Design considerations of a speech recognition system using special purpose integrated circuits
Menahem Lowy · 1983
High accuracy, large vocabulary speech recognition systems have extremely high computational requirements. In order to perform the computation fast enough to have real time response, an investigation was made of special purpose integrated circuits. These integrated circuits make it possible to obtain a system small and inexpensive enough to be generally useful. An analysis of the architecture for these circuits is presented and a circuit which implements a critical portion of the algorithm was realized. This integrated circuit implements a dynamic time warp algorithm which is required in the pattern matching part of a high performance speech recognition system. With this chip the system is capable of recognizing 500 words in real time with high accuracy.