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Exhibit 23.1
Consent of Independent Public Accountants
As independent public accountants, we hereby consent to the use of our report on
the financial statements of Dragon Systems, Inc. and subsidiaries dated January
25, 2000 (except with respect to the matters discussed in Note 1, as to which
the date is June 7, 2000) included in this Current Report of Lernout & Hauspie
Speech Products N.V. on Form 8-K/A and the incorporation by reference into the
previously filed Registration Statements Nos. 333-4914, No. 333-7294, No. 333-
8940, No. 333-10522, No. 333-11978, and No. 333-39258 of Lernout & Hauspie
Speech Products N.V. on Forms S-8, the Registration Statements Nos. 333-9014,
No. 333-10250, No. 333-10248 and No. 333-10600 of Lernout & Hauspie Speech
Products N.V. on Forms F-3, and Registration Statement No. 333-40686 of Lernout
& Hauspie Speech Products N.V. on Form S-3.
/s/ ARTHUR ANDERSEN LLP
Boston, Massachusetts
August 21, 2000
