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Dolby Digital Plus
Last modified: Friday, November 18, 2005 

Dolby Digital Plus is the next-generation audio technology for all high-definition programming and media. Built on Dolby Digital, the multichannel audio standard for DVD and HD broadcasts worldwide, Dolby Digital Plus was designed for the delivery formats of the future, but remains fully compatible with all current A/V receivers. [Source: Dolby Technologies]

Dolby Digital Plus supports two important new digital connections:  High-Definition Media Interface (HDMI) and IEEE 1394 (FireWire). Other features of Dolby Digital Plus include:

  • Multichannel sound with discrete channel output.
  • Channel and program extensions can carry multichannel audio programs of up to 7.1 channels.
  • Supports data rates as high as 6 Mbps.
  • Bit rate performance of at least 3 Mbps on HD DVD and up to 4.7 Mbps on Blu-ray Disc.
  • Supported by HDMI, the new single-cable digital connection for high-definition audio and video.

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For internet.com pages about Dolby Digital Plus . Also check out the following links!

Related Links

Surround Sound Speaker Placement 
This SoundStage article discusses issues and common problems associated with surround sound speaker positioning.

Dolby Laboratories home page
Offers links to company information, news and products, as well as technical information about Dolby Digital, DVD, and Dolby Surround and multimedia.

How to Buy Surround Sound
Sound & Vision Online provides the simple steps that will take you from just thinking about a great home theatre to actually having one.

Surround Sound Past, Present, and Future (PDF)
A history of multichannel audio from mag stripe to Dolby Digital. The first commercially successful multichannel sound formats were developed in the early 1950s for the cinema. At the time, stereophonic sound, a concept new to the public, was heavily promoted along with new wide-screen formats by a film industry feeling threatened by the rapid growth of television.

related categories

Audio

Surround Sound

related terms

Dolby Digital

Dolby Digital EX

Dolby Laboratories

Dolby Pro Logic IIx

Dolby Surround

Dolby TrueHD

DTS

DTS-ES

HDMI

HDTV

surround sound

TruSurround

TruSurround XT


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