What is the algorithm of converting pcm to adpcm?

邮差的信 提交于 2019-12-11 06:39:09

问题


What is the algorithm of converting pcm to adpcm?


回答1:


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).

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 is uncompressed audio.



来源:https://stackoverflow.com/questions/2215874/what-is-the-algorithm-of-converting-pcm-to-adpcm

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