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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 | 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. | |||
[[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.