Do you often feel upset because your video files are too loud or too quiet? Now, you can have video collections with proper audio volume with BS FAG! BS FAG will fix audio gain in video files to proper audio volume level with clipping sound prevention. It allows custom volume level and clipping control if prefered. Multiple audio tracks processing is supported seamlessly. BS FAG only modifies audio part thus other parts remain the same. 

The whole process could be done manually, but the process steps requires technical works and right softwares. BS FAG here can be a great help.

Starting version 4, it supports file names in international characters (Baltic, Cyrillic, Chinese, Japanese, etc.). 


How To Use

Be warned that the audio will be converted as it will alter its quality. Although similar original audio specification will be applied, the result will be different. Tested on 3GP, AVI, MKV, MOV, MP4, MPG, WMV, etc. You may try on other types with care.

FFmpeg is copyrighted by the FFmpeg developers (
mp3gain is copyrighted by Glen Sawyer (
aacgain is copyrighted by Dave Lasker (