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Old 11th January 2014, 18:58   #1  |  Link
SeeMoreDigital
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96/24 DTS stream differences?

I have a 45 second sample of a 96/24 DTS elementary stream extracted from a DVD-A disc. And another 45 second sample of a 96/24 DTS elementary stream extracted from a BRD-A disc.

Is there any particular reason why the 96/24 DTS elementary stream extracted from a BRD-A is rejected by Muxman?

Are there any methods/tools that can standardise non-compliant DTS streams for use on DVD. And why would they be different anyway?

Samples here...


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Last edited by SeeMoreDigital; 9th March 2014 at 19:39. Reason: Topic title amended
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Old 12th January 2014, 00:09   #2  |  Link
tebasuna51
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Both are valid DTS files:

Code:
File : DTS from BRD-A disc (45 secs).dts               DTS from DVD-A disc (45 secs).dts
Size : 8488628 bytes                                   Size ........: 8492847 bytes
------------------------------------ First Frame Info  -------------- First Frame Info
CRC present .................: 0                       0 (Not)
Number of PCM Sample Blocks .: 15                      15 ( 512 samples/frame)
Primary Frame Byte Size .....: 2011 (2012 bytes/frame) 2012 ( 2013 bytes/frame)
Audio Channel Arrangement ...: 9                       9 (5 C + L + R + SL + SR)
Core Audio Samp. Frequency ..: 13                      13 (48 kHz)
Transmission Bit Rate .......: 24                      24 (1536 Kb/s)
Embedded Down Mix Enabled ...: 0                       0 (Not)
Embedded Dynamic Range Flag .: 0                       0 (Not)
Embedded Time Stamp Flag ....: 0                       0 (Not)
Auxiliary Data Flag .........: 0                       0 (Not)
Mastered in HDCD format .....: 0                       0 (Not)
Extension Audio Descr. Flag .: 2                       2 (Frequency Extension X96k)
Extended Coding Flag ........: 1                       1 (Yes)
Audio Sync Word Insert. Flag : 1                       1 (Sub-sub-frame)
Low Frequency Effects Flag ..: 2                       2 (Present, interpolation factor 64)
Predictor History Flag Switch: 1                       1 (Yes)
Multirate Interpolator Switch: 0                       0 (Non-perfect Reconstruction)
Encoder Software Revision ...: 7                       7 (Current)
Copy History ................: 1                       1 (Definition deliberately omitted)
Source PCM Resolution .......: 6                       6 (24 bits)
Front Sum/Difference Flag ...: 0                       0 (Not)
Surrounds Sum/Difference Flag: 0                       0 (Not)
Dialog Normalization Param. .: - 0 dB                  - 0 dB
--------------------------------------- Revised Info   -------------------- Revised Info
Total Frames : 4219                                    4219
Duration ....: 45,003 seconds. ( 0h. 0m. 45,003s.)     45,003 seconds. ( 0h. 0m. 45,003s.)
Only DTS from BRD-A have 2012 bytes/frame and DTS from DVD-A 2013 bytes/frame. Then the size of DTS from DVD-A is greater.

eac3to show them like:

DTS-96/24, 5.1 channels, 0:00:45, 1509kbps, 96kHz
DTS-96/24, 5.1 channels, 0:00:45, 1510kbps, 96kHz

Both are valid then I think is a Muxman problem.
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Old 12th January 2014, 13:46   #3  |  Link
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Thanks tebasuna51,

I noticed the kbps size and framing differences too. But as I don't have a copy of the DVD specification I was unable to determine whether a difference of 1kbps or 1byte frame would be an issue

Anyway, I've sent mpucoder a PM, so maybe he can 'chip in' with his thoughts.

Thankfully both elementary streams seem to play okay in software and hardware media players, which is encouraging.

When it comes to working with non HD DTS streams, apart from DTSParser and DCAenc, are there any other recommended DTS applications?
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Last edited by SeeMoreDigital; 12th January 2014 at 17:26.
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Old 12th January 2014, 17:22   #4  |  Link
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It is not a muxman problem.
By DVD Video spec DTS frame size should be 2013 for 1536 streams and 1006 for 768 streams
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Old 12th January 2014, 17:29   #5  |  Link
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Quote:
Originally Posted by bigotti5 View Post
It is not a muxman problem.
By DVD Video spec DTS frame size should be 2013 for 1536 streams and 1006 for 768 streams
Is there a way to change the frame size without re-encoding?
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Old 12th January 2014, 20:01   #6  |  Link
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IMHO no
Scenarist and Muxman reject files, good old DVD Maestro muxes such streams fine.
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Old 12th January 2014, 21:12   #7  |  Link
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I wonder if I might have more luck creating a DTS Audio CD.

Does anybody know if there tools that can place a DTS stream into the WAV container?
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Old 12th January 2014, 22:01   #8  |  Link
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DTS Audio CD use 44.1kHz
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Old 15th January 2014, 10:43   #9  |  Link
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Quote:
Originally Posted by bigotti5 View Post
DTS Audio CD use 44.1kHz
Yes, I'd forgotten about that. Bummer!
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Old 9th March 2014, 19:31   #10  |  Link
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Quote:
Originally Posted by SeeMoreDigital View Post
Is there any particular reason why the DTS elementary stream extracted from a BRD-A is rejected by Muxman?
I've worked out a way of solving this issue.

All you have to do is chop-off and save a few milliseconds from the beginning of DVD-A's (2013 bytes/frame) elementary DTS stream. And add it to the beginning of a BRD-A's (2012 bytes/frame) elementary DTS stream.

After they are added together, Muxman no longer rejects the new elementary DTS stream.

This now means it's possible to back-up the 96/24 DTS audio from a Blu-ray audio (HFPA) disc onto a DVD~R, complete with basic menu and track selection
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