ok, this is going to drive me insane.
how to do you turn off the sound when changing applications or desktops?
it gives this really annoying “bing!” or “woosh”
it’s driving me insane. how do I turn that off without turning off all sound?:mad:
Heh, I felt the same as you 
Go to start then “configure desktop”
In look and feel choose “Notifications”
In the drop down menu labeled “event source” choose “The KDE Window Manager”. Here you can customise all the sounds to your liking