Change audio volume
Boost a quiet recording, or level a track to a broadcast loudness target.
Your file
Drop a file here, or click to choose
It stays on this device. Nothing is sent anywhere.
Settings
Three ways to get louder
- Fixed gain multiplies everything by the same amount. Simple and predictable. Push it too far and the loudest peaks clip, which sounds like crackle.
- Normalise to -16 LUFS measures perceived loudness across the whole file and adjusts to the level podcast platforms expect. This is the right choice for spoken word.
- Peak normalise evens out the difference between loud and quiet passages, which helps recordings where someone drifts away from the microphone.
How much is a decibel
+6 dB is roughly twice as loud in signal terms. +3 dB is a noticeable lift. Above +12 dB on an already reasonable recording you are mostly amplifying room noise.
Common questions
Boosting made it crackle. What now?
That is clipping. Use the -16 LUFS option instead, which raises loudness without pushing the peaks past the ceiling.
Can I remove background hiss?
Not with this tool. Noise reduction needs a different filter chain than what is exposed here.