Thx External Sound Card

Posted on  by admin

This is the second--such card I am installing.

My Core 2 Duo PC with WIN 7 is using this as a upgrade. Now my latest build--a i5-3550 and WIN 7 requires something more than integrated. I first install the digital sound card--then use Windows[tm]Update Service--to retrieve the latest sound driver.I then use the enclosed CD-for Creative MediaSource applications--Plus.the Auto Updater.

  • (originally Digital Theater Systems) is an American company that makes multichannel audio technologies for film and video.

Based in Calabasas, California, the company introduced its DTS technology in 1993 as a competitor to Dolby Laboratories, incorporating DTS in the film Jurassic Park (1993).[3][4][5] The DTS product is used in surround sound formats for both commercial/theatrical and consumer-grade applications.

  • It was known as The Digital Experience until 1995.
  • DTS licenses its technologies to consumer electronics manufacturers.
  • The DTS brand was acquired by Tessera Holding Corporation in December 2016, then Tessera was renamed to Xperi Corporation.

DTS was founded by Terry Beard, an audio engineer and Caltech graduate.

  • Beard, speaking to a friend of a friend, was able to get in touch with Steven Spielberg to audition a remastering of Spielberg's film Close Encounters of the Third Kind mixed in DTS.
  • Spielberg then selected DTS sound for his next film, Jurassic Park (1993) and with the backing of Universal and its then-parent Matsushita Electric, over 1,000 theatres in the United States adopted the DTS system.[6].
  • A photo of a theatrical DTS CD-ROM disc used for the original 1993 release of Jurassic Park.

Work on the new audio 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 effects) 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 directorSteven 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.
  • Universal Pictures would exclusively support DTS until late 1997. 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.
  • A photo of a 35 mm film print featuring all four audio formats (or "quad track")- from left to right: SDDS (blue area to the left of the sprocket holes), Dolby Digital (grey area between the sprocket holes labelled with the Dolby "Double-D" logo in the middle), analog optical sound (the two white lines to the right of the sprocket holes), and the DTS time code (the dashed line to the far right.).
  • In 2012, DTS acquired the business of SRS Labs (Sound Retrieval System), a psychoacoustic 3D audio processing technology, including over 1,000 audio patents and trademarks.
  • In 2014, DTS acquired Manzanita Systems,[7] a provider of MPEG software for digital television, VOD, and digital ad insertion.[8].
  • Phorus, a subsidiary of DTS, Inc., is a Los Angeles-based technology group dedicated to wireless audio for connected devices.[9].

On September 2, 2015, iBiquity announced that it was being purchased by DTS for US$172 million, uniting iBiquity's HD Radio digital radio broadcast technology with DTS' digital audio surround sound systems.[10].

  • In theatrical use, a proprietary 24-bit time code is optically imaged onto the film.
  • An LED reader scans the timecode data from the film and sends it to the DTS processor, using the time code to synchronize the projected image with the DTS soundtrack audio.

The multi-channel DTS audio is recorded in compressed form on standard CD-ROM media at a bitrate of 882 kbit/s. The audio compression used in the theatrical DTS system (which is very different and completely unrelated to the home Coherent Acoustics-based DTS Digital Surround format) is the APT-X100 system.

Unlike the home version of DTS or any version of Dolby Digital, the APT-X100 system is fixed at a 4:1 compression ratio.

Data reduction is accomplished via sub-band coding with linear prediction and adaptive quantization. The theatrical DTS processor acts as a transport mechanism, as it holds and reads the audio discs.

When the DTS format was launched, it used one or two discs with later units holding three discs, thus allowing a single DTS processor to handle two-disc film soundtracks along with a third disc for theatrical trailers.

The DTS time code on the 35mm print identifies the film title which is matched to the individual DTS CD-ROMs, guaranteeing that the film cannot be played with the wrong disc.

  1. Each DTS CD-ROM contains a DOS program that the processor uses to play back the soundtrack, allowing system improvements or bug fixes to be added easily.
  2. Unlike Dolby Digital and SDDS, or the home version of DTS, the theatrical DTS system only carries 5 discrete channels on the CD-ROMs.

The .1 LFE subwoofer track is mixed into the discrete surround channels on the disc and recovered via low-pass filters in the theater.

Most DTS consumer codec techniques are documented in ETSI.

  1. DTS Digital Surround,DTS-ES,DTS 96/24,DTS-HD are recorded in ETSI TS 102 114,DTS:X is recorded in ETSI TS 103 491.
  2. A DTS Sound compatible Toshiba Laptop. On the consumer level, DTS is the oft-used shorthand for the DTS Coherent Acoustics (DCA) codec, transportable through S/PDIF and part of the LaserDisc, DVD, and Blu-ray specifications.
  3. This system is the consumer version of the DTS standard, using a similar codec without needing separate DTS CD-ROM media.
  4. Like standard CD players, DVD and Blu-ray Disc players cannot decode audio from DTS audio CDs.
  5. DTS is related to the aptXaudio coding format, and it is based on the adaptive differential pulse-code modulation (ADPCM) audio data compression algorithm.[11][12] In contrast, Dolby Digital (AC-3) is based on the modified discrete cosine transform (MDCT) compression algorithm.[13][14].

Both music and movie DVDs allow delivery of DTS audio signal, but DTS was not part of the original DVD specification (it was added later in 1997[15]), so early DVD players do not recognize DTS audio tracks at all.