IE and notification sounds

[BTRY B 529th FA BN]

I'm using IE and I am not getting any sound notifications from the sight i'm logged into. I think it's either OS or IE settings side,, anyone familiar with where the problem could be?

 

[Ketchup]

Does this affect every site on IE?

 

[BTRY B 529th FA BN]

It works fine with youtube, i'll have to check the sight or make a report of the sound not working