  the  Company  and  its  business  prospects.  Although  the
Company intends to file for extensions to certain  patents,  the Company
can make no  assurances  that  the U.S.  or  foreign  government  patent
authorities will grant such extensions.

   The Company has conducted only limited patent and trademark  searches
and no  assurances  can be given that patents or trademarks do not exist
or will not be issued in the future  that  would have an adverse  effect
on the  Company's  ability  to  market  its  products  or  maintain  its
competitive   position  with  respect  to  its   products.   Substantial
resources  may be  required  to obtain and defend  patent and  trademark
rights to protect  present and future  technology  and trademarks of the
Company.


<PAGE>

   An  interference  proceeding was initiated with respect to one of the
Company's  patent  applications,  which  was  dismissed  by the Board of
Patent Appeals and  Interferences  in July 1997.  There has also been an
inquiry  regarding  the  product  design  configuration  of  one  of the
Company's  products as it relates to a patent  held by another  company.
Another  competitor has implied that a possible  conflict exists between
the  Company's  application  of certain of its  technology  and a patent
recently  allowed to the  competitor  and that the Company's use of what
the Company  believes  is a generic  phrase  conflicts  with a trademark
which the  competitor  has applied for. The Company  believes  that such
claims  and  inquiry  are  without  merit and  intends  to  oppose  them
vigorously.  Moreover,  if such  inquiry  proves to have any merit,  the
Company believes it could,  without significant cost, modify its product
design  configuration so as to avoid infringement.  The Company does not
believe  that any  damages  or costs  it may  incur as a result  of such
claims or inquiry would have a material  adverse effect on the financial
condition of the Company.

   The  Company's  policy is to enter  into  confidentiality  agreements
with  all  of  its  executive  officers,  key  technical  personnel  and
advisors,   but  no  assurances  can  be  made  that  Company  know-how,
inventions  and other secret or unprotected  intellectual  property will
not be disclosed to third parties by such persons.

   RAPID  TECHNOLOGICAL  CHANGE.  Active Wave  Management is an evolving
industry,  characterized  by rapid  technological  change.  The  Company
intends to engage  continually in research and  development  activities,
including the  improvement  of current  products and  development of new
products.  There can be no  assurance,  however,  that active  noise and
vibration  attenuation or other  applications  of Active Wave Management
will be accepted by the commercial  marketplace,  that the  introduction
of new products or the  development of new  technologies  by others will
not render the Company's products obsolete or unmarketable,  or that the
Company will be able to hire and retain adequate  research  personnel or
be able to finance research activities in this regard.

   RELIANCE  UPON   STRATEGIC   ALLIANCES;   COMMERCIAL   ACCEPTANCE  OF
END-PRODUCTS.  The Company and certain of its wholly owned  subsidiaries
have entered into agreements to establish  strategic  alliances  related
to the design, development,  manufacture,  marketing and distribution of
its  electronic  systems and products  containing  such  systems.  These
agreements  generally  provide that the Company  license its  technology
and  contribute a nominal  amount of initial  capital and that the other
party  provide   substantially   all  of  the  funding  to  support  the
alliance.  In  exchange  for this  funding,  the other  party  generally
receives a  preference  in the  distribution  of cash and/or  profits or
royalties from these alliances  until such time as the support  funding,
plus an "interest" factor in some instances,  is recovered.  At June 30,
1998,  there  were  no  preferred  distributions  due to  joint  venture
partners from future profits of the joint ventures.

   The Company conducts its marketing  efforts  primarily by identifying
specific market segments for active noise and vibration  attenuation and
other  Active  Wave  Management  products  and,  thereafter,  seeking to
establish  strategic  alliances  with major  domestic and  international
business  concerns to support  product  development,  and to manufacture
and  distribute  products  for  such  market  segments.   The  Company's
ability  to  enter  into  new  markets  is  materially   dependent  upon
determinations  by  such  concerns  that  the  Company's   products  are
suitable for use in their  respective  end-products,  and on the ability
and   willingness   of  those   concerns   to   market   such   products
successfully.  During 1995,  1996 and 1997 active headset  product sales
did not  increase  at the rate  previously  anticipated  and  orders for
active  vehicular  mufflers,  kitchen  exhaust  and  HVAC  fan  quieting
systems and  industrial  headsets were not received at volumes or within
time frames that had been anticipated by the Company.

   The  Company  arranges  for  the  supply  of  actuators,   integrated
circuits and other electronic  components for its active control systems
through alliances with  manufacturers the Company believes will serve as
dependable  sources of supply.  The  Company  makes no  assurances  that
these  concerns  will meet the Company's  and its  customers'  needs for
quality components in sufficient  quantities at commercially  reasonable
prices.


<PAGE>

   CUMULATIVE  LOSSES IN JOINT  VENTURES.  When the  Company's  share of
cumulative  losses in a strategic  alliance  exceeds its  investment and
the  Company  has no  obligation  to fund such  additional  losses,  the
Company  suspends  applying  the  equity  method of  accounting  for its
investment in such alliance.  The estimated  aggregate  amount of losses
in  the  Company's  strategic  alliances  in  excess  of  the  Company's
investments  which has not been recorded was not considered  material at
June 30,  1998.  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.

   DEPENDENCE  UPON  EXECUTIVE  OFFICERS  AND OTHER KEY  PERSONNEL.  The
Company's  operations  are,  and  for  the  proximate  future  will  be,
materially  dependent upon the efforts of its executive officers and key
technical employees,  all of whom serve the Company on a full-time basis
but none of whom are contractually  obligated to remain in the Company's
employ  for any  material  term.  Moreover,  the  Company's  growth  and
expansion  into  new  product   applications  could  require  additional
expertise in areas such as  manufacturing,  marketing and  distribution,
which would  place  increased  demands on the  Company's  resources  and
would  require the  addition of new  personnel  and the  development  of
additional   expertise   by   existing   personnel.   Certain   academic
consultants  serve the Company on a part-time basis, and could terminate
their relationship with the Company at any time.

