Normalize

Normalize allows you to raise or lower the level of audio that was recorded at an inappropriate input level.

Maximum Peak Level

Allows you to normalize your audio based on the maximum peak level. Maximum Peak Level in dBFS sets a maximum peak level for the audio, between -50 dB and 0 dB. The current maximum level of the selected audio is subtracted from this maximum level, and the gain is raised or lowered by the resulting amount.