answer:Turn off: no, not so far as I know. It’s just there, part of the experience of perception for those who have it, the same as (I presume) color-blindness or perfect pitch. But it doesn’t have to be noticed. To the extent that you can filter out ever-present stimuli such as nearby ambient noise, the feel of your footwear when you’re sitting still, or the quiet movement of air, I suppose you can ignore it.