Dolby Surround 7.1

Dolby Surround 7.1
Product type	Surround sound
Owner	Dolby Laboratories
Country	United States
Introduced	2010
Related brands	Dolby Digital
Markets	Worldwide
Previous owners	DTS
Website	Dolby official website

Dolby Surround 7.1 (sometimes called Dolby 7.1 surround sound) is a sound system by Dolby Laboratories which delivers theatrical 7.1 surround sound to movie-goers. It is the most recent addition to a family of audio compression technologies developed by Dolby known as Dolby Digital.

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 Walt Disney Pictures and Pixar.^[1]^[2] Dolby Surround 7.1 was used to mix in movies and display in movie theaters, from 2010 to 2014, until Dolby Atmos superseded it in 2018.

References

^ 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".