This is another term for normalization and is similar to theSound Check feature in iTunes.
This is a non-destructive process that ensures each song you play is normalized in relation to other songs.
Audio files must be in theWMAorMP3audio format to use volume leveling in WMP 12.

From the menu tab, selectView>Now Playing.
Alternatively, use theCTRL+Mkeyboard shortcut to display the WMP main menu tab or pressCTRL+3to launch theNow Playingview mode.
Right-click anywhere on the Now Playing screen and selectEnhancements>Crossfading and auto volume leveling.

The Advanced Options menu displays above theNow Playing screen.
SelectTurn on Auto Volume Leveling.
Select theXicon in the upper-right corner of the window to exit the parameters screen.

WMP 12 only adds a normalization value after analyzing the file during playback.
SelectLibrary, then selectAdd volume leveling information values for new files.
SelectApply>OKto save the setting.

check that you don’t accidentally delete the source files for the library.
Why Does the Loudness Between Songs Vary So Much?
Often the difference is so stark that you must constantly adjust the volume while listening.


