资料介绍
ADPCM (adaptive differential pulse code modulation) is a widely used voice coding standard for communications links within the worldwide telecommunications network. Within the ITU (International Telecommunication Union) several standards are defined, of which the two most
commonly used are G.721 and G.726. G.726 is a superset of G.721 and is used in this
document. The G.726 standard is used for digital cordless telephony, radio/wireless local loop,
and pair-gain.
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