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Equivalent pulse code modulation noise

From Wikipedia, the free encyclopedia

In telecommunication, equivalent pulse code modulation (PCM) noise is the amount of noise power on a frequency-division multiplexing (FDM) or wire communication channel necessary to approximate the same judgment of speech quality created by quantization noise in a PCM channel.

Note 1: The speech quality judgment is based on comparative tests.
Note 2: Generally, 33.5 dBrnC ±2.5 dB is considered the approximate equivalent PCM noise of a 7-bit PCM system.

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Transcription

References

 This article incorporates public domain material from the General Services Administration document: "Federal Standard 1037C". (in support of MIL-STD-188)


This page was last edited on 31 January 2021, at 18:42
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