Difference between revisions of "PCR"

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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 deocders will lose 'Lip" sync and the color subcarrier my drift.
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Abbreviation for Program Clock Reference.
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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 may drift.
 +
[[Category:Glossary]]

Latest revision as of 11:56, 25 December 2010

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 may drift.