DTS stands for Digital Theater Systems. While Dolby Digitalis the standard 5.1 digital surround format on all DVD players, DTS is becominga possible alternative. DTS, first introduced in the movie JurassicPark,is now found on many film soundtracks. DTS soundtracks have been available onlaserdiscs for the past couple of years, but we're only starting to see DVDtitles with a DTS soundtrack. There are only about a dozen DVD movies with DTSnow, but you can expect this number to grow. And there are quite a few CDtitles that are DTS-encoded, from Mozart to Marvin Gaye. Buying a DVD playerthat's DTS-compatible shouldn't cost all that much more and could mean highersound quality down the road. 'DTS compatible' means that the DVD Player willpass a DTS 5.1 surround sound (audio) signal to a DTS decoder for properplayback of DVDs encoded with a DTS soundtrack.
2112 CD + 5.1 Audio DVD Deluxe Edition by Rush 2012. 4.8 out of 5 stars 2,116. Audio CD $20.31 $ 20. 31 $29.98 $29.98. FREE Shipping on orders over $25 shipped by Amazon. In stock on December 14, 2020. Other options New and used from $13.94. MP3 Music Listen with Music Unlimited. Jan 02, 2019 Most surround receivers have modes that can do great things with a stereo CD to make 5.1 out of it. Dolby Prologic II was a great leap in this regard and is often very successful. DTS has NEO modes that do this as well. Results will vary based on the original recording.
DTSAudio CDor5.1 Music Discis an audioCompact Discthat contains music surroundsoundconfigurations.The specification permits discrete channel configurations - 2.0 (L, R) to 6.1 (L, R, C, LFE, Ls, Rs,Cs), although 5.1 (L, R, C, LFE, Ls, Rs. Physically, a DTS Audio CD conforms tothe
Red Bookstandard;however a DTS bitstream, is actually encapsulated in each PCM audio track. Thisconfiguration permits any non-DTS enabled player to output multi-channel audiowhen connected to an external DTS-compliant processor (e.g. a typical AVreceiver) via a digital interface like S/PDIF or HDMI, provided that the playerdoes not modify the bitstream internally. Although the DTS audio track is read at the same fixedbitrate as 16-bit linear PCM (1,411 kbit/s) only 14 bits(1,234 kbit/s) are used for the encoded data stream; the remaining twobits are always zeros. This has the effect of attenuating the noise that wouldresult (by roughly 12 dB) should one attempt to play a DTS Music Disc witha non-DTS system, and thereby reducing the chance of speaker damage. Howeverthis is a non-issue for players with internal DTS decoders, such as someDVD-Audio and Blu-ray players; these devices will output a properly decodedaudio signal through their analogue ports.
Although all compliant DTS decoders support surroundconfigurations of up to 5.1 channels, a DTS ES decoder must be used to fullydecode discs with 6.0 or 6.1 channels of audio. DTS ES comes in twoflavors: DTS ES Matrix and DTS ES Discrete. Depending on the disc and decoderused the Cs (center surround) channel will either be derived from the Ls and Rsof a conventional 5.1 track via matrix decoding, or exist as a fully discretedigital extension to a 5.0 or 5.1 core. In either case, backward compatibilityis maintained with non-ES decoders.
SPDIF (Sony/Phillips DigitalInterconnect Format) - digital audio interface. SPDIF was first used only totransmit stereo 16-bit PCM data (CD player was the only source of digitalaudio). It is very straightforward: audio samples are transmitted at constantfrequency, one-by-one (and bit-by-bit) in 32-bit blocks where 8 bits are usedfor synchronization and some side info and 24 bits are used for sample. In mostcases, only 16-bit transmission is supported (CD carries only 16-bit sound) andlow 8 bits of a sample are always zeroed. This interface is very simple andcheap and so it became widespread.
Therefore, when multi-channel soundera came to home theaters, SPDIF was an ideal candidate for digital interfaceto transmit multi-channel sound. However, it is a problem: current interfaceimplementations work only with stereo sound, but now it is required to transmitup to 6 channels (or 8 channels at present). It was decided not to change theinterface but to transmit compressed multi-channel sound instead of PCM data(for digital interface it does not matter what to transmit). So receiver mustrecognize compressed data and decode it. For this purpose a new standard wasintroduced (IEC 61937) that describes how compressed data must be transmittedand how receivers can distinguish PCM and compressed data.
Dts 5.1 Audio
PCM data transmission mode and
Unless noted we well use SPDIFtransmission, SPDIF output mode and SPDIF stream terms only for encoded streamsafterwards.
