19k, fine. 20k, nada. I guess I’m still young, then 
I think these devices are why I have trouble being around some stores in Ginza. I had no idea why they would have that awful sound around the entrances until I read an earlier thread on this board a couple of weeks ago. I have to plug my ears when I’m walking by these places. I hate the store owners for putting them there. I’m 32, my fiancee is 35 and she can hear it and is still annoyed by it, so it’s not just kids that they’re driving off.
I could hear all of the samples up to the frequency response of my earphones (24kHz), but they stopped being painful and edged into merely annoying between 20 and 21. That’s not surprising considering I can still hear things that I now realize some other people can’t. I’ve made the mistake of going to a few concerts without earplugs, but don’t otherwise abuse my hearing. I listen to music at lower volumes than most people, I think. Obviously, I’m very sensitive to noise pollution.
I used to have better hearing when I was a kid. I hated going into the electronics department because it actually hurt my ears. It’s still annoying but not as bad as it used to be. I still remember an incident when I was about five. My parents gave me weird looks when I asked what that clicking and squealing sound was that I could sometimes hear when the birds flew at night. They weren’t “birds.”
I could hear the 20,000 hz one with my laptop speakers, and it hurt terribly. I don’t usually abuse my hearing too much, I can list the number of concerts I have been to on one hand, and since Im in the dorms the music is never too loud.
My hearing has never been too bad, but sounds like the loud ringing coming from TV’s begins to give me a headache after having the tv on for too long.
I suspect there’s something wrong with this page, because :
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could hear both samples, despite not only being 40, but moreover, despite having an hearing loss in both high and low frequencies since birth. So, I shouldn’t have been able to hear them
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In the following samples, I could hear some, and not others, but seemingly randomly. For instance, I could hear the 25KHz sound, but not the 24 Khz nor the 10 Khz ones, which makes no sense.
36 and can hear both samples and up to 18000. I have tininitus too.
Up to 16000 - I’m 38. The 17000 one was perceived as an unpleasant feeling, rather than heard.
The lower ones were like being tortured on a bed of electric carving knives.
The exercise has left me with a nasty residue of tinnitus.
I’m 47 and heard all of them up to 14kHz but not 15kHz or beyond.
However, I’m a television engineer and have spent years in an environment with ambient TV line whistle (15.625 kHz in the UK) which completely knocks out this range of your hearing eventually. It’s a feature of the job.
*Really *old TV engineers have a second dip in their hearing at around 10kHz - the legacy of the old 405 line TV standard pre-1970’s or so.
I’m 18, and I heard up to 23k with median volume, 24 and 25 with the highest.