Dolby®Digital andDolby®Digital Plus Surround
@
Audio Addicts LLC.
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Audio Addicts and Dolby Digital
The established standard for home theater, broadcast, and cinema surround sound, Dolby
Digital has redefined the entertainment experience for audiences around the world. At the movies and in your home, Dolby Digital makes true-to-life soundscapes possible.
A Global Standard
Every DVD worldwide and all HD broadcasts in the United States use Dolby® Digital (also known as AC-3). Dolby Digital 5.1 has evolved into Dolby Digital Plus, delivering up to 9.2, 7.2,
9.1, and 7.1, channels of surround sound in devices ranging from TVs to mobile phones.
Cinema, TV, DVDs, and Games
The same audio technology that revolutionized the cinema enables the sound in all DVDs and US HDTV broadcasts. Even many video games feature Dolby Digital surround sound.
The Role of Each Channel in Dolby® Digital Sound

The channels in a Dolby® Digital audio mix serve distinct purposes. The three front channels
(Left, Center, and Right) provide crisp, clean dialogue and accurate placement of onscreen sounds. The twin surround channels (Left Side Surround, Right Side Surround,Left Back
Surround and Right Back Surround) create the sense of being in the middle of the action.
The Low-Frequency Effects (LFE) channel delivers deep, powerful bass effects that can be felt as well as heard. As it needs only about one-tenth the bandwidth of each of the other channels, the LFE channel is referred to as a ".1" channel or “.2” in duel bass applications.
Compatible with the Future
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As new audio formats like Dolby Atmos™ appear, you can be sure that your Dolby Digital content will remain compatible for years to come.
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9.2 – Dolby®Digital Surround – Floor Standing Speaker, Monitor Speaker, On Wall Speaker and On Ceiling Speakers.
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9.1 – Dolby®Digital Surround – Floor Standing Speaker, Monitor Speaker, On Wall Speaker and On Ceiling Speakers.
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7.2 – Dolby®Digital Surround – Floor Standing Speaker, Monitor Speaker, On Wall Speaker and On Ceiling Speakers.
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Dolby®Digital and logos are registered trademarks of Dolby Laboratories.
© 2013 Dolby Laboratories. All rights reserved.