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08.05.2005
Originally featured on BroadcastEngineering.com
ATSC approves enhanced AC-3 digital audio standard

The Advanced Television Systems Committee has approved an enhanced version of its AC-3 digital audio standard to provide improved performance and flexibility.

Enhanced AC-3 (A52B) provides expanded audio capabilities for broadcast, cable, satellite, DVD and other applications.

ATSC first standardized the AC-3 digital audio system in November 1994. AC-3 is now widely used in digital television systems around the world. Dolby Laboratories submitted enhanced AC-3 to the ATSC for consideration in response to a Request for Information published in December 2002.

E-AC-3 offers new coding tools that fundamentally improve performance and new features that allow operation over a wider range of bit-rates and numbers of channels. E-AC-3 can be converted into AC-3 for playback compatibility on existing consumer A/V decoders.

For more information, visit www.atsc.org/standards.html.

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