Lucky me, I've never heard sounds on the OGR forum
Ditto.
I have a couple 'disablers'....
The volume button on the computer speakers....turned 'off'.
The OPHA's (Old Phart's Hearing Aids) stuck in my auditory receptors...turned all the way 'down'.
(The latter has domestic advantages, too.)
Aside: Still bugs me when my doctor looks into the ears with his otoscope and mutters, 'Yep, nothing there!'