By on May 24, 2006, with 243 Comments

Woow!!! This has to be the coolest audio illusion of all times! Apparently, using the Mosquito device, UK pupils have recorded the ultra-high sound that is audible only to under-20-year-olds. Your hearing gets progressively worse around the age of 20, so if you play a sound on the edge of your hearing spectrum, unless you have perfect hearing, you won’t be able to hear it at all. As I understood, the audio file is somewhere between 18KHz – 20KHz. When I played it, I haven’t heard anything, and thought it was just another internet hoax, but then my 14 year old brother started yelling at me, to lower that sound cause it’s driving him crazy – and he was in lower apartment!! Another thing.. my dog also flipped out! Here is the audio file. Check it out and report your findings!

This effect works best if you put on your head-phones. If the player below doesn’t work for you, download the Mosquito High Freq mp3.

1. Use your headphones if you don’t hear it the first time.
2. Test this mp3 file on your little brother, sister or a dog.
3. Be carefull not to drive someone crazy with this.
4. Test Your hearing here.

Comments

243 Responses
  1. EXILE- Who wishes she did have a webpage says:

    Quote:

    Gabriel

    on 6:00 PM
    I’m 25 and I hear it. Interesting, it sounds like the tv when my dad think it’s turned off but it really isn’t. He does it all the time and drives me mad. He is actually just turning off the decoder, so the tv is getting no signal, which it makes it looks like it’s off, except for that damn crickety sound!! I should be more forgiving, it’s not his fault that my dad is old and deaf…

    lol

    I’m 11.7, and so I don’t know about when I’m older yet, but my dad does the same thing! I can hear all three clips. I too, hear when the tv is on. Or old monitors. I wake up in the middle of the night just because of it, when I wouldn’t wake up if you dropped a book. It must have to do with that frequency… Also, my bro is 20, and he hears this. (Then again, he’s only been 20 for about a week…oh well.)

  2. Anonymous says:

    I am about to turn 10, and the first one doesn’t hurt at all. I have very good ears and eyes. Even nose! I havn’t done the others yet.

  3. eLyN x x x CaLL mE. . . says:

    um. . . the REAL cutoff is 30. so i dont really get why some ppl over it can hear it. oh well. lucky you. i’m 14 and the noise was always being played in my class at school! REALLY ANNOYING! but it was a passing fad and no-one plays it anymore (here in the UK.) x X x

  4. Luke says:

    That thing kills my ears i can hear it but i think i am going deaf becuase of it

  5. Me says:

    OMG this is so cool I’m 13 and I can hear it really really loud. the 1st one isn’t quite as loud as thee rest but man the third one is so awsome. My ears are still ringing.

  6. Red. says:

    Ohmigod my hearing is terrible.
    I’m 15. I only heard the first one.
    But on the others, my body responded to the sound (my ears hurt and my throat went weird) rather than my brain, so I think it’s only JUST out of my hearing range.

  7. Anonymous says:

    I am 23 years old and when I turned this on it hurt my ears sooooooo bad

  8. Anonymous says:

    im 13 and i hear all as a really loud. ive actually got the last 1 on my phone and i play wiht repeat on in class drives every1 nuts. they all like aaaaaaah my ears but the teachers hear nothing.

  9. Chris says:

    Rediculous, computer speakers dont go that high in KHz, my parants can hear every sound that i can cuz theres a cutoff , we hear high pitch noises to a certain extent, no wonder so many ppl hear it. unless you have extravagant speakers that go well beyond the human hearing range (a rediculous extravagance) no one should hear what they ‘intend’ you t hear.

  10. Anonymous says:

    im 11 and i heard it
    my 4 yr. old sister also heard it
    realy anoying by the way

  11. Anonymous says:

    My mother wich is 34 ear it Maybe some adult people can

  12. Anonymous says:

    I couldn’t hear #3 but it sure drove the dog crazy! And FYI, I’m 46. Guess it works. I’m gonna send it to both my daughters (21 & 25) and just ask them what they heard.

    Kissyfurr

  13. Nara says:

    I’m 14 and can hear all three. does that mean i have very good hearing?

  14. Anonymous says:

    I was able to here all dependingon where I was sitting in relation to my speakers for my pc. The first one had to be really loud for me to hear it but it is a really high pitched noise. It actually hurts my ears– all three sounds. And just so you know– I’m 27 years old and a female– I dont know if that makes a difference but I thought I would let you know.

