Dolby Surround 7.1
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Dolby Surround 7.1 is a sound system by Dolby Laboratories which delivers theatrical 7.1 surround sound to movie-goers. It adds two new channels to current Dolby Digital 5.1. The first film to feature Dolby Surround 7.1 was 2010's Toy Story 3 by Disney and Pixar. While most theaters worldwide today, still exhibit mainly in Dolby Digital; virtually every film that is released, as of May 2018, is mixed into Dolby Surround 7.1; while some films are adopting more Dolby Atmos mixes. Dolby 7.1, is mainly exhibited in premium large-screen formats, such as AMC ETX, Cinemark XD, and Dolby Cinema. As James Cameron's Avatar 2 is slated for release on December 18, 2020, it will be solely released in Dolby Cinema, Dolby Atmos and Dolby Surround 7.1; becoming the first film, not to have a Dolby Digital soundtrack. Movie theaters will also replace most Dolby Digital sound systems with Dolby Surround 7.1 systems.
- Chacksfield, Marc (March 17, 2010). "Dolby unveils new 3D audio format for Toy Story 3". TechRadar.
Dolby has unveiled it is using a new audio codec for Pixar's latest movie Toy Story 3, called Dolby Surround 7.1
- Connelly, Brendon (March 16, 2010). "Pixar Futures: Toy Story 3 to Debut New Dolby Sound System, The Bear and the Bow Renamed?". /Film.
This system has been developed by Dolby, apparently in collaboration with Disney Pixar who will debut 7.1 with Toy Story 3 in “select cinemas”.