hahahahahaha tryed this in the factory - hae machine here that when they start -horns and whistles go off -- i scored 55% - you can send my disability check to PO Box
38.9% in a dead quite house. Too many years working on F-4s and A-10s. I have tinnitus so bad, I hear multiple tones on many levels/pitches. Does come in handy when I want to tune out a conversation.