<PAGE>
Exhibit 23.04
CONSENT OF INDEPENDENT AUDITOR
We consent to the incorporation by reference in the registration statement
on Form S-3 with respect to 1,600,000 shares of Common Stock of Lernout &
Hauspie Speech Products N.V. of our report dated September 2, 1999, with respect
to the financial statements of Brussels Translation N.V. included in Form 6-K of
Lernout & Hauspie Speech Products N.V. filed with the Securities and Exchange
Commission on September 9, 1999.
Gent, Belgium
August 23, 2000
----------
Ernst & Young Reviseurs d'Enterprises SCC (B 160)
/s/ Marc Cosaert
----------------
Marc Cosaert
Partner
