It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by john_bmth
Originally posted by ANOK
This is BS, most people don't loose that much high end hearing due to age.
I am 42 and I had no trouble hearing that tone, and I have lost hearing from my military days (loud jets everyday), and playing guitar in loud bands...
I think ur missing the point somewhat... this isn't abut hearing loss as in 'hard of hearing', but the natural tendancy to loose hearing in the upper frequency spectrum as time goes by. 20khz down to 16khz or 12khz sounds like a lot, but it isn't. 10khz is around d#9... thats pretty high! The next octave up (d#10) is 20khz, and that VERy high
Here is the octave of d#9 to d#10... as I said, this is from around 10khz tp 20khz, and fair play if u can hear every not in the octave, but I'm in my early 20s and already the last few notes are beyond my hearing threshold heh
Children have little problem hearing all the way up to 20khz... but it isn't a pleasant sensation, its very annpying and borderline painful, so I can see it as being quote an effective deterrent :p