Going a little off-topic I think, but I couldn't resist to notice
following:
quoted 2 lines The human hearing range is not restricted to between 20hz -20khz. Everyone> The human hearing range is not restricted to between 20hz -20khz. Everyone
> has a different hearing range
Correct..
quoted 2 lines Can you hear a faint very high frequency sound when watching the TV? Many> Can you hear a faint very high frequency sound when watching the TV? Many
> people can but is supposed to be above the human hearing range.
The frequency you're talking about is the line-frequency (horizontal) of
the TV, and that's 15.625 kc so that's why most people can hear it. But
because it's very weak, it's not irritating. I can always hear if there's a
TV switched on when entering someones home :-)
Cya!
Timo
___ timoh@ultraworld.xs4all.nl ____| We have not scratched the surface |____
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