Difference between revisions of "Pulse Code Modulation"

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'''Pulse Code Modulation''' ('''PCM''') is a method of recording sound as digital data. The amplitude of the audio signal is sampled at a regular [[sampling frequency]], with a fixed [[bitdepth]].
 
 
 
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'''Pulse Code Modulation''' ('''PCM''') is a method of recording sound as digital data. The amplitude of the audio signal is sampled at a regular [[sampling rate]], and [[Quantization|quantized]] with a fixed [[bit depth]].
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This technology was created by Alec Reeves in 1937.
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== See also ==
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* [[Pulse-Density Modulation]] (PDM)
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* [[Pulse-Amplitude Modulation]] (PAM)
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* [http://web.archive.org/web/20030406235542/http://homepage.ntlworld.com:80/quantium/ahr/pcm.htm A page on PCM history] (Archived as of April 6, 2003)
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[[Category:Technical]]

Latest revision as of 05:17, 16 September 2020

Pulse Code Modulation (PCM) is a method of recording sound as digital data. The amplitude of the audio signal is sampled at a regular sampling rate, and quantized with a fixed bit depth.

This technology was created by Alec Reeves in 1937.

See also[edit]