A_DTS

[mugs]

I recently found a concert in MKV format and the title says that the
audio is DTSMA. Since I dont normally trust postings on the internet
untill I check them out, I did a quick check with media info. I was a
little unsure as to the info I got from this as I had never seen it
before or at least had never noticed. Following is info from the above
mentioned file followed by a dts CD. Please take note of the A_DTS in
the first info. Can anyone tell me what the difference is( I am hoping
that it is indeed DTSMA). BTW I am not concerned with the sampling
rate and bit depth only with the A_DTS bit.

First:

Audio
ID : 2
Format : DTS
Format/Info : Digital Theater Systems
Codec ID : A_DTS
Duration : 1h 43mn
Bit rate mode : Constant
Bit rate : 1 510 Kbps
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Video delay : 11ms
Stream size : 1.09 GiB (17%)
Language : English

Second:

ID : 0
Format : DTS
Format/Info : Digital Theater Systems
Format profile : LE / 14
Codec ID : 1
Codec ID/Hint : Microsoft
Bit rate mode : Constant
Bit rate : Open
Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 44.1 KHz
Bit depth : 20 bits
Stream size : 361 MiB (100%)

[Lokkerman]

Mugs, sorry but never seen this myself at all; we must have someone here in the know?

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[mircea raibulet]

Hey,mugs,

Open the file in avimux guy or in mkvextract guy[along with mkvtoolnix].See what it shows...then extract audio and analyze yourself bitrate etc.Alternatively u could use multiavchd.

Cheers,

M

[polmuaddib]

Couldn't find an example for DTS-HD MA, but it looks similar to Dolby
TrueHD. Here is an example:

Audio #1
ID : 4352 (0x1100)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Format profile : TrueHD / Core
Mode extension : CM (complete main)
Muxing mode : Stream extension
Codec ID : 131
Duration : 2mn 33s
Bit rate mode : Variable / Constant
Bit rate : 640 Kbps
Maximum bit rate : 10.0 Mbps
Channel(s) : 8 channels / 6 channels
Channel positions : Front: L C R, Side: L R, Back: L R,
LFE / Front: L C R, Side: L R, LFE
Sampling rate : 96.0 KHz / 48.0 KHz
Bit depth : 16 bits
Stream size : 11.7 MiB (3%)

Audio #2
ID : 4353 (0x1101)
Menu ID : 1 (0x1)
Format : AC-3
Format/Info : Audio Coding 3
Mode extension : CM (complete main)
Codec ID : 129
Duration : 2mn 33s
Bit rate mode : Constant
Bit rate : 640 Kbps

Channel(s) : 6 channels
Channel positions : Front: L C R, Side: L R, LFE
Sampling rate : 48.0 KHz
Bit depth : 16 bits

Stream size : 11.7 MiB (3%)

It is usualy displayed in two parts, because there are 2 parts. The
first is the core and the other is HD extension. I've seen DTSHDMA in
mkv and it looks similar. But It's strange that the other part of
audio is a different clock (44khz). Maybe mediainfo made a mistake.
Check it through PDVD10 if you can.

On Jan 2, 8:00 am, Tab Cursor <tabcur...@gmail.com> wrote:
> Mugs,
>
> The MKV container will indeed hold a DTS HD MA soundtrack. From what
> you've displayed here, it sure looks like DTS only core audio. I'd use
> any of these four programs to check for bluray audio:
>
> eac3to ... just go to a cmd prompt in windows and type eac3to
> filename.mkv ... eac3to will recognize and display both DTS HD MA and
> TRU HD... You can also split the audio out for use in other programs.
>
> tsMuxer ... You can load your MKV file into this GUI and it will
> recognize and display both DTS HD MA and TRU HD.... You can also de-
> mux (split) the video and audio apart or re-mux to AVCHD (.m2ts) file
> format.
>
> AudioMuxer ... I'm pretty sure this one will rip out DTS HD MA from
> MKV. I know it does this with .M2TS... Not TRU HD.
>
> Cyberlink PowerDVD .... Just drag and drop the .MKV file into
> PowerDVD. In the audio options drop-down box, you will see if it
> includes DTS HD MA and can select whether to let PowerDVD decode it or
> just pass it through to your receiver.
>
> Hope this helps....

> > >http://groups.google.com/group/SurroundSound-Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -

[jolson]

"Bit rate : 1 510 Kbps "

...says it all. Lossy, so called "fullrate" DTS.