   Certain   employees  and   consultants   of  the  Company  have  been
approached by the Company's competitors,  and no assurances can be given
that the competition will not successfully  recruit such personnel.  The
loss of key  personnel  or the failure to recruit  necessary  additional
personnel  could impede the  achievement  of the Company's  development,
commercialization and marketing objectives.

   POSSIBLE  RISKS  ASSOCIATED  WITH  AGREEMENTS  WITH RELATED  PARTIES;
COMMISSIONS  AND  EXCLUSIVE   DISTRIBUTORSHIPS.   In  1993  the  Company
entered into four  agreements  with  QuietPower  Systems,  Inc.  ("QSI")
(formerly Active Acoustical Solutions,  Inc.) and in 1994 entered into a
fifth  agreement  with QSI. QSI is 33% owned by  Environmental  Research
Information,  Inc. ("ERI") and 2% owned by Jay M. Haft,  Chairman of the
Board of  Directors of the Company.  Michael J.  Parrella,  President of
the Company owns  approximately  12% of the  outstanding  capital of ERI
and Mr. Haft shares  investment  control over an  additional  24% of the
outstanding  capital  of  ERI.  Under  these  agreements,  QSI is  given
rights to market certain of the Company's  products and  technologies to
electric  and/or  natural  gas  utilities  and for use in or with feeder
bowls.  In one of these  agreements,  QSI's  rights are on an  exclusive
basis so long as QSI meets  certain  performance  criteria  relating  to
marketing efforts and sales performance.  Under one of these agreements,
QSI is  entitled  to receive a sales  commission  equal to 129% of QSI's
marketing  expenses  attributable  to the  marketing  of the products in
question,  which  expenses  are to be deemed  to be the  lesser of QSI's
actual expenses or 35% of the revenues  received by the Company from the
sale of such  products.  Commissions  and fees payable  under all of the
other  agreements  are in accordance  with the Company's  standard terms
and   conditions  and  do  not  exceed  6%.  As  of  the  date  of  this
Prospectus,  the Company has not been required to pay any commissions to
QSI under these agreements.

   In March 1995, the Company  entered into a Master  Agreement with QSI
under  which  QSI was  granted  an  exclusive  worldwide  license  under
certain  NCT  patents  and  technical  information  to market,  sell and
distribute transformer quieting products,  turbine quieting products and
certain  other  products  in the  utility  industry.  Under  the  Master
Agreement,  QSI is to fund  development  of the  products by the Company
and the Company is to manufacture the products.  However, QSI may obtain
the  right to  manufacture  the  products  under  certain  circumstances
including  NCT's  failure to develop the  products or the failure of the
parties to agree on certain  development  matters.  In  consideration of
the  rights  granted  under  the  Master  Agreement,  QSI is to pay  the
Company a royalty of 6% of the gross revenues  received from the sale of
the products and 50% of the gross  revenues  received from  sublicensing
the  rights  granted  to QSI under the  Master  Agreement  after QSI has
recouped  150% of the costs  incurred by QSI in the  development  of the
products  in   question.   The  Company  is  obligated  to  pay  similar
royalties  to QSI on its  sale  of the  products  and the  licensing  of
rights covered under the Master  Agreement  outside the utility industry
and from sales and  licensing  within the  utility  industry  in the Far
East.  In  addition  to  the  foregoing  royalties,  QSI  is to  pay  an
exclusivity  fee to the Company of $750,000;  $250,000 of which QSI paid
to the  Company in June 1994.  The  balance is payable in equal  monthly
installments  of  $16,667  beginning  in  April  1995.  QSI's  exclusive
rights become  non-exclusive with respect to all products if it fails to
pay any  installment of the  exclusivity fee when due and QSI loses such
rights with  respect to any given  product in the event it fails to make
any development  funding payment applicable to that product.  The Master
Agreement  supersedes  all other  agreements  relating  to the  products
covered under the Master Agreement,  including those agreements  between
the Company and QSI described above.


<PAGE>

   Immediately  following  the  execution to the Master  Agreement,  the
Company  and QSI  entered  into a  letter  agreement  providing  for the
termination  of the Master  Agreement at the  Company's  election if QSI
did not pay approximately  $500,000 in payables then owed to the Company
by May 15, 1995.

   In April  1995,  the  Company and QSI  entered  into  another  letter
agreement  under which QSI agreed to forfeit and surrender the five year
warrant to purchase  750,000 shares of the Company's Common Stock issued
to  QSI  under  the  first  Marketing   Agreement  described  above.  In
addition,  the  $500,000  balance of the  exclusivity  fee  provided for
under the Master  Agreement  was  reduced to  $250,000  to be paid in 30
monthly  installments of $8,333 each and the payment of the indebtedness
to be paid  under  the  letter  agreement  described  in the  proceeding
paragraph  was revised to be the earlier of May 15, 1996, or the date of
closing  of a  financing  of QSI in an amount  exceeding  $1.5  million,
whichever  first  occurs.  Such  indebtedness  was to be  evidenced by a
promissory  note,  non-payment  of which  would  constitute  an event of
termination under the Master Agreement.

   In May,  1996,  the  Company  and QSI  entered  into  another  letter
agreement  extending  the time by  which  the  payments  from QSI to the
Company under the April 1995 letter  agreement  described  above were to
be made.  Under the letter the  payment  of  certain  arrearages  in the
payment  of the  exclusivity  fee was to be made not later than June 15,
1996, with the balance  continuing to be payable by monthly  payments of
$8,333 and as  provided in the May 1995  letter  agreement.  In addition
the payment of the other  indebtedness owed by QSI to the Company was to
be paid by a  payment  of  $25,000  at the  time  QSI  obtained  certain
anticipated  financing  with the  balance  paid by monthly  payments  of
$15,000  each.  Default in QSI's  timely  payment of any of the  amounts
specified  in the  May  21,  1996  letter  agreement  was to  cause  the
immediate  termination of the Master Agreement and all rights granted to
QSI thereunder.

