7.1 surround sound

History

Home entertainment

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

While some movies have been remixed to 7.1 audio tracks on Blu-ray Discs for home cinema, the first discrete theatrical 7.1 soundtrack was Toy Story 3 in 2010, followed by Step Up 3D. Disney announced that they will use 7.1 surround for their future 3D releases. 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. 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. 7-1-surround-sound

Music

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.

References

References

1. "5.1 vs 7.1 Channel Home Theater Receivers - Which is Right For You?".
2. "Help Guide {{!}} Installing 7.1-channel speaker system using surround back speakers".
3. "Dolby Pro Logic IIz". [[Dolby Laboratories]].
4. "Help Guide {{!}} Names and functions of speakers".
5. "7.1 Blu-ray". Blu-rayStats.com.
6. Flinn, Ryan. (2010-03-23). "Pixar Gets Dolby to Invent 'Rain of Sound' Technology to Match 3-D Movies". [[Bloomberg L.P..
7. (2010-11-10). "Dolby Marks 40 Years in Cinema with Major Digital Cinema Milestones". [[Dolby Laboratories]].
8. Giardina, Carolyn. (2011-03-28). "'Pirates of the Caribbean,' 'Kung Fu Panda 2' to Use Dolby 7.1 Surround Sound.". [[The Hollywood Reporter]].