The VideoLAN Forums

Hi,
if I activate S/PDIF, then the sound lags and stumbles in few tone loops. Not a nice hearing experience..

My setting: win xp sp2 - audigy 2 zs - activated s/pdif passthrough in creative console. Then a digital output into a decoder.

The Decoder detects, that there is a digital output (Dolby Digital) via s/pdif. Anyway vlc isn't able to deal with the dolby digital stream, transporting via s/pdif - why that? Is there a special "expert setting" in the settings menu, which I haven't seen?

Setting stereo is no problem, it's only a problem with the s/pdif. With PowerDVD it works fine.

Use Waveout (not DirectX) from VLC settings. This is known issue.

Oh thanks, awesome, it works.

BUT, after the settings change I can't change the loudness while the dolby digital dvd movie is running. Is that normal?

Use Waveout (not DirectX) from VLC settings. This is known issue.

I have set that and tried all different combos but nothing makes the audio right. It only sounds "better" with the waveout setting. I even tried reverting to the old over 8.2 and still no luck I have the same setup as the OP in this thread. Also, AC3 filter does not work for me so I was hoping VLC would! DVD's played thru powerdvd DO work, but that's it. TIA for any help!

You can't change volume of AC3 streams on fly. You have to do that in decoder side (usually in amplifier).

techshare31: Use Media Player Classic, it should work (built in DTS and AC3 decoders). AC3filter should work (just not with VLC as VLC doesn't use external decoders).

Use Waveout (not DirectX) from VLC settings. This is known issue.

I have set that and tried all different combos but nothing makes the audio right. It only sounds "better" with the waveout setting. I even tried reverting to the old over 8.2 and still no luck I have the same setup as the OP in this thread. Also, AC3 filter does not work for me so I was hoping VLC would! DVD's played thru powerdvd DO work, but that's it. TIA for any help!

I got the same problem even after I switched the Output Modules to Win32 waveOut extension output or others. But something works below:

viewtopic.php?t=29224&start=15&postdays ... highlight=

But after some tests, the better result is on the MPC(Media Player Classic with K-Lite Codec Pack) side. No silence break gaps(occurs sometime with VLC output directly through S/PDIF).

My Set:
TOSHIBA M50(Notebook) > MPC(Filter/AC3 audio decoder) > M-Audio FW1814 sound card with digital coaxcial audio output > JS DE006 Decoder > JS 5.1 speakers.