Dolby Digital

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Dolby Digital

A family of digital audio encoding technologies from Dolby used in movie theaters, home theaters and video games. Introduced in the movie "Batman Returns" in 1992, Dolby Digital has been the most widely used surround sound system in the world. Following are the major formats. See Dolby Surround and surround sound.

Dolby Digital - 5.1 Channels
Five discrete channels of audio plus subwoofer (see surround sound). Dolby Digital employs Dolby's AC-3 coding and compression technology (see AC-3).

Dolby Digital EX - 6.1 and 7.1 Channels
Co-developed with Lucasfilm THX, Dolby Digital EX adds one or two matrixed rear center channels. Formerly "Dolby Digital Surround EX," the first film to use this enhanced version of Dolby Digital was "Star Wars: Episode I - The Phantom Menace," in 1999.

Dolby Digital Plus - 6.1 and 7.1 Channels
Part of the Blu-ray specification, Dolby Digital Plus supports higher bit rates than EX. Also called "DD+" and "Enhanced AC-3" (E-AC-3).

Dolby TrueHD - 7.1 on Blu-ray
Providing up to 14 discrete sound channels in the complete specification, TrueHD used in Blu-ray movies delivers stereo at 192 kHz and up to eight channels (7.1) at 96 kHz. Introduced in 2006, Dolby TrueHD competes with DTS-HD for high-definition Blu-ray audio formats. HDMI 1.3 cables are required. See Blu-ray, DTS and HDMI.

Dolby Atmos - 9.1 Channels
Introduced in 2012, Atmos supports 128 audio tracks and up to 64 speakers in the cinema, although home theaters require at least a 5.1 system plus two "height speakers" that can either be ceiling mounted or "upward firing." Transformers: Age of Extinction was the first Atmos Blu-ray movie. Touted as "object-based surround sound," rather than "front and back surround," DTS:X was introduced with a similar approach (see DTS).
References in periodicals archive ?
The new complex includes a Movie Tavern Xtreme (MT-X), an enhanced entertainment auditorium featuring a large 3-story silver screen, 2D and RealD 3D capability, and the Dolby Atmos audio format.
40:1 Rating: R for strong violence, language and some sexuality Languages/Subtitles: English SDH, French and Spanish Subtitles Sound: Dolby Atmos Run Time: 1 hour, 56 minutes
Tenders are invited for XIIth Plan Scheme Infrastructure Development Programme relating to Film Sector Up gradation of Sirifort Complex New Delhi i SH I SITC of Dolby Atmos Digital Sound System for Auditorium II ii SH II SITC of Dolby Digital Processor in Auditorium III iii SH III SITC of PA system with amplifier Speakers Woofers etc in Audi II and III
Tech and music enthusiasts can watch the performance, which was filmed using Jaunt's proprietary 360 degree, stereoscopic 3D cameras and 3D sound-field microphones mixed in Dolby Atmos, to give viewers the sense of being right onstage with Big Sean as he performed "Blessings" at REVOLT Studios in Hollywood, CA.
In the over 300-seat premium auditorium, which features a huge wall-to-wall screen and plush seating for maximum comfort, the audio system has been configured to meet the requirements of the Dolby Atmos sound technology.
It supports 4K high frame rate DCI mastering, including Dolby Atmos .
40:1 Rating: PG-13 for war violence including intense sequences of brutality, and for brief language Technical Info: English Dolby Atmos (7.
These signature auditoriums feature THX Certification, innovative patented deep curved screens, 64-channel Dolby Atmos sound, and America's first and only 4K laser projector.
Christie, the world s dominant brand in the digital cinema projection market, announced that Grupo Cinemex, the sixth largest cinema chain worldwide, is installing Christie Vive Audio surround sound solutions in their current CinemeXtremo auditoriums powered by Dolby Atmos sound technology.
Now the Kaleidescape Store delivers the best movies as digital downloads, with the stunning quality of Blu-ray and support for Dolby TrueHD, Dolby Atmos, and DTS-HD Master Audio multichannel soundtracks.
Dolby Atmos and Meyer Sound technology have also been incorporated into the theater.
Dolby Atmos provides captivating, multidimensional sound to bring consumers deeper into the story by delivering an experience that moves sound throughout the room with amazing clarity and true-to-life detail.