PCR

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Revision as of 10:52, 23 November 2010 by J-b (talk | contribs)
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Abbreviation for Program Clock Reference.

For MPEG-2 standards, the clock rate is 27 MHz which clocks the video and audio.

If there is a drift rate higher than the spec of +/- 500ns, some decoders will lose 'Lip" sync and the color sub-carrier my drift.