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]
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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.