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DTS (also known as Digital Theater Systems), owned by DTS, Inc. (NASDAQ: DTSI), is a multi-channel digital surround sound format used for both commercial/theatrical and consumer grade applications. It is used for in-movie sound both on film and on DVD, and during the last few years of the format's existence, several Laserdisc releases had DTS soundtracks. Image File history File linksMetadata No higher resolution available. ...
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Sound is a disturbance of mechanical energy that propagates through matter as a wave. ...
Audio compression is a form of data compression designed to reduce the size of audio files. ...
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A website (alternatively, Web site or web site) is a collection of Web pages, images, videos and other digital assets that is hosted on one or several Web server(s), usually accessible via the Internet, cell phone or a LAN. A Web page is a document, typically written in HTML...
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Multichannel audio is the name for a variety of techniques for expanding and enriching the sound of audio playback by recording additional sound channels that can be reproduced on additional speakers. ...
Not to be confused with disk laser, a type of solid-state laser in a flat configuration. ...
History
One of the company'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. Work on the format started in 1991, four years after Dolby Labs 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 effect) channel, for the subwoofer. The film director, on the right, gives last minute direction to the cast and crew, whilst filming a costume drama on location in London. ...
Steven Allan Spielberg (born December 18, 1946)[1] is an American film director and producer. ...
Dolby Laboratories, Incorporated (Dolby Labs) is a company specializing in audio compression and reproduction. ...
A codec is a device or program capable of performing encoding and decoding on a digital data stream or signal. ...
Dolby Digital is the marketing name for a series of lossy audio compression technologies by Dolby Laboratories. ...
Low-Frequency Effects (LFE) is commonly used in describing an audio track contained within a motion picture sound mix. ...
a 12 subwoofer driver A subwoofer refers to either a driver, or a complete loudspeaker dedicated to the reproduction of bass audio frequencies, typically from 150 Hz down to 20 Hz. ...
Note however that 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). 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. 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 of 1995. Dolby Digital is the marketing name for a series of lossy audio compression technologies by Dolby Laboratories. ...
SDDS stands for Sony Dynamic Digital Sound, which is a cinema sound system developed by Sony. ...
Size comparison: A 12 cm Sony DVD+RW and a 19 cm Dixon Ticonderoga pencil. ...
Jurassic Park is a 1993 science fiction film directed by Steven Spielberg, based on the novel of the same name by Michael Crichton. ...
Batman Returns is a 1992 superhero thriller film based on the Batman character created by Bob Kane and Bill Finger. ...
Clear and Present Danger is a 1994 film directed by Phillip Noyce, based on the book of the same name by Tom Clancy. ...
In theatrical use, information in the form of a modified time code is optically imaged onto the film. An optical LED reader reads the timecode data off the film and sends it to the DTS processor which uses this timecode to synchronize the projected image with the soundtrack audio. The actual audio is recorded in compressed form on standard CD-ROM media at a bitrate of 1,103 kbit/s. The processor also acts as a transport mechanism, as it holds and reads the audio discs. Newer units can generally hold three discs, allowing a single processor/transport to handle two-disc film soundtracks along with a third disc containing sound for theatrical trailers. In addition, specific elements of the imprinted timecode allow identifying data to be embedded within the code, ensuring that a certain film's soundtrack will only run with that film. DTS provided the Digital Audio for IMAX until 2001, when Dolby took over.[citation needed] Timecode is also the title of a 2000 film directed by Mike Figgis which was shot in one continuous take. ...
The CD-ROM (an abbreviation for Compact Disc Read-Only Memory (ROM)) is a non-volatile optical data storage medium using the same physical format as audio compact discs, readable by a computer with a CD-ROM drive. ...
In film formats, the soundtrack is the physical area of the film which records the synchronized sound. ...
IMAX theatre at the Melbourne Museum complex, Australia BFI London IMAX by night IMAX dome in Guayaquil, Ecuador IMAX Theater in SM Mall of Asia, Philippines IMAX (short for Image Maximum) is a film format created by Canadas IMAX Corporation that has the capacity to display images of far...
Dolby Laboratories, Incorporated (Dolby Labs) is a company specializing in audio compression and reproduction. ...
