This is what the Havana Syndrome sound is like...

Certainly sounds familiar to the noise I've been hearing since 2020, just nowhere near as intense.
https://twitter.com/60Minutes/status/1495560469884686338?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1495560469884686338%7Ctwgr%5E%7Ctwcon%5Es1_c10&ref_url=https%3A%2F%2Fwww.yahoo.com%2Fnews%2F60-minutes-releases-eerie-havana-040222001.html