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G.726

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Description

G.726 Voice codec audio  standard

Complete  Definition

G.726 is an ITU-T ADPCM speech codec standard covering the transmission of   voice at rates of 16, 24, 32, and 40 kbps. It was introduced to supersede both   G.721, which covered ADPCM at 32  kbps, and G.723, which  described  ADPCM for 24 and 40 kbps. G.726  also  introduced a new 16 kbps rate. The four bit rates associated with G.726 are   often referred to by the bit size of a sample, which are 2-bits, 3-bits,  4-bits,  and 5-bits respectively.

The most commonly used mode is 32 kbps, since this is half the rate of  G.711,  thus increasing the usable network capacity by 100%. It is primarily  used on  international trunks in the phone network. It also is the standard  codec used in  DECT wireless phone systems and is used on some Canon  cameras.


ITU  G.726 Status

Wikipedia Definition for   G.726

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