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View Full Version : dts hd is driving me mad


hermespan
27th August 2013, 18:17
and I don't have far to go...

hi there. I've embarked on a project which has had me doing a lot of reading on the web and particularly on this forum. I am attempting to create a compilation blu ray and maintain the highest integrity for both audio and video. my platform is Mac. for editing and compiling I'm using adobe CS6.

I've had no problem extracting full res video from the disc - and really, no problem extracting the audio either. however, as you all know, dts hd ma is not manipulation friendly unless you have dts audio suite. so, using dvdfab, I converted the audio to flac and then to wav. unfortunately this results in only 6 tracks and my assumption is the initial dts>flac conversion took only the core audio and not the hd extension. I'm not certain of this, as the sampling rate of the six channels I do have is 48k/16 bit...but the fact remains I'm still missing two audio channels.

I've used both makemkv and dvdfab for extraction but have found that, with the right selections I am getting (almost?) what I need from dvdfab. from the disc, I extract a direct copy of video only to an m2ts file. then I do a second run to get the audio, which involves the dts>flac conversion. after that I just paste them back together in premiere.

has anyone had experience with these processes and can confirm 1)whether the flac audio from dvdfab is actually hd or core resolution, and 2)how to obtain all 8 channels of audio?

thanks in advance.

SeeMoreDigital
27th August 2013, 18:30
If you want the original 'full res' video stream and the original 'DTS-HD MA' audio stream. Why not simply set DVDFab to generate a 'movie only' back-up?

hermespan
27th August 2013, 19:01
I would do that, but I only need short samples (2-5 min). I would even consider copying the entire movie for those short samples, but I can't edit the audio.

nixo
27th August 2013, 19:24
1) Core only.
2) Only Arcsoft, AFAIK. Sonic does 6 channels maximum.

Edit: No idea how to get that working on a Mac.

--
Nikolaj

Sparktank
27th August 2013, 19:42
If you're crafty, you can try Windows OS virtualization on your Mac to use eac3to (with Arcsoft).

I don't believe I've heard of any real Mac solutions for dtshd decoding.

A google search for the DVDfab forum with dtshd to flac offers very little.
A request was made back in 2010 but nothing became of it.

There's DTSHD to AC3 and other formats.
As stated in this article...
Something You May Want to Know about DTS-HD MA and How DVDFab Can Deal With It (http://blog.dvdfab.com/something-you-may-want-to-know-about-dts-hd-ma-and-how-dvdfab-can-deal-with-it.html)
But if it actually does deal with the lossless part or not seems to be fully untested for all formats (6.1, 7.1, 7.1 (weird setup)).
But in your case, it seems 7.1 not supported which makes me question its support for other DTSHD formats (1.0-5.1)...

hermespan
27th August 2013, 20:07
thanks for the suggestions and responses. I am familiar with the potential of eac3to and I may employ the assistance of someone who works better with c prompts, especially seeing how there does not seem to be a solution via Mac to solve this problem. from everything I've read here it sounds like eac3to is the only solution to full res multichannel...

SeeMoreDigital
27th August 2013, 20:16
I would do that, but I only need short samples (2-5 min). I would even consider copying the entire movie for those short samples, but I can't edit the audio.Hmmm... On a Windows computer you can use DGIndex and/or TSmuxerGUI to cut the required sections - Complete with HD audio ;)

hermespan
28th August 2013, 18:33
I think I'll have to resort to a windows computer then...

A0
31st August 2013, 02:31
there is a decoder (http://www.dtshdforcompressor.com/techSpecs.html) for mac.

A Way to decode all DTS Formats with a Reference Decoder on "MAC" is the Surcode for DTS-HD Decoder in Combination with Quicktimeplayer Pro.
You can decode all DTS(HD) Formats through Quicktime Pro export as AIFF/PCM Lossless

also, makemkv (http://www.makemkv.com/dtshd/) seems working for that purpose.

doom-nine
23rd September 2013, 02:39
If you just need short samples, you can use the latest MKVToolnix to cut some parts out of your DTSHD file into mka, and then extract the DTSHD again from mka file.
To extract all the 8 channels out of DTSHD, all I can think of, is to use eac3to in Windows environment, with arcsoft as decoder.