Shoutbox

I found that i can here when computer monitors and TV are turned on or off by a particular frequency they put out.  I also remember my brother playing some game on the PS2 and they had the choice of 50Hz or 60Hz for the graphics and i could hear a difference in the pitch of the TV when he was testing between the two (the 60Hz was a higher pitch and also louder i think), funny thing is that he is younger and couldnt hear it so I dont think it relates directly to age, it depends more on how much loud noise a person has heard in there life and the damage that as been caused to their hearing.