Limited vocabulary continuous word recognition

The capability of recognizing a limited vocabulary (20 words) from continuous speech, independent of a limited number of speakers was developed. Emphasis was placed on three major areas: (1) high performance, speaker independent, connected digit recognition for syntactically unconstituted digit sequences; (2) clustering algorithms for use in the development of sets of reference patterns for speaker independent word recognition; and (3) automatic enrollment for speaker dependent, connected word recognition for syntactically unconstrained word sequences of 20 words. The program culminated in the installation of the speaker independent, connected digit recognition program on the base installation security system's advanced development model speaker verification system.