VLC is different. By default, the volume slider in the VLC interface goes up to . However, in the settings, you can unlock the potential to amplify audio up to 200%, 300%, or 400% . This effectively applies a software amplification filter, making quiet sounds louder without needing to touch your computer’s master volume.
(sample: quiet YouTube rip at 40% normal) vlc media player volume 400
Instead of dragging the slider to 400%, you can apply permanent gain to a file: VLC is different