<PAGE>
EXHIBIT 23.01
THE BOARD OF DIRECTORS
LERNOUT & HAUSPIE SPEECH PRODUCTS N.V.:
We consent to the incorporation by reference in the registration statements
of Lernout & Hauspie Speech Products N.V. (Nos. 333-04914, 333-7294, 333-8940,
333-10522, 333-11978 and 333-39258) on Form S-8 and (Nos. 333-6468, 333-7292,
333-9014, 333-8922, 333-9306, 333-10250, 333-10248, 333-10600, 333-11324) on
Form F-3, of our report dated April 27, 2000, relating to the consolidated
balance sheets of Lernout & Hauspie Speech Products N.V. and subsidiaries as of
December 31, 1998 and 1999, and the related consolidated statements of
operations, shareholders' equity, cash flows and comprehensive income (loss) for
each of the years in the three-year period ended December 31, 1999, which report
appears in the December 31, 1999 annual report on Form 10-K of Lernout & Hauspie
Speech Products N.V.
/s/ Klynveld Peat Marwick Goerdeler Bedrijfsrevisoren
-----------------------------------------------------
Klynveld Peat Marwick Goerdeler Bedrijfsrevisoren
Brussels, Belgium
June 30, 2000
