What do you hear other than tv n ac feed back plz

https://youtu.be/BUuI9NIkvf0

No clue. What are we trying to hear?

Sounds like some low fr . Like it’s like a wired morse code but I do know that sound reverberates and when it’s collides with each other it’s makes a pitch like a chirping noise . It is very ear piercing . Id suggest to look around and figure out what changed before you started becoming bothered by this .