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Adaptive Differential Pulse Code Modulation

(A-D-P-C-M)

A variation of pulse code modulation (PCM) that only sends the difference between two adjacent samples. This produces a lower bit rate and is sometimes used to effectively compress a voice signal, allowing both voice and digital data to be sent where only one would normally be sent.

More Information

ADPCM CODECS

Last Changed: Thursday, January 19, 2006
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