DTS and Dolby Digital (AC-3), DTS's chief competitor in the cinema and home theater market, are often compared due to their similarity in product goals. In theatrical installations, AC-3 audio is placed between sprocket holes, leaving the audio content susceptible to physical damage due to film wear and mishandling. DTS audio is stored on a separate set of CD-ROM media, whose greater storage capacity affords the potential to deliver better audio fidelity. However, the separation of print film and audiotrack is both a blessing and a curse. AC-3 (and SDDS) reside entirely on the 35 mm film itself, simplifying distribution by eliminating an extra (optional) deliverable. But DTS's CD-ROM media is not subject to the usual wear and damage suffered by the film print during the normal course of the movie's theatrical screening. Disregarding the separate CD-ROM assembly as a potential point of failure, the DTS audiopath comparatively impervious to film degradation, excepting that the film-printed timecode is completely destroyed.
In the consumer (home theater) market, AC-3 and DTS are close in terms of audio performance. When the DTS audio track is encoded at its highest legal bitrate (1,500 kbit/s), technical experts rank DTS as perceptually transparent for most audio program material (i.e., indistinguishable to the uncoded source in a double blind test.) Dolby claims its competing AC-3 codec achieves similar transparency at its highest coded bitrate (640 kbit/s). However, in program material available to home consumers (DVD, broadcast and subscription Digital TV), neither AC-3 nor DTS run at its highest allowed bitrate. DVD and broadcast (ATSC) HDTV cap AC-3 bitrate at 448 kbit/s. But even at 448 kbit/s, consumer audio gear already enjoy better audio performance than theatrical (35 mm movie) installations, which are limited to even lower bitrates. When DTS-audio was introduced to the DVD specification, studios authored DVD-movies at DTS's full bitrate (1,536 kbit/s). Later movie titles were almost always encoded at a reduced bitrate of 768 kbit/s, ostensibly to increase the number of audio-tracks on the movie disc. At this reduced rate (768 kbit/s), DTS no longer retains audio transparency. The Double blind method is an important part of the scientific method, used to prevent research outcomes from being influenced by the placebo effect or observer bias. ...
AC-3 and DTS are sometimes judged by their encoded bitrates. DTS proponents claim that the extra bits give higher fidelity and more dynamic range, providing a richer and more lifelike sound. But no conclusion can be drawn from their respective bitrates, as each codec relies on different coding tools and syntax to compress audio. When the DTS and AC-3 audiotracks on the same DVD are compared, some movies exhibit noticeable differences. A DTS track is often louder with less hiss, even at the same relative playback volume.[1]
DTS as a codec DTS is an enhanced copy[2] of a French patent called LC Concept, first used in 1990[3] for the movie Cyrano de Bergerac which received the best sound award at the César Awards in 1991.[4] Cyrano de Bergerac is a 1990 French language film based on the 1897 play of the same name by Edmond Rostand. ...
The César Award is the national film award of France first given out in 1975. ...
On the consumer level, DTS is the oft-used shorthand for the DTS Coherent Acoustics codec, transportable through S/PDIF and used on DVDs, CDDAs, LDs and in wave files. This system is the consumer version of the DTS standard, using a similar codec without needing separate DTS CD-ROM media. DTS Coherent Acoustics is the full name for the audio format standard usually known as just DTS. It is covered in U.S. Patent 5,956,674. ...
TOSLINK connector (JIS F05) 75 ohm coaxial cable with BNC-to-RCA adapter. ...
Size comparison: A 12 cm Sony DVD+RW and a 19 cm Dixon Ticonderoga pencil. ...
Rainbow Books: Red Book (CD Digital Audio), Yellow Book (CD-ROM and CD-ROM XA), Orange Book (CD_R and CD-RW), White Book (Video CD), Blue Book (Enhanced Music CD, CD+G and CD-Plus), Beige Book (Photo CD), Green Book (CD-i). ...
LD can mean: Liberal democracy The laserdisc video format, which looks like a huge compact disc Learning-disabled Legislative district The Lilian day, a version of the Julian day, Lincoln-Douglas Debate, a form of debate. ...
A codec is a device or program capable of performing encoding and decoding on a digital data stream or signal. ...
There are significant technical differences between commercial/theatrical and home variants: the former being a traditional ADPCM compression system and the latter a sophisticated hybrid perceptual and signal-redundancy compressor based on ADPCM called APTX-100. Pulse-code modulation (PCM) is a modulation technique. ...
DTS playback Both music and movie DVDs allow delivery of DTS audio tracks. But DTS was not part of the original DVD specification (1997), so early DVD players did not recognize DTS audio tracks at all. The DVD specification was revised to allow optional inclusion of DTS audio tracks. The DVD title must carry one or more primary audio tracks in AC-3 or LPCM format (in Europe, MPEG-1 is also an allowed primary track format). The DTS audio track, if present, can be selected by the user. Modern DVD players generally rely on an external home theater receiver to decode DTS audio. DVD players with integrated DTS 5.1 decoders exist, but are not particularly common. Nearly all standalone receivers and many integrated ("home theater in a box") DVD player/receivers manufactured today can decode DTS.
