adaptive differential pulse-code modulation


Also found in: Acronyms.

adaptive differential pulse-code modulation

[ə¦dap·tiv ‚dif·ə¦ren·chəl ′pəls‚cōd ‚mäj·ə‚lā·shən]
(communications)
A method of compressing speech and music signals in which the transmitted signals represent differences between input signals and predicted signals, and these predicted signals are synthesized by predictors with response functions representative of the short- and long-term correlation inherent in the signal. Abbreviated ADPCM.
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