Surround sound by Dolby

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Surround sound enhances the way you experience entertainment at home and in the cinema by creating the optimal environment for all of your favorite content.

Whether at home or in a movie theater, surround sound enhances the way you watch and listen to movies, music, and other entertainment. 

Conventional stereo creates dimensional sound in front of you. Dolby® surround sound expands on stereo to deliver sound from the sides, behind, and even above you — creating a natural, multidimensional sonic environment based on the science of how humans hear. 

With surround sound, your entertainment springs to life, putting you in the center of the action. 


At home 

You can find Dolby audio technologies in home theater products, tablets, smartphones, and PCs. 

Dolby audio in your home theater and mobile devices improves the power, clarity, and realism of sound by offering up to 7.1 discrete surround channels and up to 9.1 channels of sound. 

With surround sound advances that are the established industry standard, and found on every DVD, Blu-ray Disc™, and most HDTV broadcasts, you'll enjoy audio that digitally duplicates the original studio master right in your home. 


In the movie theater 

When you go to the movies at a cinema equipped with Dolby technologies, you'll experience state-of-the-art audio that completely envelops you in the onscreen story. 

Dolby Atmos® is the latest development in realistic cinema sound. It provides full creative freedom for filmmakers and ensures that you'll hear the soundtracks exactly as their creators intended. 

Dolby Surround 7.1 is a cinema audio format developed to bring more depth and realism to the cinema experience. By adding two additional discrete audio channels, Dolby Surround 7.1 takes the excitement of movies to the next level and truly immerses you in the action.

The evolution of cinema sound

Dolby pioneered the creation of cinema sound technology, from stereo to surround sound.

The 1970s: the stereo sound era

Surround sound changes the way you experience entertainment. Moments spring to life. Action happens all around.

The 1990s: surround sound emerges

Dolby Digital 5.1 surround sound created two "zones" in the theater — with speakers on the left and right. Dolby Surround 7.1 later divided the auditorium into four surround zones for added spatial dimension.

Now: 3D cinema sound

Dolby Atmos® is transforming the cinematic experience. Filmmakers can precisely move and place individual sounds anywhere in the theater, including overhead. More powerful bass further heightens the realism.

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