For PC playback, many software players support the decoding of DTS. The VideoLAN project has created a decoding module for DTS called libdca (formerly libdts), which is the first open source implementation of DTS.[5] VideoLAN is a software development project comprising two multi-platform computer programs—VLC media player and VideoLAN Server (VLS)—and several audio/video decoding and decryption libraries. ...
libdca is a GPLd software library that can decode the DTS Coherent Acoustics audio format, developed by Gildas Bazin. ...
The Sony Playstation 3 and Xbox 360 are capable of DTS decoding and output via Toslink or HDMI (Xbox 360 Elite and newer models only) as LPCM. Neither console has the ability to decode DTS-HD High Resolution or Master Audio at this time. The PlayStation 3 can decode the "core" of DTS-HD internally at a bitrate of 1.5 Mbit/s while the Xbox 360 can output the bitstream itself via Toslink.[citation needed] The PlayStation 3 , trademarked PLAYSTATION®3,[3] commonly abbreviated PS3) is the third home video game console produced by Sony Computer Entertainment; successor to the PlayStation 2. ...
It has been suggested that Xbox 360 Elite be merged into this article or section. ...
TOSLINK is a standardized optical fiber connection system. ...
The High-Definition Multi-media Interface (HDMI) is an industry-supported, uncompressed, all-digital audio/video interface. ...
DTS variants In addition to the standard 5.1 channel DTS Surround codec, the company has several other technologies in its product range designed to compete with similar systems from Dolby Labs. The primary new technologies are: Dolby Laboratories, Incorporated (Dolby Labs) is a company specializing in audio compression and reproduction. ...
- DTS-ES (DTS Extended Surround): includes two variants, DTS-ES Matrix and DTS-ES Discrete 6.1, depending on how the sound was originally mastered and stored.[6] DTS-ES Discrete provides 6.1 discrete channels, with a discretely recorded (non-matrixed) center-surround channel; in home theater systems with a 7.1 configuration, the two rear-center speakers play in mono. DTS-ES Matrix provides 5.1 discrete channels with a matrixed center-surround audio channel. DTS-ES commonly works on a matrix system, whereby processors that are compatible with the ES codec look for and recognize "flags" built into the audio coding and "un-fold" the rear-center sound from data that would otherwise be sent to rear surround speakers. This is notated as DTS-ES 5.1. Less frequently, DTS-ES data can be encoded with a discrete sixth audio channel (the rear-center), meaning that the audio data for the sixth channel is stored separately from the other information, and is not embedded or matrixed among other channels. This is notated as DTS-ES 6.1, as the center rear is completely discrete from the other channels. ES capable processors can recognize the discrete sixth channel, and play it back if connected to the necessary speaker(s). In contrast, Dolby's competing EX codec, which also boasts a center rear channel, can only handle matrixed data and does not support a discrete sixth channel. DTS-ES is backward compatible with standard DTS setups, so non-ES equipment which does not recognize the flags or with ES enabled equipment that lack the extra speaker connections, sound plays back in 5.1 as if it were standard DTS. Only a few DVD titles have been released with DTS-ES Discrete.
- DTS NEO:6: Neo:6, like Dolby's Pro Logic IIx system, can take stereo content and convert the sound into 5.1 or 6.1 channel format.
- DTS 96/24: Allows the delivery of 5.1 channels of 24-bit, 96 kHz audio and high quality video on the DVD-Video format. Prior to the invention of DTS 96/24, it was only possible to deliver two channels of 24-bit, 96 kHz audio on DVD-Video. DTS 96/24 can also be placed in the video zone on DVD-Audio discs, making these discs playable on all existing DVD players.
