DTS (Digital Theater Systems) Digital Surround is an optional multi-channel digital audio format, using lossy compression from PCM at 48 kHz at up to 24 bits. The data rate is from 64 kbps to 1536 kbps, with typical rates of 754.5 and 1509.25 for 5.1 channels and 377 or 754 for 2 channels.
The DTS Coherent Acoustics format supports up to 4096 kbps variable data rate for lossless compression, but this isn't supported by DVD. DVD also does not allow DTS sampling rates other than 48 kHz.). Channel combinations are (front/surround): 1/0, 2/0, 3/0, 2/1, 2/2, 3/2.
The LFE channel is optional with all combinations. DTS ES support 6.1 channels in two ways:
1) a Dolby Surround EX compatible matrixed rear center channel
2) a discrete 7th channel. |
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DTS also has a 7.1-channel mode (8 discrete channels), but no DVDs have used it yet. The 7-channel and 8-channel modes require a new decoder.
The DVD standard includes an audio stream format reserved for DTS, but many older players ignore it.
DTS encoding is popular for music formats on a DVD the DVD specification requires the a PCM or Dolby digital stream also be present on the disc as not all DVD players support the format as analogue out, and may require a DTS decoder.
For any DTS audio encoding questions please contact client services for more information. |
