Kodi Community Forum - DTS wav file only plays two channel through spdif

Hi,

I have problem playing DTS wav file in XBMC. I enabled digital out and DTS/DD passthrough. If I play DTS wav file, it only plays two channel and not 5.1. Surprisingly, if I play AVI with 5.1 AC3 sound, it plays perfectly fine.

Below is the log file. The first file played is DTS wav file and second playback is AVI (which works fine).

Since AVI works fine, I think there seems to be no problem with the hardware setup. I also tried playing DTS wav file using AC3filter (spdif passthrough) and it played fine. Hence there is something I am missing in XBMC.

Any help will be highly appreciated.

Thanks

Logs : http://pastebin.com/m422954e3

Can you try playing the offending file with dvdplayer? focus file > context menu > play using > dvdplayer

althekiller Wrote:Can you try playing the offending file with dvdplayer? focus file > context menu > play using > dvdplayer

dvdplayer outputs white noise.

Cool, new debug log.

Btw, I tried with latest SVN and results are the same. Here are the logs from SVN version

http://pastebin.com/m1546a78e

That Debug Log uses PAPlayer, not dvdplayer. Can you post a sample file somewhere?

Here is new logs with both PAPlayer & DVDPlayer. http://pastebin.com/m3d27fd7e

PAPlayer plays the song but only two channels (not passthrough) & dvdplayer just outputs noise.

Song: http://www.mbmania.com/bin/DTS_44khz.rar

Thanks.

This can also happen if you sound card is changing the file in any way. I know for my Diamond sound card I had to use a hacked driver to get pure pass thru. The card has a fairly common chipset, the CMI 8768+. Lots of people think they are getting a pure pass thru, but they arent.

http://code.google.com/p/cmediadrivers/

explaination of bit perfect.
http://code.google.com/p/cmediadrivers/wiki/Bitperfect

I would doubt because AC3filter is able to passthrough the same DTS file over spdif. So sound card does not seems to be culprit here. Thanks for the response though. Btw, Soundcard is onboard ACL662

Any help please.

Please DO NOT bump your own threads in <24hrs without adding new pertinent information.

What is the sampling rate of the file? I recall Phi posting somewhere that 44.1Khz DTS audio isn't currently bitstreamed by XBMC and only 48Khz is.

mitul103 Wrote:What is the sampling rate of the file? I recall Phi posting somewhere that 44.1Khz DTS audio isn't currently bitstreamed by XBMC and only 48Khz is.

I don't think that's true. XBMC can do 44.1 because it is natively using ffdmpeg which is capable of.

ekul Wrote:I don't think that's true. XBMC can do 44.1 because it is natively using ffdmpeg which is capable of.

Well since Phi is the resident XBMC audio guru, I think I trust him a bit more than you. Anyways it looks like some work was done on fixing this problem recently. Read this for a potential solution:

http://forum.xbmc.org/showthread.php?tid=51286

Just to update, I tried media player classic - home cinema and I disabled the internal switcher, DTS works like a charm. But still struggling with XBMC to get DTS wav working. Any help based on logs I posted?

Thanks