Adaptive Differential Pulse Code Modulation: A compression technique that encodes only the difference between sequential samples.

Adaptive differential pulse code modulation. Process by which analog voice samples are encoded into high-quality digital signals.

Abbreviation for adaptive differential pulse-code modulation.

Jensens Internet Dictionary Adaptive Pulse Code Modulation of audio waveform sampling that records the difference between samples is recorded rather than the actual values. This increases fidelity with lower resolution than conventional PCM. (See also Audio and PCM )

Adaptive Differential Pulse Code Modulation. See pulse code modulation.

<communications> (ADPCM) A compression technique which records only the difference between samples and adjusts the coding scale dynamically to accomodate large and small differences. ADPCM is simple to implement, but introduces much noise. [Used where? Does the Sony minidisk use ADPCM or ATRAC?] Acronym: ADPCM (01 Apr 1998)

adaptive differential pulse code modulation.

Adaptive Differential Pulse Code Modulation (ADPCM) is an audio file conversion encoding method that quantizes the difference between a sound signal and a prediction that has been made of that sound s [..]

Adaptive Differential Pulse Code Modulation ADCPM is a form of PCM that produces the digital signal at a lower bit rate than does standard PCM. ADPCM records only the difference between samples rather than sampling the entire waveform. ADPCM can reduce the resultant signal's digital bandwidth by half that of PCM.