macOS Mojave 10.14
Change Playback preferences in iTunes on Mac
In the iTunes app on your Mac, use the Playback pane of iTunes preferences to choose how to fade songs in and out, change music sound quality during playback, and more.
To change these preferences, choose iTunes > Preferences, then click Playback.
Crossfade Songs | Fade songs in and out, with no silence between songs. Drag the slider to change the amount of time it takes for the current song to fade out at the end and the new song to fade in. | ||||||||||
Sound Enhancer | Change the music’s sound quality during playback. Drag the slider to increase or decrease the Sound Enhancer’s effect. | ||||||||||
Sound Check | Play all music and video at the same volume level. | ||||||||||
Video Playback Quality | Choose the option (Best Available or Good) that works best with your computer. |