pulse-code modulation


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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.
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