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PCM是法国人A.H.Reeves在1937年发明的,但数字技术在声频中的应用大概从60年代初开始。1962年M.R.Schroeder发表了用数字全通网络构成人工混合器的方案。为了解决多道录音中动态范围和噪声等问题,刺激了PCM录音机的发展。在60年代后期日本NHK研制成功旋转磁头方式的PCM录音机。70年代初,英国BBC和日本Sony公司研制成功固定磁头方式的PCM录音机,70年代后期到80年代初期研制成功数字声频唱片系统和数字调音台。于是,演播室和录音室
PCM was invented by the French A.H. Reeves in 1937, but the application of digital technology in audio probably started in the early 1960s. In 1962 M.R. Schroeder published a scheme for constructing a manual mixer with a digital all-pass network. In order to solve the multi-channel recording of dynamic range and noise and other issues, stimulated the development of PCM recorder. In the late 1960s, Japan’s NHK successfully developed a rotary head mode PCM recorder. The early 70s, the British BBC and Japan’s Sony Corporation successfully developed a fixed-head PCM recorder, the late 70s to the early 80s developed a successful digital audio recording system and digital mixer. So, studio and studio