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 sound, 7.1 surround sound positional audio uses the standard front left and right, center, and LFE (subwoofer) speaker configuration. 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 surround channels (SL and SR), plus two rear surround channels (SBL and SBR).
Label for 7.1 extended surround sound
In a 7.1 surround sound home theatre set-up, the surround speakers are placed to the side of the listener's position and the rear speakers are placed behind the listener.[1][2] In addition, with the advent of Dolby Pro Logic IIz and DTS Neo:X, 7.1 surround sound can also refer to 7.1 surround sound configurations with the addition of two front height channels (LH and RH) positioned above the front channels or two front wide channels positioned between the front and surround channels.[3][4]
The history of electronic music includes the evolution of multi-channel playback in concert (arguably the real roots of "surround sound" for cinema) and for a considerable time the 8-channel format was a de facto standard. This standardisation was fostered, in great measure, by the development of professional and semi-professional 8-track tape recorders—originally analog, but later manifesting in proprietary cassette formats by Alesis and Tascam. The speaker configuration, however, is much less traditional, and unlike cinematic reproduction systems, there is no hard-and-fast "standard". In fact, composers took (and to some extent still take) considerable interest in experimenting with speaker layouts. In these experiments, the goal is not limited to creating "realistic" playback of believably natural sonic environments. Rather, the goals are often simply to experience and understand the psychoacoustics effect created by variations on source and imaging.
^Flinn, Ryan (2010-03-23). "Pixar Gets Dolby to Invent 'Rain of Sound' Technology to Match 3-D Movies". Bloomberg. Retrieved 2011-05-22.
^. Dolby Laboratories. 2010-11-10. Archived from the original on 2011-07-10. Retrieved 2011-05-22.
^Giardina, Carolyn (2011-03-28). "'Pirates of the Caribbean,' 'Kung Fu Panda 2' to Use Dolby 7.1 Surround Sound". The Hollywood Reporter. from the original on 30 March 2011. Retrieved 2011-03-29.
April 12, 2024
surround, sound, common, name, eight, channel, surround, audio, system, commonly, used, home, theatre, configurations, adds, additional, speakers, more, conventional, channel, audio, configuration, with, surround, sound, positional, audio, uses, standard, fron. 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 sound 7 1 surround sound positional audio uses the standard front left and right center and LFE subwoofer speaker configuration 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 surround channels SL and SR plus two rear surround channels SBL and SBR Label for 7 1 extended surround soundIn a 7 1 surround sound home theatre set up the surround speakers are placed to the side of the listener s position and the rear speakers are placed behind the listener 1 2 In addition with the advent of Dolby Pro Logic IIz and DTS Neo X 7 1 surround sound can also refer to 7 1 surround sound configurations with the addition of two front height channels LH and RH positioned above the front channels or two front wide channels positioned between the front and surround channels 3 4 Contents 1 History 1 1 Home entertainment 1 2 Cinema 1 3 Music 2 See also 3 ReferencesHistory editHome entertainment edit The Blu ray Disc and the HD DVD home video formats provide up to eight channels of lossless DTS HD Master Audio Dolby TrueHD or uncompressed LPCM audio at 96 48 kHz 24 16 bit or lossy Dolby Digital Plus up to 48 kHz at 1024 kilobytes per second Cinema edit While some movies have been remixed to 7 1 audio tracks on Blu ray Discs for home cinema 5 the first discrete theatrical 7 1 soundtrack was Toy Story 3 in 2010 6 followed by Step Up 3D Disney announced that they will use 7 1 surround for their future 3D releases citation needed Recent titles include Megamind Tangled Tron Legacy Gnomeo and Juliet Mars Needs Moms Gulliver s Travels and The Chronicles of Narnia The Voyage of the Dawn Treader 7 In 2011 additional movies were released with theatrical 7 1 audio including Thor Pirates of the Caribbean On Stranger Tides Kung Fu Panda 2 Super 8 Green Lantern Cars 2 Transformers Dark of the Moon Captain America The First Avenger In 2012 Pizza a Tamil film was released with this theatrical 7 1 audio All these titles are exhibited in the Dolby Surround 7 1 theatrical format 8 7 1 surround sound Music edit This section does not cite any sources Please help improve this section by adding citations to reliable sources Unsourced material may be challenged and removed March 2019 Learn how and when to remove this template message The history of electronic music includes the evolution of multi channel playback in concert arguably the real roots of surround sound for cinema and for a considerable time the 8 channel format was a de facto standard This standardisation was fostered in great measure by the development of professional and semi professional 8 track tape recorders originally analog but later manifesting in proprietary cassette formats by Alesis and Tascam The speaker configuration however is much less traditional and unlike cinematic reproduction systems there is no hard and fast standard In fact composers took and to some extent still take considerable interest in experimenting with speaker layouts In these experiments the goal is not limited to creating realistic playback of believably natural sonic environments Rather the goals are often simply to experience and understand the psychoacoustics effect created by variations on source and imaging Some of the first live concerts to appear were Chris Botti in Boston in 2009 and Satchurated in 2012 See also edit5 1 surround sound Ambisonics Timeline of audio formatsReferences edit 5 1 vs 7 1 Channel Home Theater Receivers Which is Right For You Retrieved 2012 06 04 Help Guide Installing 7 1 channel speaker system using surround back speakers helpguide sony net Retrieved 2023 06 12 Dolby Pro Logic IIz Dolby Laboratories Archived from the original on 2011 09 26 Retrieved 2011 10 07 Help Guide Names and functions of speakers helpguide sony net Retrieved 2023 06 12 7 1 Blu ray Blu rayStats com Retrieved 2011 05 22 Flinn Ryan 2010 03 23 Pixar Gets Dolby to Invent Rain of Sound Technology to Match 3 D Movies Bloomberg Retrieved 2011 05 22 Dolby Marks 40 Years in Cinema with Major Digital Cinema Milestones Dolby Laboratories 2010 11 10 Archived from the original on 2011 07 10 Retrieved 2011 05 22 Giardina Carolyn 2011 03 28 Pirates of the Caribbean Kung Fu Panda 2 to Use Dolby 7 1 Surround Sound The Hollywood Reporter Archived from the original on 30 March 2011 Retrieved 2011 03 29 Retrieved from https en wikipedia org w index php title 7 1 surround sound amp oldid 1165027009, wikipedia, wiki, book, books, library,