   On April 9, 1997,  the Company and QSI entered  into  another  letter
agreement  revising  the payment  schedule set forth in the May 21, 1996
letter agreement  applicable to the payment of the indebtedness  owed to
the  Company  by QSI other than the  unpaid  portion of the  exclusivity
fee. Under the revised  schedule,  the full amount of such  indebtedness
is to be paid by an initial  payment of $125,000 on or before  April 21,
1997,  and a second  payment of $200,000  upon the closing of a proposed
financing in June 1997 or on January 1, 1998,  whichever  first  occurs.
The  Company  is also  entitled  to receive  15% of any other  financing
obtained  by QSI in the  interim as well as  interest at the rate of 10%
per annum on the unpaid amount of such  indebtedness  from July 1, 1997.
The  letter  agreement  also  provides  for the  continuation  of  QSI's
payment of $11,108 by April 21, 1997,  for headset  products sold by the
Company  to QSI in 1996.  In the  event  of a  default  in QSI's  timely
payment  of any of the  amounts  specified  in the April 9, 1997  letter
agreement,  the  Company has the right to cause the  termination  of the
Master  Agreement and all rights granted by QSI thereunder  upon 10 days
notice of termination to QSI.

   As of June 30, 1998,  QSI has paid all  installments  due and payable
for the exclusivity  fee, and still owes the Company  $239,000 which was
due on January 1,  1998,  and is fully  reserved  by the  Company,  and,
other than as described above, as of the date of this  Prospectus,  owes
no other  amounts to the Company.  The Company has been  informed by QSI
that QSI's  failure to pay such $239,000 is  attributable  to a shortage
of cash and other liquid assets.

   The Company  believes that the terms of its  agreements  with QSI are
comparable to those that it could have  negotiated with other persons or
entities.


<PAGE>

   COMPETITION.  The Company is aware of a number of direct  competitors
in the  field of  Active  Wave  Management.  Indirect  competition  also
exists in the field of  passive  sound and  vibration  attenuation.  The
Company's  principal  competitors  in  active  control  systems  include
Andrea Electronics Corporation, Bose Corporation,  Digisonix (a division
of Nelson  Industries,  Inc.),  Group Lotus PLC and Lotus Cars  Limited,
Lord Corporation,  Matsushita Electric Industrial Co., Ltd.,  Sennheiser
Electronic  Corp.  and Sony  Corporation,  among  others.  The Company's
principal  competitors in other fields of Active Wave Management include
IBM  Corporation,  Lucent  Technologies,  Inc.  and  Texas  Instruments,
Incorporated.  To the  Company's  knowledge,  each of such  entities  is
pursuing its own  technology in active  control  systems,  either on its
own  or  in  collaboration  with  others,  and  has  recently  commenced
attempts to  commercially  exploit such  technology.  NCT also  believes
that a number of other large  companies,  such as the major domestic and
foreign    communications,    computer,    automobile    and   appliance
manufacturers,  and aircraft  parts  suppliers and  manufacturers,  have
research and development  efforts underway in Active Wave Management and
active noise and vibration  control.  Many of these  companies,  as well
as  the  Company's  potential  competitors  in  the  passive  sound  and
vibration  attenuation  field and other  entities  which could enter the
active noise and vibration  attenuation field and other fields of Active
Wave Management as the industry develops,  are well established and have
substantially greater management,  technical,  financial,  marketing and
product development resources than the Company.

   NASDAQ/NMS LISTING  REQUIREMENTS;  DISCLOSURE  RELATING TO LOW-PRICED
STOCKS.  The Company's  Common Stock currently is quoted on the National
Association of Securities  Dealers,  Inc.  Automated  Quotation National
Market System  ("NASDAQ/NMS").  The NASDAQ/NMS has adopted  quantitative
maintenance  criteria  for  continued  listing by the  NASDAQ/NMS  under
which the Company is required,  among other  things,  to  maintain:  (i)
net  tangible  assets  of $4.0  million;  and  (ii) a  market  value  of
publicly  held  shares  of $5.0  million.  In  addition,  for  continued
listing  the  Company's  Common  Stock must have a minimum  bid price of
$1.00.  A  failure  to meet the  continued  inclusion  requirements  for
minimum bid price is  determined  to exist if the  deficiency  continues
for a period of thirty (30) consecutive business days.  From April 30, 1998,
through June 15, 1998,  the minimum bid price for the  Company's  Common
Stock as quoted on the  NASDAQ/NMS  was below  $1.00.  On June 16, 1998,
the Company was notified by Nasdaq of such a thirty (30) day  deficiency 
and that the Company would have a period of ninety (90) calendar days  
from such notification to achieve compliance with the continued inclusion
standard.  Compliance  can be  achieved by meeting  the  standard  for a
minimum of ten (10) consecutive business days during the 90 day compliance
period.  On June 30,  1998,  the amount of the  Company's  net  tangible
assets was  approximately  $12.2  million  and the  market  value of its
publicly  held  shares  was  $80.7  million.   Management  believes  the
Company will be able to maintain  net  tangible  assets of at least $4.0
million at least  through  the year 1998  although no  assurance  can be
given that  circumstances  will not occur which will cause the Company's
net  tangible  assets to fall below $4.0 million  before that time.  See
"Current Financial  Condition;  Cash Position;  Conditional  Adequacy of
Currently  Available  Funds  to  Sustain  Company;   Possible  Need  for
Additional   Financing",    "Going   Concern   Emphasis   Paragraph   in
Accountants'  Opinion",  and "Limited Revenues" above. Because the price
of the Company's  Common Stock is dependent on numerous  market  factors
not within the  Company's  control,  management  is unable to express an
opinion of the likelihood  that the market value of publicly held shares
of the  Company's  Common Stock will fall below $5.0 million which would
occur if the number of  publicly  held  shares of the  Company's  Common
Stock was the same number as existed on September 23, 1998  (141,786,118
shares) and the price per share fell below  $0.0353.  On  September  23,
1998,  the price per share of the  Company's  Common  Stock was $0.5313.
On June 16, 1998,  Nasdaq notified the Company that the Company's common
stock had failed to  maintain  a closing  bid price of $1.00 or more for
the previous  thirty (30)  consecutive  trade dates in  accordance  with
Nasdaq's  Marketplace Rule 4450(a)(5).  Nasdaq also notified the Company
that no  delisting  action  would be initiated at that time and that the
Company  would be provided  ninety (90) calendar days in which to regain
compliance with  Marketplace  Rule 4450(a)(5) which would be achieved if
the  closing  bid price of the  shares  of the  Company's  common  stock
equaled or exceeded $1.00 for ten (10)  consecutive  days before the end
of trading on September  14,  1998.  In this regard  Nasdaq  advised the
Company that in the event the Company was unable to achieve  compliance,
it may seek  further  procedural  remedies.  The  Company  was unable to
achieve  compliance  by September 14, 1998,  and on that date  delivered
its request for a hearing on the matter  together with the requested fee
to Nasdaq's Hearings  Department.  Under Nasdaq's  procedures  delisting
is stayed pending the outcome of the hearing.


