DTS in an AVI file

[Maxiuca]

Hi,

where can I get filewriter.ax and dtssource.ax? It seems that the links from this tread are down...

BTW. To playback dts files, should I use ivaudio from WinDVD3 or WinDVD4?

BTW2. :) Is there any tool that allows muxing a dts file to a vob file? I need to have a vob file that'll have ony dts sound in it. I managed creat such vob file with DVD Decrypter by turning the stream processing on demuxing everything but the DTS stream, but that's not quite the thing I want to do...


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Maxiuca

[alexnoe]

Here's a mirror: http://www-user.tu-chemnitz.de/~noe/Video-Zeug/AVIMux%20GUI/DTS.zip

WinDVD Platinum must be installed to replay DST AVIs

[olorin]

Just made an OGM with dts sound that plays like a charm in any player :)

Details:
Movie: xXx
Ripper: Smartripper, also demuxed the dts which was 5.1 768kbps.
Video encode: Xvid, hvs-better, vhq-4, chroma+opt, no b-frames at 1500kbps using vdubmod.
Muxer: Ogmuxer

All progs latest version.
Also installed Intervideo Windvd Platinum, dtssource.ax, avi2ac3dts.ax, DTSWAVSource.ax

[Blight]

A few experiments...

DTSSource on DTS-WAV file doesn't work... I then used Graph Edit (AVI/WAV Parser -> Dump) to get only the DTS data, but even then the DTSSource filter didn't recognize the content.

Does any have any sample AVI file with DTS audio so I can experiment on a bit? (small file)

[gabest]

dts-wav has a silly file format, not just because every 2 bits out of 16 were left empty, but because it has a wave header with a PCM format tag and so the wave parser creates a PCM media type for it making a dts-wav decoder/transcoder filter impossible to register. It could have been handled in the source filter too, but I didn't implement the reading of this files yet.

[alexnoe]

BTW, don't even try to use AVI-Mux GUI for 14-out-of-16 bit files...even if it recognises the sync header, the output is most likely crap, if you get any output at all...

[Blight]

gabest:
If the filter could be made to load the file, A custom function could quickly read the WAV header and create a special graph for it.

The same can be done on a source filter level, but that may break standard WAV playback.

BTW, Microsoft in in denial regarding the VMR9 and Navigation issue... If you can pitch in and comment about it in the DirectX SDK board, we might actually get them to test it out.

[gabest]

Done :D

[specise_8472]

This may be a bit off topic, then again not:)

The missing bits can be used for HDCD encoding material. IE 20bit sound. That is why there is a flag bit in the DTS header specs for it.

Just a bit of trivia.
Here is a quote from the originators of HDCD

Another area where Pacific Microsonics is working to broaden HDCD applications is multichannel delivery. In January, the company announced an agreement with DTS Entertainment (Digital Theater Systems Inc.) to "work together to enable producers, engineers and record labels to use the HDCD process as the front-end recording technology for DTS Digital Surround 5.1 music CD releases." Ritter explains that "in the DTS header there is now a place for a flag that has been identified as an HDCD flag. That feature is implemented now in DSPs from companies such as Analog Devices that handle decoding of both DTS and HDCD. If a player has both DTS and HDCD in it, then if a DTS recording was made with HDCD, the HDCD playback filter will be selected. But there will be no amplitude processing going on." Ritter also notes that with the Model Two, HDCD encoding will be possible not only for DTS CDs, but also for DTS tracks on DVD-Video discs.