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pulse code modulation

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pulse code modulation: see modulation modulation, 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
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(data)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.
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The decoded sound tracks from the blu-ray disk and the elements of audio that are downloaded or streamed through internet or either internally generated by the blu-ray player are decoded in the form of Pulse code modulation digital signals.
Blu-Ray Disk Technology Decoding Process by Tape4backup / Computers and Internet community
In order to lighten the circuitry, the compression ratio was limited to one-third (1/3), and a differential pulse code modulation (DPCM)(*2) scheme featuring simple structures was adopted.
Fujitsu Develops SmartCODEC(TM) Streamlined Image Compression ... by JCN Newswires
Other features include its Dynamic Acoustics technology, which allows the piano to replicate the direct sounds of hammers striking string, delivering the reflective and resonating sounds of an acoustic piano performance, and its Pulse Code Modulation, which includes settings for grand, upright and electric piano and also features the tones of a harpsichord, pipe organ and strings.
Meisel introduces digital tuner/metronome combination. (Music ... by American Music Teacher
 
 
 
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