<PAGE>

   Failure  of  the  Company  to   continue  to  meet  the   maintenance
requirements  could  result in the Common  Stock  losing its  NASDAQ/NMS
designation.  The NASDAQ/NMS  provides brokers and others with immediate
access to the best bid and asked prices and other  information about the
Common  Stock  during each  trading day. If the Company were to lose its
NASDAQ/NMS  designation,  real-time  price  information  for the  Common
Stock might cease to be  available.  As a result,  a  stockholder  might
find it more difficult to dispose of, or to obtain  accurate  quotations
as to the price of, the Common Stock.  In addition,  if the Company were
to lose the  NASDAQ/NMS  designation,  the Common  Stock might no longer
qualify as a "margin security" as defined by the Federal Reserve Board.

   If the Company were to lose its  NASDAQ/NMS  designation  and, at any
time  following  the loss of such  designation,  did not have either (i)
net tangible  assets in excess of $2.0  million or (ii) average  revenue
of at least $6.0  million  for the last three  years,  the Common  Stock
could  become  subject to the  Commission's  "penny  stock"  rules.  The
penny stock rules  impose  additional  sales  practice  requirements  on
broker-dealers  who  sell  securities  designated  as  penny  stocks  to
persons   other  than   established   customers  and  certain  types  of
accredited  investors.  For  transactions  covered  by the  penny  stock
rules, the broker-dealer must make a special  suitability  determination
for the  purchaser  and  must  have  received  the  purchaser's  written
consent to the  transaction  prior to the sale.  The rules  require  the
delivery,  prior to the transaction,  of a disclosure  schedule prepared
by the  Commission  relating to the penny stock  market.  The rules also
require  disclosure by the broker-dealer of commissions  payable to both
the  broker-dealer  and  the  registered   representative   and  current
quotations  for  the  securities.  If  the  broker-dealer  is  the  sole
market-maker for the penny stock, the  broker-dealer  must disclose this
fact  and  the   broker-dealer's   presumed  control  over  the  market.
Finally,  monthly  statements  must  be  sent  disclosing  recent  price
information  for the penny  stock  held in the  customer's  account  and
information  on the  limited  market  in penny  stocks.  The  additional
burdens  imposed  upon  broker-dealers  by the  penny  stock  rules  may
discourage  broker-dealers from effecting  transactions in penny stocks.
Thus, if the Common Stock were to fall within the  definition of a penny
stock,  the  liquidity  of the Common  Stock  could be reduced and there
could be a material effect on the trading market for the Common Stock.

   POSSIBLE   VOLATILITY  OF  COMMON   STOCK.   The  market  prices  for
securities of emerging and  high-technology  companies have historically
been highly  volatile.  Future  announcements  concerning the Company or
its competitors  could have a significant  impact on the market price of
the Common Stock.

   BLANK  CHECK  PREFERRED  STOCK.  The  Board of  Directors  has  total
discretion  in the  issuance  and the  determination  of the  rights and
privileges  of any shares of  Preferred  Stock  which might be issued in
the  future,  which  rights and  privileges  may be  detrimental  to the
holders of the Common  Stock.  The Company is  authorized  to issue 10.0
million  shares of  Preferred  Stock  25,250  shares of which  have been
designated  to date.  At  September  23,  1998 there  were 8,400  shares
issued and  outstanding.  The issuance of Preferred  Stock in the future
could  discourage  or  impede a tender  offer,  proxy  contest  or other
similar  transaction  involving  a  potential  change in  control of the
Company,   which   transaction   might  be  viewed  favorably  by  other
shareholders.  Management  is  not  aware  of  any  efforts  to  acquire
control of or take over the Company.

  RISKS  ASSOCIATED  WITH YEAR 2000.  The Company  believes  the cost of
administrating  its  Year  2000  Compliance  program  will  not  have  a
material  adverse  impact on future  earnings.  However,  the  potential
costs  and  uncertainties  associated  with  any  Year  2000  Compliance
program  will  depend  on  a  number  of  factors,  including  software,
hardware  and the  nature  of the  industry  in which the  Company,  its
subsidiaries,  suppliers and customers operate.  In addition,  companies
must  coordinate  with other  entities  with  which they  electronically
interact, such as customers,  suppliers,  financial  institutions,  etc.
The  Company  estimates  that  potential  costs  will  not  exceed  $0.1
million.

  Although the Company's  evaluation of its systems is still in process,
there has been no indication that the Year 2000 Compliance  issue, as it
relates  to  internal  systems,  will have a  material  impact on future
earnings.  While  the  Company  is not aware of any  material  Year 2000
Compliance  issues  at  its  customers  and  suppliers,  such  potential
problems remain a possibility  and could have a material  adverse impact
on the Company's  future results.  The Company  estimates  completion of
the evaluation process by June 30, 1999.


<PAGE>

  RECENTLY ISSUED ACCOUNTING  PRONOUNCEMENTS.  The Financial  Accounting
Standards Board has recently issued  Statements of Financial  Accounting
Standards No. 129,  "Disclosure of Information about Capital  Structure"
and No. 131,  "Disclosures  about  Segments of an Enterprise and Related
Information".   The  Company  has  not  determined   whether  the  above
pronouncements  will  have  a  significant  effect  on  the  information
presented in its financial statements.