Compressed data may be transmittedover SPDIF instead of PCM data. Therefore, we can prepare a CD disk and placecompressed AC3 or DTS data instead of usual PCM tracks. When we playback thisdisk with a CD player connected to a receiver we will get true multi-channelsound!
But this trick does not work with analog connection andportable CD players: we will get terribly loud noise instead of nice music.Because of this CD disks with AC3/DTS tracks are relatively rare.When a mediaplayer tries to playback a multi-channel disk it does not know that it containscompressed data. It's just because it is no simple method to distinguish usualand multi-channel disks. We have to read some data from the disk and have somemethod to know what kind of data we got. Hardware receivers have a specialdetection circuit, but software media players (most of it) have no. That's thepoint why media player cannot playback such discs right even when some AC3 orDTS decoder is installed.
Dts 5.1 Music Disc
DTS CDsare encoded in 5.1 surround sound using the DTS compression algorithm. As such,the fidelity is of lower quality than the sound quality offered by CDs,DVD-Audio discs, and SACDs. DTS CDs are not encoded in stereo. We can play DTSCDs in three ways:
- On a CD playerconnected to a 5.1-channel receiver or pre/pro with a DTS decoder via an optical or coaxial digital cable.
- On a DVD-Video player with the 'DTS Digital Out' logo on the frontpanel (meaning any player available today) to a 5.1-channel receiver or pre/prowith a DTS decoder via an optical or coaxial digital cable.
- On a DVD-Videoplayer with a built-in DTS decoder connected to a 5.1-channel receiver orpre/pro via the 5.1-channel outputs (i.e., six RCA cables).Dts 5.1 Download
SONY DVD COMBO Players:
| Optical discs |
|---|
|
- Compact disc (CD): CD-DA, CD-ROM, CD-R, CD-RW, 5.1 Music Disc, Super Audio CD (SACD), Photo CD, CD Video (CDV), Video CD (VCD), Super Video CD (SVCD), CD+G, CD-Text, CD-ROM XA, CD-i, MIL-CD, Mini CD
- DVD: DVD-R, DVD+R, DVD-R DL, DVD+R DL, DVD-R DS, DVD+R DS, DVD-RW, DVD+RW, DVD-RAM, DVD-D, DVD-A, HVD, EcoDisc, MiniDVD
- Blu-ray Disc (BD): BD-R & BD-RE, Blu-ray 3D, Mini Blu-ray Disc
- HD DVD: HD DVD-R, HD DVD-RW, HD DVD-RAM
- MiniDisc (MD), Hi-MD
- LaserDisc (LD), LD-ROM, LV-ROM
- Five dimensional disc (5D DVD)
- Archival Disc (AD)
|
- SFFATAPI/MMC
- Mount Rainier (packet writing)
- Mount Fuji (layer jump recording)
- File systems
- ISO 9660
- Universal Disk Format (UDF)
|
The DTS Music Disc (official name),[1]DTS Audio CD or 5.1 Music Disc is an audio Compact Disc that contains music in one of various possible surround sound configurations. The specification permits discrete channel configurations from 2.0 (L, R) to 6.1 (L, R, C, LFE, Ls, Rs, Cs), although 5.1 (L, R, C, LFE, Ls, Rs) is the most common. Physically, a DTS Music Disc conforms to the Red Book standard; however a DTS bitstream, based on the Coherent Acoustics compression algorithm, is actually encapsulated in each PCM audio track. This configuration permits any non-DTS enabled player to output multi-channel audio when connected to an external DTS-compliant processor (e.g. a typical AV receiver) via a digital interface like S/PDIF or HDMI, provided that the player does not modify the bitstream internally.
Although the DTS audio track is read at the same fixed bitrate as 16-bit linear PCM (1,411 kbit/s) only 14 bits (1,234 kbit/s) are used for the encoded data stream; the remaining two bits are always zeros. This has the effect of attenuating the noise that would result (by roughly 12 dB) should one attempt to play a DTS Music Disc with a non-DTS system,[citation needed] and thereby reducing the chance of speaker damage. However this is a non-issue for players with internal DTS decoders, such as some DVD-Audio and Blu-ray players; these devices will output a properly decoded audio signal through their analogue ports.
Although all compliant DTS decoders support surround configurations of up to 5.1 channels, a DTS ES decoder must be used to fully decode discs with 6.0 or 6.1 channels of audio. DTS ES comes in two flavors: DTS ES Matrix and DTS ES Discrete. Depending on the disc and decoder used the Cs (center surround) channel will either be derived from the Ls and Rs of a conventional 5.1 track via matrix decoding, or exist as a fully discrete digital extension to a 5.0 or 5.1 core. In either case, backward compatibility is maintained with non-ES decoders.
References[edit]
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