Ringtone Adults Can't Hear.

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toggleswitch2

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Apologies if this has been posted previously. My niece tried this on me..........and I'm deaf as a door-knob.

Her momma however can hear it.

Don't think this is not used against teenagers as well....

This ringtone is played in certain outdoor areas. Since the kiddies CAN hear it they no longer congregate (read: hang-out) in those areas.

 
I can't hear it, although a colleague of mine can. I have used a bat detector to make it audible for me.
 
Cranking my stereo and using headphones, everything to 15kHz was audible. I couldn't hear the 16 and 17kHz tones, but then I could hear 17.4-21kHz. Weird.
 
Thanks for posting Steve! Could hear through 18khz, but feel the 19khz but not clearly make it out.

I'm just shy of 28 for reference. Quite a few times I can hear CRT's giving off a high pitched sound, but no one else hears it.

Ben
 
I can only hear the "Everyone" and the 10Khz, 12Khz sound. On the other sounds I can hear the "click" of the tone beginning to play, but can't hear the actual tone. And I'm 58.

I have 3 of our dogs in the room with me while I am on the computer. When I play ANY of the tones, including the 22Khz tone, their ears go up and they look in the direction of the computer. I don't hear a thing.
 
I can hear it

at 30cm distance to the laptop, but not at 1 meter.

That's at normal volume. I don't think I'd hear it if I weren't in a very quiet room and knew to be listening for it.

I don't place much value on these computer tests. Did one a few weeks ago that said my hearing was fine.

But I know from a proper test two years ago that my hearing is down nearly 20% in my left ear, tho' my HNO was totally surprised that a man my age would still hear above 15,000Hz...

Don't the thinner hairs which resonate at the higher frequencies fail first?
 
I once took a music course at university and the instructor said there was a famous old church organ builder whose hearing was so acute he could walk into a church, bang his cane on the floor, and decide how a new organ should be designed to take full advantage of the acoustics.

I used to pride myself on my high pitched hearing... with a definite ability to detect the "presence" of a good vinyl recording... but at 57 it seems to have gone away... mixed blessing... Plus currently my left ear has been plugged up (late winter flu) for about a week now so my hearing is monaural only. Suddenly though my car has gotten a lot quieter...

In any case, I can hear the 10 Hz, and sense the 12 Hz. And like others I can hear the 19, 20, etc..., but I think those are harmonic low tones and not really reflective of the really high pitched sounds one can or cannot hear. It's also fun to click on several of the high pitched tones at once. You'll often hear a much lower harmonic which I would think might give away a kid's cell phone if someone else's phone is ringing at the same time at a different high frequency... lol...
 
I could hear the 12. Our cats must of been able to hear some of them they "perked up" when i was trying Togs link. Suds, the man and the cane with the acoustics brought to mind, the place in, is it? Grand Central Station in New York, where you can whisper in a specific spot, and it's known you can hear the whisper on the opposite side of the building in a specific location, even over the roar of the crowd. OTOH, the Superdome in NOLA has acoustics that were difficult to overcome with 1970's technology, it is somewhat better now. Of course it was never an issue with the "Rolling Stones" :-)
 
tried the downloads too-could hear up to 14Khz-beleive the limitation is more of the computer and the speakers connected to it.Would be interesting to run these tones thru my Hi-Fi and listen-probably could hear them better.also I wonder if the speakers in cell phones can really reproduce these tones loud enough for someone to hear-the speakers in cellphones certainly are not the best in quality.
 
I'm good to 14KHZ. Above that, nothing. I'm 62

That's pretty darn good range for 62!

I can easily detect up to and including 18K at low volume, but had to increase a little amplitude to detect 19K and 20K. Can't detect 21K and up, even at very high volume (got a shitty look from my dogs on that attempt).
 
Don't be fooled by acoustic artifacts

If you can hear up to a certain level, then nothing, and then start hearing again, then you are hearing not the high tones but harmonics which probably are created by your computer's flakey sound board circuitry.

Especially if the higher frequency tones seem to be lower in pitch than the lower frequency tones!
 

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