pulse-code modulation

[puhls-kohd] /ˈpʌlsˌkoʊd/
noun, Telecommunications.
1.
a form of modulation that transforms a wave-form, as an audio signal, into a binary signal in which information is conveyed by a coded order of pulses for transmission, storage on a disk, or processing by a computer.
Abbreviation: PCM.
Origin
1945-50
British Dictionary definitions for pulse code modulation

pulse code modulation

noun
1.
(electronics) a form of pulse modulation in which the information is carried by coded groups of pulses pcm
pulse code modulation in Technology

data
(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.
(1995-02-09)