Digital Audio Output (AC3/DTS SPDIF pass-through)?

[pty80]

First of all a big thank you to everyone involved in getting XBMC to Windows! XBMC's future is looking better by the minute. Finally I can watch Hi-Def content in XBMC :-)

As for my question, has anyone gotten Digital Audio to work? When set to "Analog" I get stereo sound, but whenever I switch the Audio output to "Digital" I observe the following behaviour:

- no audio at all
- the video seems to playback at higher speed than normal (approx 1.5x - 2x faster)

I have a SB Connect which is connected to a JBL AC3/DTS suround setup with an optical cable. SPDIF pass through is working fine on my system with other movieplayers.

I have no idea what version of XBMC_PC I'm using, but it's the one at this link: http://www.megaupload.com/?d=UDMNXCT0 (ie the first one in Wiso's "XBMC for Windows SVN build (SDL/OpenGL)" thread). I'm using it with T3CH's 2008-03-09 rev11970 build.

My system:
Windows XP SP2 - Intel Core 2 Quad6600 - 2GB RAM
Nvidia GT7300EN

[budwize]

if your motherboard has onboard sound try disabling your SB card
im using my onboard sound and its working perfect with the build dated 10/02/08 and Wiso's latest exe

[rollin]

I have the same problem. I use a ALC655. At anaolog output i get Stereo and on digital no sound at all and the video speed is faster.

[CrazyIvan]

With mine set to digital, all stereo files (video and music) play normally including the XBMC sounds. However when I try to play anything that has AC3 audio I get what is described here. This is with onboard sound via SPDIF which works flawlessly for everything else.

[Hitcher]

Originally Posted by rollin

I have the same problem. I use a ALC655. At anaolog output i get Stereo and on digital no sound at all and the video speed is faster.

Exact same problem here.

[nc88keyz]

i concurr same issues with video speeding up with digital. Using p4pE which has similar onboard sound.

I sunday experimental build would be nice with recent changes to the svn .

thanks

[Lowen SoDium]

I have the same problem when set to digital, going through the HDMI port on my ga-73pvm-s2h gigabyte board. (Nvidia 630i/7100).

Even weirder is when I set it to analog (in XBMC), I get sound, but only the left right channels when playing a file with AC3 or DTS audio. No center, surrounds, etc. (Note, I do have it plugged in to a TV that is only stereo)

What makes this weird is that TV shows will have all of their music and sound effects, but no dialog at all. It's creepy.

Short of the long is that I can not down-mix surround to stereo.

[Phobia]

Hi all,

Don't mean to double post, but I already replied about this issue in another thread.

I too experience this with onboard nVidia "HD" audio - optical spdif output.

Big thanks to all the devs - this is a brilliant effort!

-- Phob

[anyo]

Same problem here... video plays fast, no digital pass through... tho the navigation sounds and music works fine.

I have a SB live SE 7.1 card.
vista 32bit

[WiSo]

Any example vids for download (only legal stuff please)?
I don't have a digital environment so testing won't be possible but I could at least see if (and hopefully why) the video rate is doubled.
Also please remember to post the full log to pastebin.