   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. At the
hearing on May 19, 1998, the Discovery Judge  established  dates for the
parties to submit  final  pleadings  and set  September  22, 1998 as the
date to send the case  before  the  Tribunal  of Milan  sitting  in full
bench.  As of September  29, 1998,  the Company had not been informed of
any  decision by the  Tribunal.  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>

   On June 10, 1998,  Schwebel Capital  Investments,  Inc. ("SCI") filed
suit  against  the Company and  Michael J.  Parrella,  President,  Chief
Executive  Officer and a Director of the Company,  in the Circuit  Court
for Anne  Arundel  County,  Maryland.  The summons and  complaint in the
suit were served on the Company and Mr.  Parrella on June 24, 1998.  The
complaint  alleges the Company  breached,  and Mr.  Parrella  interfered
with, a purported  contract  entered into "in 1996"  between the Company
and SCI under which SCI was to be paid  commissions  by the Company when
the Company received capital from investors who purchased  debentures or
convertible  preferred  stock of the Company during a period  presumably
commencing on the date of the alleged  contract and allegedly  extending
at least to May 1, 1998.  In this  regard,  the  complaint  alleges that
SCI by virtue of a  purported  right of first  refusal  that the Company
did not  honor,  is  entitled  to  commissions  totaling  $1,500,000  in
connection  with the Company's sale of  $13,300,000  of preferred  stock
and  a  subsidiary  of  the  Company's   sale  of  $4,000,000  of  stock
convertible  into stock of the  Company.  In the  complaint  SCI demands
judgment  against the Company for  compensatory  damages of  $1,673,000,
punitive  damages of $50,000 and attorneys'  fees of $50,000 and demands
judgment  against Mr.  Parrella  for  compensatory  damages of $150,000,
punitive  damages of $500,000 and attorneys'  fees of $50,000 as well as
unspecified  other  appropriate   relief.  The  Company  has  filed  two
motions  seeking  to strike  or  dismiss  certain  claims  contained  in
plaintiff's  complaint and amended complaint and is awaiting the Court's
decision.  For this reason and  because no  discovery  has taken  place,
the  Company is unable to assess the  likelihood  of an adverse  result.
Management,  however, believes it has meritorious defenses and intends a
vigorous  defense  of this  suit.  However,  in the event this suit 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>

                             USE OF PROCEEDS

   All of the shares of Common Stock  offered  hereby are being  offered
by the Selling  Stockholders and the Company will not receive any of the
proceeds  from  their  sale.  The  expenses  payable  by the  Company in
connection  with  this  registration   statement  are  estimated  to  be
$30,788.  There are no other material incremental expenses  attributable
solely to the issuance and distribution of the above described shares.




                         SELLING STOCKHOLDERS

   The following  table sets forth certain  information  with respect to
the Selling  Stockholders.  The shares of Common Stock set forth therein
have  been  included  in  the  Registration   Statement  of  which  this
Prospectus  forms a part pursuant to registration  commitments  afforded
to the Selling  Stockholders  by  contractual  obligations.  The Company
will  not  receive  any  proceeds  from the  sale of the  shares  by the
Selling Stockholders.
                                                                 
                                                                     Beneficial
                                                                     Ownership
                                      Beneficial                     of Shares
                                      Ownership                      of Common
                                      of             Number          Stock
                                      Shares of      of Shares       After
                                      Common         of Common       Giving
                    Relationship      Stock at       Stock           Effect to
Name of Selling     With              September      Offered         Proposed
Stockholder         The Company       23, 1998       For Sale        Sale
- ------------------  ------------      ----------     ---------       ----------

Alliance Advisory                       389,348        89,348        300,000
Partners, LLC
Prakash Bhalerao                         40,939        40,939
Chuck Cheng                               5,117         5,117
Vijay Chougule                           40,939        40,939
Amy Dasso                                   171           171
Sanjay Dave                              13,860        13,860
Cynthia Hughes                            3,412         3,412
Srini Krishnaswami                      255,870       255,870
Derek Lentz                              10,235        10,235
Nina Luu                                    171           171
Robert Maffit                             5,117         5,117
Haresh Makhijani                          5,117         5,117
Rajesh Parekh                            34,116        34,116
Soma Pullela                              3,412         3,412
Vaidyanathan Raghunathan                 74,629        74,629
Vishnu Reddy                             68,232        68,232
Balaji A. Sampath                         3,483         3,483
Lee Scantlin                            170,580       170,580
Anand Sheel                             562,914       562,914
Shiraj Shivji                            85,290        85,290
Mark Snesrud                            255,870       255,870
Patricia Steele                             171           171
Karen Vahtra                              3,412         3,412
Stephen Voorhees                         54,586        54,586
                                      =========      =========       =======
                                      2,086,991      1,786,991       300,000
                                      =========      =========       =======



<PAGE>

                          PLAN OF DISTRIBUTION

   The Company has been advised by the Selling  Stockholders  that there
are  no  underwriting  arrangements  with  respect  to the  sale  of the
shares,  that such shares will be sold from time to time in public sales
in the  over-the-counter  market at then prevailing  prices or at prices
related to the then current market price or in private  transactions  at
negotiated  prices.  The  shares  offered  hereby  may be sold by one or
more of the following  methods,  without  limitation:  (a) a block trade
in which a broker or dealer so engaged  will  attempt to sell the shares
as  agent  but may  position  and  resell  a  portion  of the  block  as
principal to facilitate  the  transaction;  (b) purchases by a broker or
dealer as principal  and resale by such broker or dealer for its account
pursuant to this  Prospectus;  (c) ordinary  brokerage  transactions and
transactions   in  which  the  broker  solicits   purchasers;   and  (d)
face-to-face  transactions  between  sellers  and  purchasers  without a
broker-dealer.  In effecting  sales,  brokers or dealers  engaged by the
Selling  Stockholders  may  arrange  for other  brokers  or  dealers  to
participate.   Such  broker  or  dealers  may  receive   commissions  or
discounts from Selling  Stockholders  in amounts to be negotiated.  Such
brokers and dealers and any other  participating  brokers or dealers may
be  deemed  to be  "underwriters"  within  the  meaning  of the Act,  in
connection  with such sales.  Shares of Common Stock offered  hereby may
be used to cover short sales or other  hedging  transactions.  From time
to  time,  one or more of the  Selling  Stockholders  named  herein  may
pledge,  hypothecate or grant a security  interest in some or all of the
Shares owned by them,  and the pledgees,  secured  parties or persons to
whom such securities have been  hypothecated  shall, upon foreclosure in
the event of default, be deemed to be Selling  Stockholders for purposes
hereof.



