什么是转换PCM到ADPCM的算法？

What is the algorithm of converting pcm to adpcm?

推荐答案

ADPCM指一族玉米pression算法（大多用于语音玉米pression上的电话线）。有时也被称为G.721和G.732（及其他）。

ADPCM refers to a family of compression algorithms (mostly used for voice compression on phone lines). Sometimes known as G.721 and G.732 (and others).

请参阅 http://www.javvin.com/protocolG7xx.html 了解详情。该规范对于IMA ADPCM，这是微软在Windows实现所述一个可作为光扫描 在哥伦比亚大学 http://www.cs.columbia.edu/~hgs/audio / DVI /

See http://www.javvin.com/protocolG7xx.html for more information. The spec for IMA ADPCM, which is the one that Microsoft implemented on Windows is available as photo-scans at Columbia university http://www.cs.columbia.edu/~hgs/audio/dvi/

PCM是uncom pressed音频。

PCM is uncompressed audio.