Disable notifications when other audio is playing
132102
How can I disable the notification sounds while playing music?
8704
Toggles for chat notifications
36089
Change audio output depending on which one is on
61615
Disable Mac startup sound
152288
How can I change media volume when no media is being played?
87561
How do I individually mute audio per tab in Chrome or Firefox?
83487
Disable Repeated System Alerts in iOS 7
103576
How do I disable autoplay on YouTube?
144068
How to disable headphone detection?
23516
How do I disable the drum beat sound on the login screen?
123435
Disable OS X startup sound
138520
How to disable system beep for non-privileged user
4906
Silencing "Your disk is almost full" notification
139923
How can I set sound to mute by default, but automatically "un-mute" when I plug in headphones in Windows 7?
88151
How to turn off Facebook notifications on Mac OS X?
50571
How to turn off notifications for individual apps?
146167
How can I mute the YouTube app while playing music on another player?