The DAT Conference. Its Activities and Results

Abstract
Trials to improve the sound quality and functions of various types of audio equipment utilizing digital signal processing technology have been actively pursued recently. A method which records digital audio into a cassette type VTR was already standardized as a PCM Audio Processor and in use since 1979. In 1981 Compact Disc system was standardized and has been rapidly permeating through the market as a replacement for conventional disc records.

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