Difference between revisions of "DTS"
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(The module that decodes dts is es) |
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DTS is a private company that develops audio formats, similar to Dolby. The term "DTS" generally refers to DTS's digital surround audio technology that is used widely on DVD-Video discs, just like Dolby's Dolby Digital/AC3. | DTS is a private company that develops audio formats, similar to Dolby. The term "DTS" generally refers to DTS's digital surround audio technology that is used widely on DVD-Video discs, just like Dolby's Dolby Digital/AC3. | ||
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=== DTS Extensions === | === DTS Extensions === | ||
* Core: core components with core sub stream | * Core: core components with core sub stream | ||
| − | * XCh: DTS-ES backward compatible 6.1 extension | + | * XCh: DTS-ES backward compatible 6.1 extension |
| − | * X96: sampling frequency extension up to 96 kHz | + | :Adds an extra centre surround channel, with 6.1->5.1 downmix embedded in the core stream using default down-mix coefficients. |
| − | * XXCH: channel extension beyond 5.1 | + | * X96: sampling frequency extension up to 96 kHz |
| − | + | :48kHz downsampled stream is embedded in the core. | |
| − | * | + | * XXCH: channel extension beyond 5.1 |
| − | * | + | :Allows up to 32 additional channels, with the 5.1 downmix embedded in the core stream. |
| − | + | * XBR: Extended Bit Rate extension (>1.5Mbps) | |
| − | * | + | :Guaranteed to be compatible with the DTS core |
| − | + | * XLL: Lossless extension | |
| + | :core and residual signal are splitted. | ||
| + | * LBR: Low Bit Rate component | ||
=== DTS Products === | === DTS Products === | ||
* DTS-Core: 5.1 Primary audio stream core component decoder | * DTS-Core: 5.1 Primary audio stream core component decoder | ||
| + | ** Samples everywhere :) | ||
* DTS-ES: Core + XCh, XXCh support | * DTS-ES: Core + XCh, XXCh support | ||
| − | * DTS 96/24: Core + X96 Support | + | ** http://streams.videolan.org/samples/A-codecs/DTS/dts/ES%206.1%20-%205.1%2016bit.dts |
| − | * DTS | + | ** http://streams.videolan.org/samples/A-codecs/DTS/dts/ES%206.1%2024bit.dts |
| − | * DTS-HD High Resolution: Core + | + | * DTS 96/24: Core + X96 Support (+ XBR?) |
| − | * DTS-HD Master Audio: | + | ** http://streams.videolan.org/samples/A-codecs/DTS/dts/96-24.dts |
| + | ** http://streams.videolan.org/samples/A-codecs/DTS/dts/chronos%20-%2096-24.dts | ||
| + | * DTS-HD High Resolution Audio: Core + XCh + XBR support | ||
| + | ** http://streams.videolan.org/misc/DTS-HD/SpeakerID-DTS-HD-HRA.mkv | ||
| + | ** http://streams.videolan.org/samples/A-codecs/DTS/dts/Hi-Res%206.1%2024bit.dts | ||
| + | * DTS-HD Master Audio: Core + XLL support | ||
| + | ** http://streams.videolan.org/samples//A-codecs/DTS/dts/Master%20Audio%207.1%2024bit.dts | ||
| + | ** http://streams.videolan.org/samples//A-codecs/DTS/dts/Master%20Audio%205.1%2024bit.dts | ||
| + | * DTS Express: LBR support | ||
| + | |||
* DTS-Broadcast, DTS Neo, DTS- Surround Sensation: unknown | * DTS-Broadcast, DTS Neo, DTS- Surround Sensation: unknown | ||
| + | |||
| + | == Samples == | ||
| + | http://streams.videolan.org/samples/A-codecs/DTS/dts/ | ||
== Source code == | == Source code == | ||
Latest revision as of 08:43, 28 May 2019
dts
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VLC can decode this container. The module name to use at the command line is es. |
DTS is a private company that develops audio formats, similar to Dolby. The term "DTS" generally refers to DTS's digital surround audio technology that is used widely on DVD-Video discs, just like Dolby's Dolby Digital/AC3.
DTS differs from Dolby Digital in that it uses less compression and has a lower bass extension, which allows it to produce a better sound quality. DTS Stereo sounds almost identical to Dolby Surround.
Codec info
DTS Coherent Acoustics is a perceptual audio codec. The main technique used is a QMF filter together with Huffman, ADPCM and vector quantization.
The DTS codec consists of a core and various extensions, that improve quality.
DTS Extensions
- Core: core components with core sub stream
- XCh: DTS-ES backward compatible 6.1 extension
- Adds an extra centre surround channel, with 6.1->5.1 downmix embedded in the core stream using default down-mix coefficients.
- X96: sampling frequency extension up to 96 kHz
- 48kHz downsampled stream is embedded in the core.
- XXCH: channel extension beyond 5.1
- Allows up to 32 additional channels, with the 5.1 downmix embedded in the core stream.
- XBR: Extended Bit Rate extension (>1.5Mbps)
- Guaranteed to be compatible with the DTS core
- XLL: Lossless extension
- core and residual signal are splitted.
- LBR: Low Bit Rate component
DTS Products
- DTS-Core: 5.1 Primary audio stream core component decoder
- Samples everywhere :)
- DTS-ES: Core + XCh, XXCh support
- DTS 96/24: Core + X96 Support (+ XBR?)
- DTS-HD High Resolution Audio: Core + XCh + XBR support
- DTS-HD Master Audio: Core + XLL support
- DTS Express: LBR support
- DTS-Broadcast, DTS Neo, DTS- Surround Sensation: unknown
Samples
http://streams.videolan.org/samples/A-codecs/DTS/dts/
Source code
- modules/codec/dts.c (decoder packetizer)
