Dolby Digital Plus Unveiled at NAB

Las Vegas, NV (April 20, 2004)--Dolby Laboratories has announced its Dolby Digital Plus technology at the National Association of Broadcasters (NAB) Show, taking place this week. An enhancement of traditional Dolby Digital, it is designed to accompany future video broadcasting formats. On April 2, the Advanced Television Systems Committee (ATSC) elevated Dolby Digital Plus (Enhanced AC-3) to Candidate Standard status as part of its work on next-generation broadcast and transport systems.
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Las Vegas, NV (April 20, 2004)--Dolby Laboratories has announced its Dolby Digital Plus technology at the National Association of Broadcasters (NAB) Show, taking place this week. An enhancement of traditional Dolby Digital, it is designed to accompany future video broadcasting formats. On April 2, the Advanced Television Systems Committee (ATSC) elevated Dolby Digital Plus (Enhanced AC-3) to Candidate Standard status as part of its work on next-generation broadcast and transport systems.

Dolby Digital Plus expands the capability of Dolby Digital technology, while maintaining compatibility with the over 37 million existing Dolby Digital 5.1 home theater systems. Future next-generation video coding systems, such as H.264, extend efficiencies in transmission to allow broadcasters to deliver increased capability and increased capacity in the same spectrum they are using today. Dolby Digital Plus is designed to meet the four major qualifications of a next-generation broadcast audio codec: backward compatibility, spectral efficiency, and cost savings, as well as compatibility with future formats.

"One of the reasons that Enhanced AC-3 (Dolby Digital Plus) was chosen was because of its compatibility characteristics with the current population of consumer devices. This new technology will provide the industry with expanded audio capabilities that can be used for broadcast, cable, satellite, and DVD applications," said ATSC president Mark S. Richer. "With this decision, the ATSC continues to evolve its standards to meet marketplace requirements."

"Dolby Digital continues to be the format of choice for the delivery of multichannel surround sound to consumers. With nearly half a billion products sold that incorporate Dolby Digital, more consumers than ever can enjoy a theatre-like experience in their homes," said Tom Daily, director of marketing, professional audio, Dolby Laboratories. "Dolby is committed to expanding the audience for the studios and broadcasters that count on Dolby Digital to deliver their programs."

Dolby Laboratories
www.dolby.com