Audio Volume Changer
Boost a quiet recording or turn down a loud one.
Drop your audio file here
MP3, WAV, M4A, AAC, OGG, FLAC, WebM…
dB
+6 dB ≈ twice as loud in amplitude; −6 dB ≈ half
dBFS
● Your audio is processed locally in your browser and never uploaded.
How it works
Normalizing measures the loudest sample and raises the whole file so that peak reaches the target (−1 dBFS leaves a little headroom for MP3 encoding). A fixed decibel change multiplies every sample by 10dB/20; going too far makes the loudest parts “clip” (distort), so the optional soft limiter gently rounds peaks above full scale instead.