Audio data is stored as a series of numerical values (samples). To increase volume, VLC multiplies every sample value by a gain factor (e.g., 2.0 for 200%).

: Click Save , then close and restart VLC for the changes to take effect.

Do not exceed 200% in VLC; if your files are too quiet, use normalization or increase your system's analog volume.

Listening test: Severe crackling, loss of intelligibility for speech, music becomes harsh.

While boosting volume is great for quiet recordings, it comes with risks: How does VLC media player boost volume beyond 100 percent?