No, I haven’t. Interesting?
Came across a YT on it at one time several years ago.
Some people could hear it, others not. When mentioned it to a relative, was asked if I could hear dog whistles, and sometimes, yes.
It is a very high-pitched frequency I have been hearing on and off since about 2013, at first only once in a while, and up to recently almost all of the time as a background noise. No, it is not tinnitus.
The only mention I can find of it now is as a “ghost” frequency of paranormals, and have no interest in listening to familiar spirits, thanks.
Hm. oops. 8744hz, sorry.
video: CAN YOU HEAR THIS
https://www.youtube.com/watch?v=kQXFw6JFbVQ&list=PLFpbBp3gKT9g_bTXTWRxzO0v3vTVScbNM&index=2