Dolby Digital Plus Unveiled at NAB; New Expanded Version of Dolby Digital Confirmed as Candidate Standard by ATSC.Business Editors/High-Tech Writers NAB2004 LAS VEGAS--(BUSINESS WIRE)--April 19, 2004 Dolby Laboratories “Dolby” redirects here. For other uses, see Dolby (disambiguation). Dolby Laboratories, Inc. (Dolby Labs) (NYSE: DLB) is a USA-based company specializing in audio compression and reproduction. announced today at the National Association of Broadcasters (NAB) Show its Dolby(R) Digital Plus technology, an enhancement of traditional Dolby Digital A digital audio encoding system from Dolby used in movie and home theaters. First used in 1995, Dolby Digital employs Dolby's AC-3 (Audio Coding-3) coding and compression technology and is the standard for DVD-Video and HDTV. 5. , designed to accompany future video broadcasting formats. On April 2, the Advanced Television Systems Committee (ATSC (Advanced Television Systems Committee) An international digital television (DTV) standard adopted by the U.S., Canada, South Korea, Taiwan and Argentina. ) elevated Dolby Digital Plus Dolby Digital Plus (DD+), also known as E-AC-3, is an audio compression system that was developed specifically for the introduction of HDTV and HD DVD/Blu-ray Disc. It is a development of the Dolby Digital (AC-3) audio compression system. It supports data rates up to 6. (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 existing home theater An audio/video entertainment center that has a large-screen TV and hi-fi system with three speakers in the front (left, right and center) and left and right speakers in the rear. Starting in the early 1990s, video inputs were added to stereo receivers and preamplifiers. 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. Backward Compatibility -- Set-top boxes with Dolby Digital Plus will work with the over 37 million Dolby Digital 5.1 systems in use by viewers today. Broadcasters will want to take advantage of this extensive installed base. Spectral Efficiency -- Dolby Digital Plus is even more efficient than the original Dolby Digital and maintains an extremely high quality while reducing the size of the overall program package. Broadcasters will want an audio coding system that complements the improved efficiency of the new video coding systems. Cost Savings -- Broadcasters looking at next-generation systems are presented with a variety of options that seem to require a choice between new features and backward-compatibility. Dolby Digital Plus is less complex and requires fewer changes to the existing infrastructure than other codecs The following is a list of codecs. Audio codecs Non-compression formats
Future Compatibility -- Advancements in video coding and in the storage capabilities of optical and hard disk drive (HDD (Hard Disk Drive) See hard disk and HDD caddy. HDD - hard disk drive ) media pave the way for the success of new high-definition packaged media. Dolby Digital Plus is a candidate for such high-definition packaged media formats, making it an excellent choice for broadcasters wishing to be aligned with these new formats while maintaining compatibility with decoding systems that will play them. "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 DVD: see digital versatile disc. DVD in full digital video disc or digital versatile disc Type of optical disc. The DVD represents the second generation of compact-disc (CD) technology. 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 Using two or more paths for transmission or processing. It can refer to a variety of architectures including (1) multiple I/O channels between the CPU and peripheral devices, (2) multiple wires in a cable, (3) multiple "logical" channels within a single wire or fiber or (4) multiple 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 Digital Plus provides an optimal solution for broadcasters by expanding upon the capabilities of Dolby Digital for next-generation broadcast systems. For more information about Dolby Digital Plus, please visit Dolby at booth SU10443 at the NAB Show in Las Vegas. About Dolby Laboratories Dolby Laboratories creates technologies that intensify and enhance the entertainment experience. For nearly four decades, Dolby has been instrumental in defining high-quality audio and surround sound in cinema, broadcast, home audio systems, cars, DVDs, headphones Head-mounted speakers. Headphones have a strap that rests on top of the head, positioning a pair of speakers over both ears. For listening to music or monitoring live performances and audio tracks, both left and right channels are required. , games, televisions, and personal computers. Based in San Francisco with European headquarters in England, the privately held company privately held company A firm whose shares are held within a relatively small circle of owners and are not traded publicly. has entertainment industry liaison offices in New York New York, state, United States New York, Middle Atlantic state of the United States. It is bordered by Vermont, Massachusetts, Connecticut, and the Atlantic Ocean (E), New Jersey and Pennsylvania (S), Lakes Erie and Ontario and the Canadian province of and Los Angeles, and licensing liaison offices in Hong Kong, Shanghai, Beijing, and Tokyo. For more information about Dolby Laboratories or Dolby technologies, please visit www.dolby.com. Dolby and the double-D symbol are registered trademarks of Dolby Laboratories. All other trademarks remain the property of their respective owners. S04/15362 |
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