Speech processing using programmable VLSI

A single board speech processing architecture has been developed which incorporates the functions required to provide a general purpose speech input/output capability, including analog filtering, A/D and D/A conversion, signal processing, and data buffering. These functions are implemented using three new integrated circuits: a signal processing chip (SPC) performs the digital signal processing function, an analog input chip (AIC) provides a complete analog input channel, and an analog output chip (AOC) provides the analogous output channel. The resulting Peripheral Speech Processor (PSP) card is a flexible tool which can be applied to a variety of speech processing tasks.