when I listen to it a few times repeating I can hear a little buzz. Some creeping noise to your brains. It's not constantly. You may not focus on it, then you won't hear it.
I have it on for about 5 minutes now and it's really cracking my brains. It's hell. It's like it's getting louder and louder. Every time it start over again it's seems to be louder.

Now I've turned my volume completely open and it's prettu clear right now. It's a continuing buzz. When it's this loud, everyone can hear it. Will shut it off now.
I'm 20 years old.