Talk:Differential pulse-code modulation: Difference between revisions

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m Signing comment by 130.75.31.216 - "Entropy is not reduced: new section"
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Hello,
 
the statement "because the entropy of the difference signal is much smaller than that of the original discrete signal" is wrong. The idea of a DPCM is to reduce the variance by building a difference signal. The entropy is not reduced (it is not changed at all by calculating the difference signal). Entropy is only reduced in the quantized signal (obviously). <!-- Template:Unsigned IP --><small class="autosigned">—&nbsp;Preceding [[Wikipedia:Signatures|unsigned]] comment added by [[Special:Contributions/130.75.31.216|130.75.31.216]] ([[User talk:130.75.31.216#top|talk]]) 09:21, 20 August 2018 (UTC)</small> <!--Autosigned by SineBot-->