What is peak normalization and what does it change?

What is peak normalization and what does it change?

Peak normalization applies a uniform level adjustment so the highest sample peak reaches a chosen target. It does not even out quiet and loud phrases independently. Compression changes dynamics; normalization changes the overall scale of the waveform.

Try this workflow

1. Listen to the original and decide whether a level change is needed.
2. Enable peak normalization in Volume & Fades.
3. Compare the exported recording without assuming louder means cleaner.

What to check before you finish

Existing hiss, reverb and separation artifacts rise with the useful audio. Peak normalization does not repair clipping and does not measure a song's perceived loudness in the same way as integrated loudness analysis.

A practical example

Two songs can both peak near minus one decibel and still feel very different: one may have quiet verses and sharp accents, while the other stays dense throughout. Normalizing them does not erase that difference. Listen at a sensible reference level instead of judging loudness solely by the highest peak shown in a file.

More questions

Does normalization make every song equally loud?

No. Songs with different dynamics can have the same peak level but sound noticeably different in loudness.

Can normalization make a vocal louder than its backing?

Not when they are already combined. Uniform gain changes scale both together. Adjust separate tracks or relevant stems to change their relative balance.