How to turn off the turn in notification sound

[CaitlinEvans]

When students submit assignments, it makes that little tick sound. How do I turn that off? My students like soft music playing in the background during test, so I can't just turn the speaker off. 

[Kat_Weiland]

If you're using Chrome as your browswer, you right right click on the tab and select "Mute site" and you will no longer hear the click, life saver, it was so annoying with soft jazz playing in the background