Dolby Digital

(redirected from Dolby 5.1)

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 (Object Based)
Introduced in 2012, Atmos allows audio "objects" to be positioned in 3D space. For details, see Dolby Atmos.
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References in periodicals archive ?
Specifically, it extracts LPCM 2.0 or 5.1, Dolby 5.1 and DTS 5.1 audio and delivers it as digital S/PDIF Toslink.
It features 16GB internal storage and in terms of audio supports Dolby 5.1 Surround Sound and advanced DTS post-processing technology.
Its micro-dimming achieves great contrast and its Sports Mode optimizes live-action images with the help of studio-level Dolby 5.1 surround sound.
For audio, it not only has Dolby ATMOS for output, but supports Dolby 5.1 Capture using a microphone array - apparently a first among smartphones.
Camera (color, widescreen), Sergio Armstrong; editor, Herve Schneid; music, Federico Jusid; production designer, Estefania Larrain, art director, Mario Ricci; costume designer, Muriel Parra; sound (Dolby 5.1), Ruben Piputto; sound designer, Miguel Hormazabal; sound editor, Ivo Moraga.
The Emir Cup in Qatar recently saw the first regional use of the Sony 4K Stitch, the I-Movix X10 UHD 4K ultra-motion camera and a live production using Dolby 5.1. BroadcastPro ME finds out how Al Kass Network integrated all of these technologies to create a superlative viewing experience
In playback situations in which the set top box is connected to a home audio receiver, it is desirable to serve not only a higher bitrate audio stream along with the HD 1080p HLS stream, but also a different audio codec, for example Dolby 5.1 audio.
The device includes Dolby Laboratories Inc.'s Dolby 5.1 audio technology and HTC's latest Sense 7 user interface with improved location-based services.
There is an array of on-air enhancements, including the first ever broadcast of an ICC event in Dolby 5.1 Surround Sound, and compelling graphic presentation to accompany the insightful and trusted voices of its expert group of commentators.
There are three versatile reception rooms to Park Farm including a sitting room with access to the orangery, a snug dining room with inglenook ?replace rebuilt out of 100 year old reclaimed bricks and ?tted with a wood-burner, and a large study/cinema room with provision for a ceiling mounted projector and an electric drop down screen which is fully wired with Dolby 5.1 surround sound.
The device's drivers support Dolby 5.1 surround sound, which sounds rather good blasting out of the single main speaker on the back.
Incorporating unidirectional stadium style seating and a digital 25,000 watt Dolby 5.1 surround sound system, the Bishop Planetarium Theater is capable of accommodating a wide range of programs, from lectures to film series to live performances.