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发表于 2005-1-7 01:12:06
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PCM : Pulse code modulation
Definition: (PCM) A method by which an audio signal is represented as digital
data.Virtually all digital audio systems use PCM, including, CD, DAT, F1 format,
1630 format, DASH, DCC, and MD. Many people get confused because "CM" is
also slang for Sony's F1 format which stores PCM digital audio on videotape.
简单的说就是模拟声频信号转换成数字信号用的一种办法。google一下pcm audio
文章多了。。。不行就找数字模拟信号的书看看 |
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