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Dolby Digital
(redirected from Dolby Digital Surround EX)

   Also found in: Wikipedia 0.02 sec.
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. Dolby TrueHD and DTS-HD are the two high-definition Blu-ray audio formats. HDMI 1.3 cables are required. See Blu-ray, DTS and HDMI.


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The new system, called Dolby Digital Surround EX, was developed by an unusual partnership of Lucasfilm's THX division and Dolby Laboratories in San Francisco.
It features digital sound in all auditoriums, has two THX-certified Dolby Digital Surround Ex auditoriums, and 13 HPS-4000 auditoriums.
Ottosson Dolby Digital Inglourious Basterds (Universal Pictures) Wylie Stateman Dolby Digital Star Trek (Paramount Pictures) Mark Stoeckinger and Alan Rankin Dolby Digital Up (Walt Disney Pictures) Michael Silvers and Tom Myers Dolby Digital Surround EX Nominees for Achievement in Sound Mixing Include: Avatar (Twentieth Century-Fox Film Corporation) Christopher Boyes, Gary Summers, Andy Nelson, and Tony Johnson Dolby Digital The Hurt Locker (Voltage Pictures) Paul N.
 
 
 
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