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What does PCR stand for?

PCR stands for Program Clock Reference (DVB)

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Samples in periodicals archive:

Support for IPTV applications will include monitoring and analyzing MPEG-2 streams, accessing them via Internet Group Multicast Protocol (IGMP) and performing true QoS analysis; including the ability to verify packet loss, packet jitter, media delivery index (MDI), distance error and period errors, program clock reference (PCR) jitter, TR 101 290-based statistics and analyze programs and their packet IDs (PIDs) per stream.
John Amaral, Artel's CTO commented on the new functionality saying, "The keys to the enhancement of Artel's VideoStorm(TM) technology, which powers the Cross Stream product line, are its ability to deal with variable bit rate streams coming from statistical multiplexers and to perform program clock reference (PCR) correction at the demultiplexing edge of the headend network.
NYSE: TEK), the market leader in video test measurement and monitoring solutions, today announced that Finland's Teleste, the leading European supplier of network solutions for cable operators worldwide, has purchased a video test solution to identify the timing instability of compressed digital video signals, commonly referred to as Program Clock Reference (PCR) jitter.