EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in the Registration Statement of C-Cube Microsystems Inc. on Form S-8 of our reports dated January 21, 1998, appearing in the Annual Report on Form 10-K of C-Cube Microsystems Inc. for the year ended December 31, 1997. /s/ Deloitte & Touche LLP DELOITTE & TOUCHE LLP San Jose, California July 16, 1998