Edit Audio Louder In Mp4 Files

Got some video files that the audio is too low or the files have different volume levels.

There used to be a program that would normalize the audio in all mp3 files in a folder.

Is there something similar for mp4 video files?

Thanks
Trik

 

Mp4Gain costs $40.
http://mp4gain.com/purchase.php

Here are instructions for VLC.
https://www.techjunkie.com/normalize-volume-vlc/

 

Thanks all.

VLC doesn't actually edit the file though does it?
I believe it only makes the changes while playing it in VLC...

 

Correct.

 

If you use AC3Filter click 'Auto Matrix' on the Mixer tab.

 

Thanks again all.
Found an app called Free Video Volume Booster that did the trick.

 

You can use FFmpeg

ffmpeg -i inputfile -vcodec copy -af "volume=10dB" outputfile

(Increase 10dB)

or even

ffmpeg -i inputfile -vcodec copy -af "volume=2.0" outputfile

(That will double the "loudness").

The process is very fast. Make sure inputfile and outputfile don't have the same name.

 

Forgot to add:

ffmpeg -i input.mp4 -af "volumedetect" -f null /dev/null

Wil give you the volume the file has, so you can decide how much you want to increase/decrease it.

 

Groovy

Thanks again.
Bookmarked this page.