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09.24.2008
Originally featured on BroadcastEngineering.com
Committee approves standard for AVC within ATSC transmission

As of Sept. 15, the Advanced Television Systems Committee approved and published A/72, which details the methodology to use Advanced Video Coding (AVC) within an ATSC DTV transmission.

AVC, which was developed by the ITU-T Video Coding Experts Group together with the ISO/IEC Moving Picture Experts Group, is also known as H.264 and MPEG-4 Part 10. The A/72 Standard defines constraints with respect to AVC, compression format restraints, low delay and still picture modes and bit stream specifications. It also specifies how CEA-708 closed-captioning is carried in an AVC bit stream.

The new standard is in two parts. Part 1 is titled “Video System and Characteristics of AVC in the ATSC Digital Television System," and Part 2 is titled “AVC Video Transport Subsystem Characteristics."

According to ATSC President Mark Richer, the standard will be “especially important” in countries that haven’t yet settled on a digital television standard. AVC also is an important part of the ATSC-M/H mobile, handheld standard and ATSC-NRT for non-real time program delivery.

For more information, visit www.atsc.org.



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