How to set Fade in and Fade out audio in Windows Movie Maker
Fading out is a common audio transitions. Audio fades in and increases to the maximum volume, and fades out and decreases to the maximum volume.
Fade audio in or out
1.To set fading in and fading out for your music, you have to click the music on Timeline to select it at first.Enter the setting mode.
2. You can set gradient here and drag the slider to set the duration. Click "Return" to save your change.