                             LEGAL MATTERS

   Matters  relating to the legality of 1,786,991 shares of Common Stock
being offered by this  Prospectus  have been passed upon for the Company
by John B. Horton,  Esquire,  Senior Vice President and General  Counsel
of the  Company.  As of  September  30,  1998,  Mr.  Horton owned 20,000
shares of Common  Stock.  In  addition,  Mr.  Horton owns 20,000  shares
subject  to  acquisition  upon the  exercise  of  currently  exercisable
warrants and 539,417 shares subject to acquisition  upon the exercise of
currently  exercisable  options granted to him under the 1992 Plan, none
of which are being offered by this Prospectus.


                                EXPERTS

   The consolidated  financial statements of the Company at December 31,
1996 and 1997 and for the years ended  December 31, 1995,  1996 and 1997
the  related  financial   statement  schedule   incorporated  into  this
prospectus by reference to the Company's  Annual Report on Form 10-K for
the fiscal year ended  December  31,  1997  (including  Amendment  No. 1
thereto  filed on April 30, 1998,  and  Amendment No. 2 thereto filed on
May 4, 1998),  have been  audited by Richard A.  Eisner & Company,  LLP,
Independent  Auditors,  as set forth in their  report  included  therein
(which  contains an  explanatory  paragraph  relating  to the  Company's
ability to continue as a going  concern)  and have been so  incorporated
in reliance  upon such reports  given upon the authority of such firm as
experts in auditing and accounting.

   The  financial   statements  of  the  Company's   subsidiary,   Noise
Cancellation  Technologies  (UK) Limited,  at December 31, 1996 and 1997
and for the years ended  December 31, 1995,  1996 and 1997  incorporated
into this  prospectus  by reference to the  Company's  Annual  Report on
Form  10-K for the  fiscal  year  ended  December  31,  1997  (including
Amendment  No. 1 thereto  filed on April 30, 1998,  and  Amendment No. 2
thereto  filed on May 4, 1998),  have been audited by Peters  Elworthy &
Moore,  Chartered  Accountants,  as set forth in their  report  included
therein  (which  contains  an  explanatory  paragraph  relating  to  the
Company's  ability  to  continue  as a going  concern)  and have been so
incorporated  in reliance  upon such reports given upon the authority of
such firm as experts in auditing and accounting.




<PAGE>

                                PART II

                 INFORMATION NOT REQUIRED IN PROSPECTUS

Item 14.    Other Expenses of Issuance and Distribution

      The following table sets forth the estimated  expenses  payable by
the  registrant   with  respect  to  the  offering   described  in  this
Registration Statement:

Securities and Exchange Commission  
  registration fee                                              $    288
Legal Fees and expenses                                           15,000 *
Accounting fees and expenses                                      15,000 *
Miscellaneous expenses                                               500 *
                                                   ----------  ----------

Total                                                           $ 30,788 *
                                                   ==========  ==========
_____________
* Estimated


Item 15.    Indemnification of Directors and Officers

Article IX of the Registrant's  Certificate of Incorporation provides as
follows:

            "(a)  Each  person who was or is made a party or
      is  threatened to be made a party to or is involved in
      any  action,   suit  or  proceeding,   whether  civil,
      criminal,      administrative     or     investigative
      (hereinafter  a  "proceeding"),  by reason of the fact
      that he or she,  or a person  of whom he or she is the
      legal   representative,   is  or  was  a  director  or
      officer,  of the  Corporation  or is or was serving at
      the  request  of  the   Corporation   as  a  director,
      officer,  employee or agent of another  corporation or
      of  a  partnership,  joint  venture,  trust  or  other
      enterprise,   including   service   with   respect  to
      employee  benefit  plans,  whether  the  basis of such
      proceeding is alleged  action in an official  capacity
      as a  director,  officer,  employee or agent or in any
      other capacity  while serving as a director,  officer,
      employee  or  agent,  shall  be  indemnified  and held
      harmless  by the  Corporation  to the  fullest  extent
      authorized by the Delaware  General  Corporation  Law,
      as the same exists or may  hereafter be amended  (but,
      in the case of any such  amendment  only to the extent
      that  such  amendment   permits  the   Corporation  to
      provide broader  indemnification  rights than said law
      permitted  the  Corporation  to provide  prior to such
      amendment),  against all expense,  liability  and loss
      (including  attorneys' fees,  judgments,  fines, ERISA
      excise  taxes or  penalties  and amounts paid or to be
      paid in  settlement)  reasonably  incurred or suffered
      by  such  person  in  connection  therewith  and  such
      indemnification  shall continue as to a person who has
      ceased to be a  director,  officer,  employee or agent
      and shall  inure to the  benefit  of his or her heirs,
      executors  and  administrators;   provided,   however,
      that, except as provided in paragraph (b) hereof,  the
      Corporation  shall  indemnify any such person  seeking
      indemnification  in connection  with a proceeding  (or
      part  thereof)  initiated  by such person only if such
      proceeding  (or part  thereof) was  authorized  by the
      Board of  Directors of the  Corporation.  The right to
      indemnification  conferred in this Section  shall be a
      contract  right and shall include the right to be paid
      by the Corporation the expenses  incurred in defending
      any  such   proceeding   in   advance   of  its  final
      disposition;  provided, however, that, if the Delaware
      General Corporation Law requires,  the payment of such
      expenses  incurred  by a director or officer in his or
      her  capacity as a director or officer (and not in any
      other  capacity in which service was or is rendered by
      such person  while a director  or officer,  including,
      without  limitation,  service to an  employee  benefit
      plan)  in  advance  of  the  final  disposition  of  a
      proceeding,  shall be made only upon  delivery  to the
      Corporation  of an  undertaking,  by or on  behalf  of
      such  director  or  officer,  to repay all  amounts so
      advanced if it shall  ultimately  be  determined  that
      such  director  or  officer  is  not  entitled  to  be
      indemnified  under  this  Section  or  otherwise.  The
      Corporation  may, by action of its Board of Directors,
      provide  indemnification  to  employees  and agents of
      the Corporation  with the same scope and effect as the
      foregoing indemnification of directors and officers.
<PAGE>

