Fade in / out capabilities for the Audio Playlist

Hello,

I would like to suggest the possibility of having a fade in/out function for Audio playlists. The idea is, in case you have background music with some live announcements or a countdown before starting the main program, to be able to have a smooth ending of the music by the time you want to start speaking live. Or the same for the moment you want to start ending the live presentation, get some background music to start smoothly.

Thank you

John O