This is the most useful link I’ve found as it sweeps the entire frequency range not just set points, and tells you the precise point at a which you lose the tone audibility. I lost it right at 12,000 kHz.
I’m 49 and couldn’t hear a damn thing. I’ve had a lot of things go boom near me over the years.
Weird. When I listened continuously it went very quiet at about 8,000kHZ, then surged briefly again at 10,000 kHz where it went dead. If I pause/play it in short blips, I can clearly detect 13,100 kHz. (45, male, lots of irresponsible teenage noise exposure).
I’m 37 and I can hear it. I also have tinnitus and some hearing problems. I guess high pitched noises are not one of those problems.
Interesting it’s continuous all the way through for me. You’ve apparently got frequency notches in your hearing. They say this can happen if you are in an environment where those tones are always present. I’ve heard this can be a problem for those who work with electrical equipment or industrial environments.
It seems as if there are at least 2 cats who run when it is played*.
Did not hear, but I have been diagnosed with serious hearing loss in mid to high frequencies.
They really should include a “normal” tone which plays using the same technology as the “teen bait” sound.
I have a neighbor who likes to have barking dogs. I have been paying serious money for ultrasonic bark-stoppers.
Can anyone determine of this sound bothers dogs? Hopefully, chihuahuas especially 
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- I notice that the mid-priced unit (PetSafe Guardian) annoys the cat no end.
The higher priced units (Good Life) do not bother her.
- I notice that the mid-priced unit (PetSafe Guardian) annoys the cat no end.
It sounds like what I imagine tinnitus sounds like. I could only listen to it for a few seconds before I had to turn it off because it started to physically hurt.
Nothing there for me, and indifference from Cat.
At first I was thinking “nop… ¡aaaay! ¡¡leche!!” it seems to build up, I stopped it before it got painful but it could have been.
A few years ago I went to get my hearing checked because I was having problems understanding some of my guildies over Skype or Teamspeak. The diagnosis was “if everybody had hearing like yours, I’d sell glasses” and the problem, bad microphones on their part. Later checks haven’t been so brutally positive but still good.
I’m 48 and like listening to music at levels so low that other people think my neighbors have it too loud. Uh, no, want me to raise the volume?
It sound like the whine that was sometimes produced by the old (non digital)television whe had when I was kid.
I turned it up and got really close and was actually able to hear it.
Same effect here; lose it somewhere round 9,000kHz, it reappears around 12,000kHz then sort of goes again, except I can tell if it’s on or not. I have occasional tinnitus though, and it’s pretty bad today, so it may just be drowning out the higher end.
I hate those teenage repellent things; for a start, what about toddlers? Parents can’t always hear it, but the poor little sod stuck in a pushchair can. I know they’re only supposed to be used when teenagers are there causing issues, but I used to live round the corner from a shop that had it on permanently.
Anecdote alert:
My college students were laughing about this tone, and one had installed it as a ringtone. He thought it was hilarious that I couldn’t hear it.
So ALL the students downloaded it and I encouraged them to play it at the same time.
It was like some bad sci-fi TV show where the aliens are holding their ears and whining “No! Make it STOOOOOOOOP!” And the one human in the room is calmly working away, saying “I don’t know what you’re complaining about… I can’t hear a thing.” And smiling.
45 in November, heard it loud and clear. Wow, that was horrible.
The thing is I find this interesting because I’ve become convinced SOMETHING is wrong with my hearing. I have struggled to understand what people are saying at times. So I went and had my hearing tested and they said it was fine. I was amazed.
I’ve seen other tests like this that actually “worked” in the sense that I could not hear them but kids can. I played one and heard absolutely nothing, and my kid yelled from the next room “Daaaad, what’s that horrible noise?” Maybe this one is just the wrong frequency.
But now reading the other posts a lot of you can’t hear it, I dunno. Maybe I’m good at hearing high frequencies?
On the Youtube example I heard nothing until maybe 95-100 Hz, and heard it fine until 15,500-16000, at which point the signal vanished. Humans are supposed to be able to hea as low as 20Hz, so maybe that explains the problems I do have. Is that bad?
I dunno. Lawn mowers, M-16s, and Morris Day on the Walkman. Pretty standard stuff for a kid in the 80’s.
32 and OW! :mad:
That is pure evil, I love it =)
I hear it just fine. Mentioned it before but I did guinea pigging for profit for the US Navy listening for tones embedded in pink, white and brown noise back in the 90s in my late 30s. I have incredible hearing - I hear it just fine but as I spent time as a machinist, I can ignore pretty much any sound at need so I wouldn’t say it drives me nuts. What I hate as a sound is that tone that Mohegan Sun plays in the background to mask the casino noise … no idea what the issue is, it just really gets on my nerves. As an industrial worker, and occasional musician I always wore hearing protection at work and to concerts, I just plain find noise that is too loud bothersome not because of the noise per se, but because I can hear just fine with the amps turned down to like 5 instead of 11 … I like my background music to be just that, background. I can drive people nuts because I will have my music on at what I consider a nice low background and can be singing along and the people in the room with me can’t really hear the music at all. shrug I am also the one asshole that can sit next to a ringing phone and not answer it because I don’t feel like answering it. [I have issues with the idea that a phone HAS to be answered just because it is ringing. It exists for my convenience =) ]
It is pseudoscience there is no such device. And just every thing about that page screams science fiction or out popular magazine crystal ball predictions.
I don’t think the speakers on this cheap laptop are up to the task, but if the frequencies other people have been mentioning are right, I can hear it easily. 35, been trying valiantly to damage my hearing for years with irresponsible rock music, but it hasn’t worked yet. I find cell phone compressed audio difficult to understand, and if I have to talk on one I have to guess at about 50% of the conversation, but MP3s don’t bother me. I am fussy about my audio gear but not snooty; $10 earbuds are fine as long as they have decent response for at least 20Hz-20kHz, ideally 18Hz-22kHz. Clipping drives me bonkers.
Anecdotally, I have pet rats and I can hear most, but not all, of their feeping. (Rat communication ranges from easily audible to ultrasonic. The loud screechy squeaking humans can hear easily is basically indignant swearing. “HEY what’s the big idea? KNOCK IT OFF” during a spat, and the like.) A lot of it is up around CRT horizontal deflection whine, which I can also hear. I accidentally taught one of the little boogers which things I can and cannot hear the other day, in fact – the house was quiet and he started emitting a fweeeee, fweeee noise up in their usual distress-frequency range, but without a panicked tone. I went over to investigate and discovered that the only thing wrong with the rat was that I was not petting him right that very moment. 
44 and can only hear it if I crank the volume way up. So, no.