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Old 19th June 2014, 11:12   #1  |  Link
Zagash
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Join Date: May 2014
Posts: 2
Fixing ac3 - huge volume difference between dialogs and action scenes

Hey there,

I was trying to search the web to get some proper info about how could I fix some ac3 movie files with the problem described in the title but couldn't find what I exactly want. I completely lost in results telling about particular hardware receiver units, playback settings of various player tools and huge amount of stuff I'm not interested in at all because I play these movies in whatever environment (standalone dvd players with television, various computer systems, etc) they have the same problem - so it's about the ac3 audio file and not about the playing environment.

So I got some xvid / mkv movies downloaded from the internet with the said problem: The dialog volumes are too quiet while the action scene parts are alot louder. I already extracted/demuxed the original audio files from them, some are 5.1 some only 2.0 stereo but the problem is the same. I tried to fix them with eac3to which is my favorite ac3 editing tool but no success (I'm not an expert in it tho)

I've read about Dialog Normalization people say that one is nothing to do with this issue and also about Dynamic Range Compression but I don't know any tool with the ability to change it.

So, to make it all the way clear could anyone help me please how on Earth can I fix those AC3 files to make dialogs louder while keep action scenes at their original volume?

Thank you much in advance!

Last edited by Zagash; 19th June 2014 at 12:48.
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Tags
ac3, dynamic range compression, gain, too quiet

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