Really?
At no time does it state its an official medical hearing test or replacement for said same!
NONE.
It is simply a demonstration showing how we all lose the ability to hear ultra high frequencies first as we grow older, because those fine hairs in the inner ear degrade first.
It can't be stopped regardless.
All ultra high frequencies we don't use anyway in our normal hearing range life.
As a kid I could hear the frequencies around the shoplifting devices near the doors of major stores in the 60's and 70's.
My parents never could hear it, but used to drive me nuts. Them too about me complaining about it.
I thought they had changed the systems when I got older, now I know I simply lost the ability to hear that ultra high frequency whine years ago.
SO, if some of you had actually WATCHED the video and HAD FUN with it, as it was intended, you would have learned something. :isadizzy:
Bah, I'm going to work.
Hear some of you sour pusses later.
At no time does it state its an official medical hearing test or replacement for said same!
NONE.
It is simply a demonstration showing how we all lose the ability to hear ultra high frequencies first as we grow older, because those fine hairs in the inner ear degrade first.
It can't be stopped regardless.
All ultra high frequencies we don't use anyway in our normal hearing range life.
As a kid I could hear the frequencies around the shoplifting devices near the doors of major stores in the 60's and 70's.
My parents never could hear it, but used to drive me nuts. Them too about me complaining about it.
I thought they had changed the systems when I got older, now I know I simply lost the ability to hear that ultra high frequency whine years ago.
SO, if some of you had actually WATCHED the video and HAD FUN with it, as it was intended, you would have learned something. :isadizzy:
Bah, I'm going to work.
Hear some of you sour pusses later.