Repro:
1. Go to settings, Sound,
2. turn down all volume sliders except SFX.
3. Sit in the main menu or start a game. What is that sound? "EeeeeeEEEEeeeee"

Workaround: Turn down SFX. But impact is that now I can't hear any other SFX.

Desired result:
* Isolating this sound and letting users disable it.
* Or, only using it for a contextual event, and not the whole match.

Turn up your SFX and listen to the background. What is that? It sounds like a key is being made in one of those machines at a hardware store. It is a high pitch grindy noise. It has a shimmery fantasy sound to it, but it survives the entire match, survives the entire main menu.

It now has a nails-on-chalkboard thing for me after so much time hearing it.

A louder version of the noise shows up when someone is AFK.

It's in the "SFX" category, but maybe it should be in a different category? Maybe a checkbox for "Additional ambient sounds" to isolate it away from my normal game playing sounds?