Warbler, it wouldn't mean you are getting deaf. As we get older, the frequency range we can hear sort of moves down to lower frequencies. You are not losing anything, though, the highest note a piano can play is waaaay lower than the frequency I cannot hear.

Originally posted by: Yoda Is Your Father

Originally posted by: JarHead413
BTW, a TV on in a quiet room with no sound coming from it is unpleasent to me. People always ask my why I turn off TV's that aren't even playing anything and when I tell them they look act like 'm pretending to hear a noise.

I get that too. I can be in another part of the house and know that there is a TV on. It's like I can sense it or something. And I never leave my TV on standby - I always switch it 100% off.

I feel that but only on certain TV equipaments, and it gets more clear when a white image is showing. It is not irritating as that "mosquito" sound is, though.

So, based on what we've seen here, I'd say this invention is highly uneffective. People older than 20 can hear it. Perhaps that sound bit is a little bit too low, or maybe the computer sound equipament is not ideal for this, maybe it lowers a little bit the frequency. Also, some who might claim not to hear it might be due to equipament issues.

Later I'll try to make it a little bit higher, up to the point where I cannot hear it anymore, and see if everyone here younger than me can hear it.