ac3 problem

Microsoft Windows specific usage questions
Forum rules
Please post only Windows specific questions in this forum category. If you don't know where to post, please read the different forums' rules. Thanks.
ymca
Blank Cone
Blank Cone
Posts: 26
Joined: 20 Sep 2008 00:27

ac3 problem

Postby ymca » 31 Oct 2008 15:12

Hi,
In some video files there is a sound problem.
when I try to play it in VLC it gives me just stereo sound.
when I play it in zoomplayer it plays but just if I go to
filter properties/AC3 filter & mark the option - use SPDIF (passthroug).
in VLC there is no option like that that I saw.
I hope there will be
(the ac3filter is ver. 1.51a)

Cheers.

Arite
Big Cone-huna
Big Cone-huna
Posts: 2478
Joined: 26 Jun 2007 20:40
VLC version: 3.0.20
Operating System: Debian Testing|Win10

Re: ac3 problem

Postby Arite » 31 Oct 2008 15:49

VLC doesn't use AC3Filter - VLC uses it's own codecs.

When the video is playing in VLC try:
Audio >> Audio Device >> A/52 over S/PDIF

Arite.
Don't use PMs for support questions.

ymca
Blank Cone
Blank Cone
Posts: 26
Joined: 20 Sep 2008 00:27

Re: ac3 problem

Postby ymca » 31 Oct 2008 16:55

not good for me.
when I use the A/52 over S/PDIF, I get stutters in the sound.

p.s

I have d/l VideoInspector & used it on the problematic file.
so now i know that the file was ac3 2.0 (stereo) & not ac3 5.1
but in the zoomplayer it sounds much better in SPDIF passthrou instead of the VLC stereo.

Arite
Big Cone-huna
Big Cone-huna
Posts: 2478
Joined: 26 Jun 2007 20:40
VLC version: 3.0.20
Operating System: Debian Testing|Win10

Re: ac3 problem

Postby Arite » 31 Oct 2008 17:44

Try changing to the "waveOut" output module. Go to:
Tools >> Preferences... >> Select "All" for "Show settings" (bottom-left hand corner) >> Audio >> Output modules

And select waveOut. Save settings, restart VLC, and then try A/52 over S/PDIF.

Arite.
Don't use PMs for support questions.

ymca
Blank Cone
Blank Cone
Posts: 26
Joined: 20 Sep 2008 00:27

Re: ac3 problem

Postby ymca » 31 Oct 2008 17:55

It works... :D
nice,
thnx.

ymca
Blank Cone
Blank Cone
Posts: 26
Joined: 20 Sep 2008 00:27

Re: ac3 problem

Postby ymca » 03 Nov 2008 01:06

there is 1 drawback with this method.
I cannot change the volume, can I?

Arite
Big Cone-huna
Big Cone-huna
Posts: 2478
Joined: 26 Jun 2007 20:40
VLC version: 3.0.20
Operating System: Debian Testing|Win10

Re: ac3 problem

Postby Arite » 03 Nov 2008 01:21

Possibly not using the Windows Mixer. VLC's volume control might work? Use the external amplifier to do that otherwise (the recommended method when using external amplifiers normally anyway).

Arite.
Don't use PMs for support questions.

ymca
Blank Cone
Blank Cone
Posts: 26
Joined: 20 Sep 2008 00:27

Re: ac3 problem

Postby ymca » 11 Nov 2008 11:24

VLC's volume control not working. :(
The only thing that do work is the volume control on my keyboard.
(probably because it controls the Wave volume)

VLC_help
Mega Cone Master
Mega Cone Master
Posts: 25661
Joined: 13 Sep 2006 14:16

Re: ac3 problem

Postby VLC_help » 11 Nov 2008 12:18

You cannot control volume if you use A/52 over S/PDIF. It would require re-encoding of the packet audio and VLC can't do that, also it would decrease quality of audio. That is why you have to control audio level from amplifier.

ymca
Blank Cone
Blank Cone
Posts: 26
Joined: 20 Sep 2008 00:27

Re: ac3 problem

Postby ymca » 11 Nov 2008 13:22

It would be nice to have control over the windows wave volume in "spdif" mode instead f the regular volume.

Arite
Big Cone-huna
Big Cone-huna
Posts: 2478
Joined: 26 Jun 2007 20:40
VLC version: 3.0.20
Operating System: Debian Testing|Win10

Re: ac3 problem

Postby Arite » 11 Nov 2008 17:00

That would defeat the object of S/PDIF since the idea to to transfer audio as-is to an external hardware decoder and/or amplifier. If you want to control the volume in Windows output in 5.1 through the Windows Mixer to your external amplifier via other connectors.

Arite.
Don't use PMs for support questions.

ymca
Blank Cone
Blank Cone
Posts: 26
Joined: 20 Sep 2008 00:27

Re: ac3 problem

Postby ymca » 11 Nov 2008 18:18

Ok, so there can be an option that let a user choose to leave it as is or to change it.


Return to “VLC media player for Windows Troubleshooting”

Who is online

Users browsing this forum: No registered users and 52 guests