Definition

ADPCM (adaptive differential pulse-code modulation)

Part of the Storage hardware glossary:

ADPCM (adaptive differential pulse-code modulation) is a technique for converting sound or analog information to binary information (a string of 0's and 1's) by taking frequent samples of the sound and expressing the value of the sampled sound modulation in binary terms. ADPCM is used to send sound on fiber-optic long-distance lines as well as to store sound along with text, images, and code on a CD-ROM.

This was last updated in April 2005
Posted by: Margaret Rouse

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