volume enhancer

[allo]

Is there a program that will change the sound volume of a ripped DVD? as in DivX etc?? cheers

[Pookie]

Quite a few apps will do that, but it depends if the audio file in the Divx AVI is mp3 or ac3. Here's one of many ways to accomplish this, assuming the audio is mp3 -

Needed - ffmpeg.exe and mp3gain.exe (and maybe pthreadGC2.dll). Google for all.


ffmpeg.exe -i "Your-Divx-File.avi" -vn -acodec copy -y audio.mp3
ffmpeg.exe -i "Your-Divx-File.avi" -an -vcodec copy -y video.avi

mp3gain /f /r /c *.mp3

ffmpeg -i audio.mp3 -i video.avi -acodec copy -vcodec copy -y "Louder-Divx-File.AVI"

Using mp3gain on the extracted MP3 is one of least destructive ways to boost the volume,
since the audio doesn't need to be decoded to WAV, normalized, and re-encoded to MP3.
If you're not satisfied with the new volume level, there are additional switches in mp3gain.exe
which you can try.

[allo]

many thanks.