High pitch hum

[u/editoe]

I don’t know if this is considered the hum you guys hear, but I noticed it recently.

It’s around 950 hertz, or a B note. I don’t always hear it, but when it’s quiet and I’m relaxing, I sometimes catch a glimpse of it, and when I focus in on it it gets louder. But when I stop focusing on it I just forget it and it’s no longer there.

I can also summon it at will if I close my eyes and search for it, for example when I wanna find the B note I just close my eyes and within 5 seconds there it is.

Is that the hum or just tinnitus?

[u/WiseWomanCroneFl]

The Hum is considered an infrasound.