            "(b)  If a  claim  under  paragraph  (a) of this
      Section is not paid in full by the Corporation  within
      thirty  days after a written  claim has been  received
      by the  Corporation,  the  claimant  may  at any  time
      thereafter  bring  suit  against  the  Corporation  to
      recover  the  unpaid  amount  of  the  claim  and,  if
      successful in whole or in part,  the claimant shall be
      entitled  to be paid also the  expense of  prosecuting
      such  claim.  It shall be a defense to any such action
      (other  than an action  brought to enforce a claim for
      expenses  incurred  in  defending  any  proceeding  in
      advance of its final  disposition  where the  required
      undertaking,  if any is required, has been tendered to
      the  Corporation)  that the  claimant  has not met the
      standards of conduct which make it  permissible  under
      the   Delaware   General   Corporation   Law  for  the
      Corporation  to indemnify  the claimant for the amount
      claimed,  but the burden of proving such defense shall
      be on the  Corporation.  Neither  the  failure  of the
      Corporation   (including   its  Board  of   Directors,
      independent  legal counsel,  or its  stockholders)  to
      have made a  determination  prior to the  commencement
      of such action that  indemnification  of the  claimant
      is proper in the  circumstances  because he or she has
      met the  applicable  standard  of conduct set forth in
      the Delaware  General  Corporation  Law, nor an actual
      determination by the Corporation  (including its Board
      of  Directors,   independent  legal  counsel,  or  its
      stockholders)  that  the  claimant  has not  met  such
      applicable standard or conduct,  shall be a defense to
      the action or create a  presumption  that the claimant
      has not met the applicable standard of conduct.

            "(c)  The  right  to  indemnification   and  the
      payment  of   expenses   incurred   in   defending   a
      proceeding   in  advance  of  its  final   disposition
      conferred  in this  Section  shall not be exclusive of
      any  right  which  any  person  may have or  hereafter
      acquire   under   any   statute,   provision   of  the
      Certificate of Incorporation,  by-law, agreement, vote
      of   stockholders   or   disinterested   directors  or
      otherwise.

            "(d)  The  Corporation  may maintain  insurance,
      at its expense,  to protect  itself and any  director,
      officer,  employee  or  agent  of the  Corporation  or
      another  corporation,   partnership,   joint  venture,
      trust or other  enterprise  against any such  expense,
      liability  or  loss,  whether  or not the  Corporation
      would have the power to indemnify  such person against
      such  expense,  liability  or loss under the  Delaware
      General Corporation Law."


Item 16.    Exhibits  (listed  according  to the number  assigned in the
table in Item 601 of Regulation S-K)

 
 Exhibit No.                          Description
 -----------                          -----------

      5          Opinion  of  John B.  Horton,  Esquire,  Senior  Vice
                 President and General Counsel of the  registrant,  as
                 to the  legality  of the  Common  Stock to which this
                 Registration Statement relates.

    23(a)        Consent of Richard A. Eisner & Company, LLP

    23(b)        Consent of Peters Elworthy & Moore

    23(c)        Consent  of John B.  Horton,  Esquire  (contained  in
                 Exhibit 5)




<PAGE>

Item 17.    Undertakings

      The undersigned registrant hereby undertakes:

            (a)   (1)   To file,  during any  period in which  offers or
      sales  are  being  made,  a   post-effective   amendment  to  this
      registration statement:

                        (i)   To  include  any  prospectus  required  by
                  section 10(a)(3) of the Securities Act of 1933;

                        (ii)  To reflect in the  prospectus any facts or
                  event  arising   after  the  effective   date  of  the
                  registration    statement    (or   the   most   recent
                  post-effective amendment thereof) which,  individually
                  or in the  aggregate,  represent a fundamental  change
                  in the  information  set  forth  in  the  registration
                  statement.    Notwithstanding   the   foregoing,   any
                  increase or decrease in volume of  securities  offered
                  (if the  total  dollar  value  of  securities  offered
                  would not exceed  that which was  registered)  and any
                  deviation  from the low or high  and of the  estimated
                  maximum  offering  range may be  reflected in the form
                  of prospectus  filed with the  Commission  pursuant to
                  Rule  424(b)  if, in the  aggregate,  the  changes  in
                  volume  and price  represent  no more than 20  percent
                  change in the  maximum  aggregate  offering  price set
                  forth in the  "Calculation of Registration  Fee" table
                  in the effective registration statement.

                        (iii) To include any material  information  with
                  respect  to the plan of  distribution  not  previously
                  disclosed  in  the   registration   statement  or  any
                  material   change   to   such   information   in   the
                  registration statement;

      provided,  however,  that the undertakings set forth in paragraphs
      (1)(i) and (1)(ii) above do not apply if the information  required
      to be included in a  post-effective  amendment by those paragraphs
      is contained in periodic reports filed by the registrant  pursuant
      to  Section  13 or 15(d) of the  Securities  Exchange  Act of 1934
      that are incorporated by reference in this registration statement.

                  (2)   That,  for  the  purpose  of   determining   any
            liability  under  the  Securities  Act of  1933,  each  such
            post-effective  amendment  shall  be  deemed  to  be  a  new
            registration  statement  relating to the securities  offered
            therein,  and the offering of such  securities  at that time
            shall  be  deemed  to be  the  initial  bona  fide  offering
            thereof.

                  (3)   To  remove  from  registration  by  means  of  a
            post-effective   amendment  any  of  the  securities   being
            registered  which remain  unsold at the  termination  of the
            offering.

            (b)   That for purposes of determining  any liability  under
      the  Securities  Act of  1933,  each  filing  of the  registrant's
      annual   report   pursuant  to  Section  13(a)  or  15(d)  of  the
      Securities  Exchange Act of 1934 that is incorporated by reference
      in  this  registration  statement  shall  be  deemed  to  be a new
      registration   statement   relating  to  the  securities   offered
      therein,  and the offering of such  securities  at that time shall
      be deemed to be the initial bona fide offering thereof.

