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本文简要地回顾了PCM录音机的历史。对PCM录音机和模拟录音机在主要性能方面进行了比较,指出了PCM化的优点。叙述了PCM录音机的构成框图和纠错、检错方法。介绍了日本PCM录音机的现状,最后对SONY和松下两家公司为了适应录像机伴音高保真化、视频唱片和直播电视卫星伴音PCM化的形势而新研制的两种录像机电视伴音PCM化的VTR作了重点介绍。
This article briefly reviews the history of PCM recorders. The PCM recorder and analog recorder in the main performance were compared, pointed out the advantages of PCM. Describes the PCM recorder block diagram and error correction, error detection method. Introduced the status quo of Japanese PCM recorder, and finally made a comparison between two newly recoded video recorders PCMV VTR and SONY in order to meet the requirements of SONY and Panasonic in order to meet the requirements of high-fidelity video recorders, video recording and live TV satellite PCM Highlights.