The VideoLAN Forums

Thanks for that answer, but clearly for the non-expert that I am, what can I expect by changing the gain default value of 1 to 2, 10 or 100 etc ?
And more important perhaps is the validation of the method I have used to increase the volume while converting. Do you agree with it ?

I want to convert mp4 files whose audio track volume are rather low. I tried increasing the value of the gain (Preferences-"all parameters" checked/audio/filters/gain). By default, the value is 1 which I have set to different values : 1.5, 3, 10 for testing purposes. I then converted the f...