            (h)   Insofar as  indemnification  for  liabilities  arising
      under the  Securities  Act of 1933 may be permitted to  directors,
      officers and  controlling  persons of the  registrant  pursuant to
      the foregoing  provisions,  or otherwise,  the registrant has been
      advised  that  in the  opinion  of  the  Securities  and  Exchange
      Commission  such  indemnification  is  against  public  policy  as
      expressed  in the  Act and is,  therefore,  unenforceable.  In the
      event that a claim for  indemnification  against such  liabilities
      (other than the payment by the registrant of expenses  incurred or
      paid  by  a  director,   officer  or  controlling  person  of  the
      registrant  in the  successful  defense  of any  action,  suit  or
      proceeding) is asserted by such  director,  officer or controlling
      person in connection  with the securities  being  registered,  the
      registrant  will,  unless in the opinion of its counsel the matter
      has been settled by  controlling  precedent,  submit to a court of
      appropriate     jurisdiction    the    question    whether    such
      indemnification  by it is against  public  policy as  expressed in
      the Act and will be  governed  by the final  adjudication  of such
      issue.





<PAGE>

                               SIGNATURES

   Pursuant  to the  requirements  of the  Securities  Act of 1933,  the
registrant  certifies that it has reasonable  grounds to believe that it
meets  all of the  requirements  for  filing  on Form  S-3 and has  duly
caused  this  Registration  Statement  to be signed on its behalf by the
undersigned,  thereunto duly authorized, in Linthicum, Maryland, on this
30th day of September, 1998.

                              NOISE CANCELLATION TECHNOLOGIES, INC.


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





  Pursuant to the  requirements  of the  Securities  Act of 1933,  this
Registration  Statement has been signed by the following  persons in the
capacities and on the dates indicated.

    Signatures                    Capacity                         Date
    ----------                    --------                         ----


/s/ MICHAEL J. PARRELLA     President (Principal Executive   September 30, 1998
- ------------------------    Officer) and Director
Michael J. Parrella                


/s/ CY E. HAMMOND           Senior Vice President and        September 30, 1998
- ------------------------    Chief Financial Officer
Cy E. Hammond               (Principal Financial and
                            Accounting Officer)

/s/ JAY M. HAFT             Chairman of the Board            September 30, 1998
- ------------------------    of Directors and Director
Jay M. Haft


/s/ JOHN J. McCLOY          Director                         September 30, 1998
- ------------------------
John J. McCloy


/s/ SAM OOLIE               Director                         September 30, 1998
- ------------------------
Sam Oolie


/s/ STEPHAN CARLQUIST       Director                         September 30, 1998
- ------------------------
Stephan Carlquist


/s/ MORTON SALKIND          Director                         September 30, 1998
- ------------------------
Morton Salkind




<PAGE>

                            EXHIBIT INDEX

                                                              Sequential
Exhibit No.             Description                           Page Number
- -----------             -----------                           ----------- 

     5            Opinion of John B. Horton, Esquire,             39
                  Senior Vice President and General 
                  Counsel of the registrant, as to the 
                  legality of the Common Stock to which
                  this Registration Statement relates

    23(a)         Consent of Richard A. Eisner & Company, LLP     40
 

    23(b)         Consent of Peters Elworthy & Moore              41
 

    23(c)         Consent of John B. Horton, Esquire 
                  (contained in Exhibit 5)






Exhibit 5



                                    September 30, 1998



Noise Cancellation Technologies, Inc.
1025 West Nursery Road, Suite 120
Linthicum, Maryland  21090

Re:   Registration Statement on form S-3

Gentlemen:

      Referring to the Registration Statement on Form S-3 that Noise
Cancellation Technologies, Inc. (the "Company") is filing today with
the Securities and Exchange Commission under the Securities Act of
1933, as amended, relating to the sale by certain Selling Stockholders
of 1,786,991 shares of Common Stock of the Company (the "Resale
Shares"), I am of the opinion that the Resale Shares have been duly
authorized by the Company, have been validly issued and are fully paid
and nonassessable.

      I hereby consent to the filing of this opinion with the
Securities and Exchange Commission as Exhibit No. 5 to the Registration
Statement referred to above and to the reference to me under the
caption "Legal Matters" in the Prospectus.

                                          Very truly yours,



                                          /s/ JOHN B. HORTON
                                          ------------------
                                          John B. Horton
                                          Senior Vice President and
                                          General Counsel




Exhibit 23(a)

                     INDEPENDENT AUDITORS' CONSENT


We  consent  to the  incorporation  by  reference  to  the  Registration
Statement  on Form S-3 of our report dated  February  27,  1998,  on the
consolidated  financial  statements  and schedule of Noise  Cancellation
Technologies,  Inc. (the "Company") as of December 31, 1997 and 1996 and
for each of the years in the three-year  period ended December 31, 1997,
included in the  Company's  Annual  Report on Form 10-K (as amended) for
the year ended  December  31,  1997,  and to the  reference  to the firm
under the caption "Experts" included in the Prospectus.


/s/ RICHARD A. EISNER & COMPANY, LLP
Richard A. Eisner & Company, LLP

New York, New York
September 28, 1998




Exhibit 23(b)



September 29, 1998

Noise Cancellation Technologies, Inc.
1025 West Nursery Road, Suite 120
Linthicum, MD  21090  USA

Dear Sirs:

Noise Cancellation Technologies (UK) Limited

We  consent  to the  incorporation  by  reference  to  the  Registration
Statement  on  Form  S-3  of our  report  dated  May  13,  1998,  on the
financial  statements  and schedule of Noise  Cancellation  Technologies
(UK)  Limited (the  "Company")  as at December 31, 1997 and December 31,
1996 and for each of the years in the three year period  ended  December
31,  1997,  included  in the  Company's  Annual  Report on Form 10-K (as
amended) for the year ended  December 31, 1997,  and to the reference to
the firm under the caption "Experts" included in the Prospectus.

Yours faithfully,

/s/ PETERS ELWORTHY & MOORE
Peters Elworthy & Moore



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