Exhibit 23.03 INDEPENDENT AUDITOR'S CONSENT We consent to the incorporation by reference in this Registration Statement on Form S-8, with respect to 2,000,000 shares of Common Stock of Lernout & Hauspie Speech Products N.V., of our report dated February 11, 2000 (March 7, 2000 as to Note 14), appearing in the Annual Report on Form 10-K of Dictaphone Corporation and subsidiaries for the year ended December 31, 1999, which is incorporated by reference in Form 8-K/A of Lernout & Hauspie Speech Products N.V. filed with the Securities and Exchange Commission on May 25, 2000. /s/ Deloitte & Touche LLP - ------------------------- Deloitte & Touche LLP Hartford, Connecticut August 23, 2000