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I hear it everywhere, its a beeping/buzzing sound that always beeps in the same rhythm (from what I've noticed). I've heard it from my cell phone, tv, amps and my computer speakers. I only started noticing this beeping sound in the last couple years. I know other people must heard it because I mentioned it to a couple people and they have heard it too.

I hear its from high powered radar or somthing like that.

I can also hear a radio station crossing over on my computer speakers sometimes, real low volume though.