- DTS-HD Master Audio: Previously known as DTS++ and DTS-HD, DTS-HD Master Audio supports a virtually unlimited number of surround sound channels, can downmix to 5.1 and two-channel, and can deliver audio quality at bit rates extending from DTS Digital Surround up to lossless (24-bit, 96 kHz). DTS-HD Master Audio is selected as an optional surround sound format for Blu-ray and HD DVD. Currently the Japanese version Pioneer BDP-LX80 supports bitstream digital output of the format along with the Samsung BD-P1400 (through a firmware update). All Blu-ray and HD DVD players can decode the DTS "core" resolution soundtrack at 1.5 Mbit/s however. DTS-HD Master Audio and Dolby TrueHD are the only technologies that deliver compressed lossless surround sound for these new disc formats, ensuring the highest quality audio performance available in the new standards. (N.B.: DTS Coherent Acoustics coding system has been selected as mandatory audio technology for both the Blu-ray Disc (BD) and High Definition Digital Versatile Disc (HD DVD).[7])
- DTS-HD High Resolution Audio: Like DTS-HD Master Audio, DTS-HD High Resolution audio is an extension to the original DTS audio format. It delivers up to 7.1 channels of sound at 96 kHz sampling frequency and 24 bit depth resolution. DTS-HD High Resolution Audio is selected as an optional surround sound format for Blu-ray Disc and HD DVD with constant bit rates up to respectively 6.0 Mbit/s and 3.0 Mbit/s. It is supposed to be an alternative for DTS-HD Master Audio where disc space may not allow it.
- DTS Connect: This is a function pack available on the computer platform only. It is found on soundcards with CMedia CMI8788/CMI8770 Soundcontroller.
- DTS Interactive: This is a realtime DTS stream encoder. It is a part of DTS Connect, or can found on stand alone devices (e.g., Surround Encoder, HD DVD / Blu-ray Player). Nearly a dozen titles on the PlayStation 2 feature the "DTS Interactive" realtime stream encoder, such as Grand Theft Auto: Vice City, and Terminator 3: Rise of the Machines.
- DTS Virtual: A relatively new development. Intended for use in conjunction with a Dolby Headphone processor. It allows a virtual (as the name suggests) 5.1 surround sound to be heard through a standard pair of headphones. It provides a better spatial awareness than Dolby Headphone on its own.
In sound recording, a matrix can refer to a disc in the early stages of processing a record for mass production; see mastering and pressing process discussion at gramophone record. ...
Label for 1. ...
Description Dolby Digital is the trademark for Dolby Laboratories AC-3 audio coding system. ...
DVD-Audio also known as DVDA is a digital format for delivering very high-fidelity audio content on a DVD. The first discs entered the marketplace in 2000. ...
Image File history File links This is a lossless scalable vector image. ...
Image File history File links This is a lossless scalable vector image. ...
Downmixing is a term used for manipulating audio. ...
A blank rewritable Blu-ray disc (a BD-RE) A Blu-ray Disc (also called BD) is a high-density optical disc format for the storage of digital information, including high-definition video. ...
HD-DVD disc HD DVD (for High Density Digital Versatile Disc) is a digital optical media format which is being developed as one standard for high-definition DVD. HD DVD is similar to the competing Blu-ray Disc, which also uses the same CD sized (120 mm diameter) optical data...
Dolby TrueHD logo Dolby TrueHD, from Dolby Laboratories, is an advanced lossless multi-channel audio codec, intended primarily for high-end home-entertainment equipment, such as Blu-ray Disc and HD DVD. In this application, Dolby TrueHD competes with DTS-HD Master Audio, another lossless codec from Digital Theater System. ...
“PS2†redirects here. ...
Grand Theft Auto: Vice City (released in October 2002) is the fourth video game in the hit Grand Theft Auto series. ...
See also Description Dolby Digital is the trademark for Dolby Laboratories AC-3 audio coding system. ...
A codec is a device or program capable of performing encoding and decoding on a digital data stream or signal. ...
Dolby Laboratories, Inc. ...
DTS Coherent Acoustics is the full name for the audio format standard usually known as just DTS. It is covered in U.S. Patent 5,956,674. ...
A 3 metres/119 inch projection screen with a high-definition television image. ...
// Overview AV Receivers are one of the many consumer electronics components typically found within a home theatre system. ...
THX is the trade name of a high-fidelity sound reproduction system for movie theaters, screening rooms, home theaters, computer speakers, gaming consoles, and car audio systems. ...
References - ^ First DTS Studio, DTS Surround FAQ
- ^ (French) Les dinosaures muselés par deux français, L'Expansion (October 21, 1993)
- ^ Cyrano de Bergerac (1990) at the Internet Movie Database
- ^ César Awards, France: 1991 IMDB
- ^ Videolan features page
- ^ DTS Extended Surround at timefordvd.com
- ^ DTS technology mandatory for next generation discs – dtsonline.com
The Internet Movie Database (IMDb) is an online database of information about movies, actors, television shows, production crew personnel, and video games. ...
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