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AC3 Filter configuration

Posted on 2004-10-15
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Last Modified: 2008-02-01
I installed AC3 filter. It seems it works fine, but on some divx/xvid movies it plays a very low sound (meaning my speakers are full volume but I barely hear anything). I disabled the ac3 filter (from control panel) and I hear fine now. How can I configure AC3 filter so I will have it enabled but without a very low volume? what is wrong with the default configuration?
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Question by:stardust126
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by:Edit-HTS
ID: 12318335
The AC3 audio format is (from memory, correct me people if I'm wrong here) is for dolby digital (a special breed) 5.1 surround sound.

I downlaoded Fahrenheit 9/11 and I needed to install a AC3 filter to listen to the audio and I had the same difficulty, no matter how hard I tried to get that volume cranked it wouldn't.  Maybe it's just the way the audio is encoded?

Maybe I'm wrong.  The fact of the matter is I didn't persure the issue and I'd be interested to see if there is a fix or a configuration that could make the volume louder when filtering using AC3.

-Edit
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by:stardust126
ID: 12318514
Go to control panel, disable ac3 filter and see that your sound will work alot better... maybe less clear, but you will hear alot better.
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by:adecold
ID: 12319900
i have ac3 filter installed and i don't have any issues with the default settings there already...
 i can post the deafaul setting if you want.

you can try uninstall and then reinstall
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by:stardust126
ID: 12319926
I tried that. I even upgraded to the newest version, but nothing helps.
Are you playing divx/xvid movies with media player and sound is fine?
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by:adecold
ID: 12320156
Mine plays everything fine...
Although i installed mine through the k-lite mega codec pack
http://k-litemegacodecpack.com/index.php?content=about&type=mega
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by:ilovemykeyki
ID: 12321304
Hi I hope this can help....this also happened to me.

http://www.microsoft.com/resources/documentation/Windows/XP/all/reskit/en-us/Default.asp?url=/resources/documentation/Windows/XP/all/reskit/en-us/prdm_mtm_scit.asp

You can also change the settings of your Directx in order to hear the sound.

Regards.
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by:stardust126
ID: 12328098
No, thats not the problem.
The AC3 Filter is doing the problem. If I disable it, sound is fine (not the same quality as ac3, but I can hear something without putting my speakers to max)
I know that many other people have this problem, but I couldnt find anyone who knows a solution. I was hoping someone here could help me with what is wrong with the default configuration and how to fix it.
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yukele earned 125 total points
ID: 12516583
Hi, this is what worked for me (using ac3filter v0.70b)

Open the ac3filter config - start > ac3filter > ac3filter config

In the bottom left of the "Main" tab there is an option "Preset"

Choose the "loud" preset, restart your player.

Hope that helps
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by:stardust126
ID: 12518217
Yep, it did the work :)

Another solution I found: either disable AC3 filter (and enjoy lousy sound quality) or go to System and choose the option of "prefer other decoder" instead of "prefer AC3", on most movies it finds a better decoder that gives better sound volume.
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by:yukele
ID: 12518295
glad to have helped
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