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However, whereas a 5.1 surround sound system combines both surround and rear channel effects into two channels (commonly configured in home theatre set-ups as two rear surround speakers), a 7.1 surround system splits the surround and rear channel information into four distinct channels, in which sound effects are directed to left and right ...
For Dolby Atmos, the nomenclature differs slightly by an additional number at the end, that represents the number of overhead or Dolby Atmos enabled speakers: a 7.1.4 Dolby Atmos system is a conventional 7.1 layout with four overhead or Dolby Atmos enabled speakers. [20] [21] The simplest Dolby Atmos setup is 3.1.2, [22] the most complex one is ...
Introduced for theatrical film releases in 2012 by Dolby Laboratories under the trademark name Dolby Atmos. [45] Dolby Atmos (and other Microsoft Spatial Sound engines; see AudioObjectType in SpatialAudioClient.h) additionally support a virtual "8.1.4.4" configuration, to be rendered by a HRTF. [46]
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.
In April 2012, Dolby introduced its Dolby Atmos, a new cinematic technology adding overhead sound, first applied in Pixar's motion picture Brave. [16] In July 2014, Dolby Laboratories announced plans to bring Atmos to home theater. The first television show to use the technology on disc was Game of Thrones.
Dolby Surround (1982) was the first home audio system to use a rear channel. It and its successor, Dolby Pro Logic (1987), used a single rear surround channel, but often using two speakers connected in anti-phase or a dipole radiator , as shown in the speaker configuration diagram to the right in gray.