sonorOS suddenly went silent and isn’t making any sounds! What do I do?
Check that you haven’t accidentally turned the volume all the way down for the current active sound set, or in the main preferences. Also, make sure that sonorOS isn’t muted: click on the app icon in your menu bar or in the dock and see if it says “Unmute” in the menu. If it does, click on that to unmute the app and you should start hearing sounds again.