pulse code modulation

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pulse code modulation:

see modulationmodulation,
in communications, process in which some characteristic of a wave (the carrier wave) is made to vary in accordance with an information-bearing signal wave (the modulating wave); demodulation is the process by which the original signal is recovered from the wave
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Pulse Code Modulation

(PCM) A method by which an audio signal is represented as digital data.

Virtually all digital audio systems use PCM, including, CD, DAT, F1 format, 1630 format, DASH, DCC, and MD. Many people get confused because "PCM" is also slang for Sony's F1 format which stores PCM digital audio on videotape.
References in periodicals archive ?
Modulation : Pulse Code Modulation ; Sync Signal : Pseudo Random Sync Code Generator Error Check Code : Off - Odd - Even - Hamming Operating Mode : Fast : 320 KHz / channel approximately Slow : 1.
The FT801's functionality sets new industry benchmarks, supporting 4-wire resistive touch sensing with built-in intelligent touch detection and an embedded audio processor that allows midi-like sounds, combined with pulse code modulation (PCM) for audio playback.
Pulse Amplitude/ Pulse Width/ Pulse Position Modulation /Demodulation Kit Pulse Code Modulation and demodulation kit QAM/DQAM Modulation/ Demodulation Kit QPSK/DQPSK Modulation / Demodulation Kit