The attached processor for speech

The Attached Processor for Speech (APS) has been designed to be a low-cost hardware solution for several real-time speech processing problems. Particular emphasis was placed upon the implementation of high-speed discrete utterance recognition algorithms. This paper describes APS, how it was implemented in a minimal amount of off-the-shelf hard-ware, and how it was designed to be efficient for dynamic programming algorithms. The processor executes at a rate of four million instructions per second (4 MIPS), which makes its dynamic programming thruput rate about seventeen times that of a typical conventional 16-bit microprocessor.