When I was a kid, we had a Thrifty's that had this horrible high pitched tone. I couldn't stand to be in that store at all. Somewhere along the line, that high pitched squeal made it into my head. Both ears, 24/7. It's louder than anything else I hear. NOTHING is louder.
I've heard of people considering suicide over it. Me, it's there, and there's nothing I can do about it, so I just ignore it as best I can. There isn't a treatment I haven't tried, and I'm pretty much done trying.
In my case, there is only one solution, and that's death. At my death, the tinnitus will end.
At my age, death is getting much too close for comfort, and I'm not going to let some ringing in my ears cheat me out of life. Life is short, and I've got lots of bass to play.
My personal demon is at about 11 kHz.
Here you go… Enjoy!
11 khz - Google Search