Page 1 of 1

Never ending SPDIF output chopping bug

Posted: 01 Nov 2008 19:22
by pion
Symptoms; Select SPDIF as audio output, and sound starts chopping right away. Like a 0,2s buffer on repeat for 2 seconds, then a new 0,2s sound is repeated over and over. If You pause the playback, the sound is still present.

Fixes;
* Select Waveout as output in preferences. (Only on some soundcards)
* Don't use SPDIF as audio output

Broken on theese soundcards;
- Waveout not working:
* SoundMAX ADI1988B (Integrated chip on Asus Striker Exteme)

Broken in version;
0.8.6
0.9.2
0.9.4
1.0.0-git-20081004-0006 Goldeneye

When is this bug going to be adressed?


I have seen a post some months ago suggesting an open source (GNU) audio output module where this problem didn't exist. I will try and find it again if wanted.

Re: Never ending SPDIF output chopping bug

Posted: 03 Nov 2008 10:39
by VLC_help
This issue might get fixed when atmo has some extra time.

Re: Never ending SPDIF output chopping bug

Posted: 28 Nov 2008 22:55
by dolezelt
Solution is easy. Try to use libaout_directx_plugin.dll from VLC version 0.84. It is located in plugin directory.

Re: Never ending SPDIF output chopping bug

Posted: 07 Jan 2009 04:28
by leif81
Solution. I upgraded to VLC 0.9.8.a and then changed Output Type = Win32 waveOut

I watched a full 45min video with A52 over SPDIF audio flawlessly. Finnally!!

Re: Never ending SPDIF output chopping bug

Posted: 09 Mar 2010 12:31
by pion
wave32 fix has never worked for me. And now, the plugin replace doesn't work either!

Using vlc 1.0.5

Re: Never ending SPDIF output chopping bug

Posted: 09 Mar 2010 14:58
by VLC_help
VLC 1.1.0 will have better DirectX SPDIF support.

Re: Never ending SPDIF output chopping bug

Posted: 09 Mar 2010 18:36
by pion
I tried vlc-1.1.0-git-20100305-0002-win32.exe and I can confirm that this release is working excactly as older versions did with the 0.8.4 plugin.

I get proper audio on my hardware, but the volume control is rendered completely useless. Including mute.

But that is also the case in windows media player 12.

I performed my test on a x264 encoded clip.

Re: Never ending SPDIF output chopping bug

Posted: 10 Mar 2010 17:24
by VLC_help
but the volume control is rendered completely useless. Including mute.
I should be like that. You have to control volume from your AV receiver or from speakers.