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DTS is a series of multichannel audio technologies owned by DTS, Inc. (formerly known as Digital Theater Systems, Inc.), an American company specializing in digital surround sound formats used for both commercial/theatrical and consumer grade applications. It was known as The Digital Experience until 1995. In 2008, the cinema division was divested to form DTS Digital Cinema. In 2009 DTS Digital Cinema was purchased by Beaufort International Group Plc. and became known as Datasat Digital Entertainment. Beginning in 2011, the DTS cinema branding has been dropped, in favor of the Datasat Digital Sound branding. The original DTS Inc. company continues to exist developing and licensing DTS products in the home consumer market. Datasat Digital Entertainment has also announced a range of very high-end consumer audio processing products. In 2012 DTS acquired the business of SRS Labs, including over 1,000 audio patents and trademarks. ==History== Work on the format started in 1991, four years after Dolby Laboratories started work on its new codec, Dolby Digital. The basic and most common version of the format is a 5.1-channel system, similar to a Dolby Digital setup, which encodes the audio as five primary (full-range) channels plus a special LFE (low-frequency emitter) channel for the subwoofer. Encoders and decoders support numerous channel combinations, and stereo, four-channel, and four-channel+LFE soundtracks have been released commercially on DVD, CD, and Laserdisc. Other, newer DTS variants are also currently available, including versions that support up to seven primary audio channels plus one LFE channel (DTS-ES). These variants are generally based on DTS's core-and-extension philosophy, in which a core DTS data stream is augmented with an extension stream which includes the additional data necessary for the new variant in use. The core stream can be decoded by any DTS decoder, even if it does not understand the new variant. A decoder which does understand the new variant decodes the core stream, and then modifies it according to the instructions contained in the extension stream. This method allows backward compatibility. DTS's main competitors in multichannel theatrical audio are Dolby Digital and SDDS, although only Dolby Digital and DTS are used on DVDs and implemented in home theater hardware. One of the DTS Inc.'s initial investors was film director Steven Spielberg, who felt that theatrical sound formats up until the company's founding were no longer state of the art, and as a result were no longer optimal for use on projects where quality sound reproduction was of the utmost importance. Spielberg debuted the format with his 1993 production of ''Jurassic Park'', which came slightly less than a full year after the official theatrical debut of Dolby Digital (''Batman Returns''). In addition, ''Jurassic Park'' also became the first home video release to contain DTS sound when it was released on LaserDisc in January 1997, two years after the first Dolby Digital home video release (''Clear and Present Danger'' on Laserdisc), which debuted in January 1995. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「DTS (sound system)」の詳細全文を読む スポンサード リンク
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