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01.31.2012
Originally featured on BroadcastEngineering.com
AMWA releases AS-11 - MXF for contribution

The AMWA has ratified the Application Specification, AS-11: MXF for Contribution. The specification constrains MXF standards as a format that a post house can use to deliver HD or SD content to broadcasters as files rather than videotape.

AS-11 supports SD video encoded as D-10, 50Mb/s, and HD as AVC-Intra Class 100. Audio can be PCM, AC-3 or Dolby E. AS-11 allows for program segmentation and supports Descriptive Metadata with a minimal core metadata scheme. AS-11 is compatible with AS-03, MXF for Delivery.

The development of AS-11 meets the requirements of a group of UK broadcasters, the Digital Production Partnership, and includes BBC, ITV and Channel 4, with representation from other broadcasters and independent partners.

The group wanted a common file format for content delivery as it moves away from videotape for the delivery of programs from production companies. AS-03 met many of the requirements, but AS-11 adds support for AVC Intra 100, a codec it is believed will meet future needs for HD content, including 10-bit and Intra coding.

The specification can be downloaded from the AMWA web site.



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