Audio Normalization

Audio normalization is the application of a constant amount of gain to an audio recording in order to bring the average or peak amplitude to a target level (the norm). Because the same amount of gain is applied across the given range, the signal-to-noise ratio and relative dynamics are generally unchanged. Normalization differs from dynamic range compression, which applies varying levels of gain over a recording to fit the level within a minimum and maximum range. Normalization is one of the functions commonly provided by a digital audio workstation.