Dolby Surround 7.1 (sometimes called Dolby 7.1 surround sound) is a

surround sound Surround sound is a technique for enriching the fidelity and depth of sound reproduction by using multiple audio channels from speakers that surround the listener ( surround channels). Its first application was in movie theaters. Prior to ...

system by

Dolby Laboratories Dolby Laboratories, Inc. (Dolby Labs or simply Dolby) is a British-American technology corporation specializing in audio noise reduction, audio data compression, audio encoding/compression, spatial audio, and high-dynamic-range television (H ...

which delivers theatrical

7.1 surround sound 7.1 surround sound is the common name for an eight-channel surround audio system commonly used in home theatre configurations. It adds two additional speakers to the more conventional six-channel ( 5.1) audio configuration. As with 5.1 surround ...

to movie-goers. It is the most recent addition to a family of audio compression technologies developed by Dolby known as

Dolby Digital Dolby Digital, originally synonymous with Dolby AC-3 (see below), is the name for a family of audio compression technologies developed by Dolby Laboratories. Called Dolby Stereo Digital until 1995, it is lossy compression (except for Dolby Tr ...

. It adds two new rear surround channels to Dolby Digital 5.1. The first film to feature Dolby Surround 7.1 was 2010's ''

Toy Story 3 ''Toy Story 3'' is a 2010 American animated comedy-drama film produced by Pixar Animation Studios for Walt Disney Pictures. The third installment in the Toy Story (franchise), ''Toy Story'' series, it was directed by Lee Unkrich, the editor ...

'' by

Walt Disney Pictures Walt Disney Pictures is an American film Film production company, production company and subsidiary of Walt Disney Studios (division), the Walt Disney Studios, a division of Disney Entertainment, which is owned by the Walt Disney Company. The st ...

and

Pixar Pixar (), doing business as Pixar Animation Studios, is an American animation studio based in Emeryville, California, known for its critically and commercially successful computer-animated feature films. Pixar is a subsidiary of Walt Disney ...

References

External links

Dolby 7.1 webpage

{{Dolby Laboratories Surround sound Film sound production Dolby Laboratories Audiovisual introductions in 2010 American brands

See also

References

External links