pulse-code modulation

(redirected from IMA ADPCM)

pulse-code modulation

[′pəls ¦kōd ‚mäj·ə′lā·shən]
(communications)
Modulation in which the peak-to-peak amplitude range of the signal to be transmitted is divided into a number of standard values, each having its own code; each sample of the signal is then transmitted as the code for the nearest standard amplitude. Abbreviated PCM.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The high performance codec features audio capture within 50 ms, ensuring that voice commands are not clipped, and it encodes audio to the IMA ADPCM standard to maintain high quality over a low bandwidth, low power wireless link.