VLC defaults to 400% volume after playing ac3...

macOS specific usage questions
MRKisThatKid
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VLC defaults to 400% volume after playing ac3...

Postby MRKisThatKid » 29 Nov 2008 18:59

VLC just now nearly deafened me!!!
I dunno if this is a Mac only problem or what but to recreate it....

* Have it set in prefs to output AC3 through spdif
* Play a video with AC3 audio.
* Quit VLC
* Play a video with standard stereo audio

It will default to 400% volume and make you jump out of your skin in shock!

MRKisThatKid
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Re: VLC defaults to 400% volume after playing ac3...

Postby MRKisThatKid » 03 Jan 2009 01:23

Anyone? It just did it again grrrrrr!

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Re: VLC defaults to 400% volume after playing ac3...

Postby Jean-Baptiste Kempf » 03 Jan 2009 09:23

Are you sure you don't have an audio filter activated like normvol ?
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MRKisThatKid
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Re: VLC defaults to 400% volume after playing ac3...

Postby MRKisThatKid » 21 Jan 2009 13:40

I haven't even changed any other setting but "use SP/DIF when available". And just to make sure I have (a few times) deleted all references to vlc in ~/Application Support and ~/Preferences.

Still happens though.

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Re: VLC defaults to 400% volume after playing ac3...

Postby GWBasic » 08 Oct 2009 21:36

I have this same problem... It's VERY annoying. This happens on both my Mac Pro and Mac Mini when I use SPDIF. When I use the analog out, the volume issue goes away.

What I see is that the volume jumps to 400% whenever AC3 or DTS is used. (Specifically, this is when VLC sends AC3 or DTS to my reciever.)

For example, I just played a DVD that uses PCM in the menu. When the DVD started, the music was loud and distorted, so I turned the volume down to 100%. As soon as I started playing, the soundtrack was AC3, so VLC's volume jumped to 400%. My receiver indicates that it's getting AC3 and there is no distortion.

VLC's default volume changes whenever I do AC3 or DTS over SPDIF, so if I set the default volume in Preferences, it changes back.

(For those not familiar with how AC3 and DTS work, they send encoded audio through the SPDIF to the receiver. Both AC3 and DTS rely on the stream being bit-for-bit exact, so if VLC tries to do any form of processing on the stream it will result in static. Therefore, VLC can not alter the volume when sending AC3 or DTS over the SPDIF.)

Again, this is very annoying.

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Re: VLC defaults to 400% volume after playing ac3...

Postby neenja » 14 Oct 2009 02:12

i also have thsi problem, with any file that is. when i start up vlc, it defaults the sound to 400% which is insanely too loud

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Re: VLC defaults to 400% volume after playing ac3...

Postby gregor7000 » 23 Jan 2011 15:52

hi,

i have also this problem on fedora 14.

installed versions:
Fedora 14 2.6.35.10-74.fc14.x86_64
vlc-1.1.5-1.fc14.x86_64

greetings
gregor

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Re: VLC defaults to 400% volume after playing ac3...

Postby ajmas » 26 Jan 2011 19:17

If anyone has access to Windows, can you see if that happens there too? Also could you please open a ticket to track this.
Providing logs, messages, configuration info (VLC, OS, Hardware) and a clear explanation of the issue always helps the problem solvers help you, even if they don't end up solving the issue. Just think what you would need if you were solving someone else's problem. Additional: Always looking for eager and capable MacOS X developers to join the VLC team - for more information see here.

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Re: VLC defaults to 400% volume after playing ac3...

Postby lowcommotion » 02 Apr 2011 05:36

I have a similar problem and I'm running Windows 7 64bit.

The volume defaults to 175%, however, not 400%.

Let me know if I can provide further information.

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Re: VLC defaults to 400% volume after playing ac3...

Postby tokostudio » 09 Jul 2011 20:38

I had the same problem on Mac OS X as well

I went to ~/Library/Preferences/VLC and edited "vlcrc"

Look for this line:

Code: Select all

# Default audio volume (integer)
And there should be a line below it that defined the default volume (it may be commented out, in that case remove the # in front of it)

Mine was set to 125%, I changed it to 100% and that fixed it for me.

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Re: VLC defaults to 400% volume after playing ac3...

Postby fkuehne » 10 Jul 2011 18:54

You can also set this option in the Audio category of VLC's advanced preferences (switch from "basic" to "all" at the bottom left of the Preferences window to see it).
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