  15. Mathew says:

    High Freq 2 mp3 file sounds like the sound inside my head when it’s really quiet around.

  16. Commander Stidd says:

    Well, I turn 44 a week from Saturday and I heard all three, but then again, I am paid to hear in the higher frequencies anyhow. I will say this however, it is not just dogs that go crazy over the sound. I have 2 grey tabby cats and both of them came running as soon as I started playing it.

  17. Bennett says:

    This doesn’t work…my dad could hear it perfectly and he’s over 50!

  18. Lugoffo says:

    it does work, my mom couldn’t hear it, but I could! same as we have an waterelement in our kitchen, when its turned on, its only me and my sisters who can hear it, and my mom refuses to turn that damn thing off…

  19. Anonymous says:

    I am 29 and I can hear all three…the last one I can actually feel in my head and face, very uncomfortable. Anyhow, interesting, thanks.

  20. Anonymous says:

    I thought that this was sooo cool… at first I did not hear it, but then I turned up the sound, and my heart jolted. It was sooo cool.

  21. Anonymous says:

    that is so weird i could hear this high squealing sound but its really quiet im 14 and my 3 year old sister kept covering her ears and telling me to turn it down

  22. Kia says:

    So I went to this site:

    http://www.jimmyr.com/blog/hearingloss.html

    He’s got multiple frequency sound samples with which to test your hearing.

    I’m a 35 year old female, and have always been able to hear the high frequency CRT monitors put out — can be maddening.

    So I tried the samples out on headphones and on separate speakers to see if it was because of the headphones or speakers, but someone explain this one to me:

    I can hear -all- of the frequencies up to 22,000hz; _however_, it’s harder for me to hear the 15,000hz to 19,000hz range.

    BUT, above that — 20,000hz, 21,000hz, and 22,000hz — I can hear far MORE easily than the 15,000hz to 19,000hz range.

    So I guess my hearing is diminished in the 15,000hz to 19,000hz range, but is MUCH better in the 20,000hz to 22,000hz range? Very odd.

    Also, on the sound files on this site, the mosquito one is harder to hear — I mainly just hear the people in the background but hear an occasional flutter of what might be the high-frequency sound, the rest are extremely easy to hear with no issues.

    What gives there? I would like to try above 22,000hz — that was easy shmeasy.

  23. Anonymous says:

    I’m 15 years old and i cant hear anything

  24. Anonymous says:

    I’m 28 and I could hear all of them. My mother, 50s, could not, but my brother who is 26 could not either. I never realized until now that everyone else doesn’t hear the noise from the TV.

  25. dollykins says:

    Im fourteen and i could hear them all perfectly

    my grandfather who is 52 couldn’t hear anything

    im glad im not the only one who knows when the t.v is on…i’d alwaus be able to do that and my friends thought it was freaky lol

  26. Anonymous says:

    I’m 27 and I heard them. the mosquito ringtone was easy to hear, the other two were at the edge of my hearing range and I had to get in really close to hear them. Before i actually identified the sounds i felt the change in pressure in my ears. I don’t know if it’s just me but I am extremely bothered by those high frequency pest repellents you can buy. someone up the street has one and every time i walk by it drives me up the wall.

  27. Xilentz says:

    I’m 13 and heard the first and second one very easily, but the I had to turn the sound up a bit on on the third.

  28. seanki says:

    COOL AMAZİNG! CREEPY! BUT GOOOOOOD!

  29. Nomis says:

    Hey when I saw this I thought wow thats cool, but I tried in on my parents who like way over…I’ll say 40 ;p and they heard it I’m 19 and heard it so yer…but it its like on the news lately bout some councils putting those alarm things up that only under 20′s can here must use a different wave thingy

  30. Bridget says:

    I’m 12 and I heard them all and they played them on the radio and Dad thought I was tricking him cause he couldn’t hear it and now my ears hurt.

  31. Big Daddy says:

    So, I’m 49 and I can here it, with or without headphones. Yes, I DO want a medal…

  32. Anonymous says:

    i cant hear it..
    i can hear the first one, the voices of the people at the bg..

    i guess its bcoz im listening 2 my ipod everyday on my way to school..
    i’ll tell this to my friends..
    (mahina ata pandinig ng pinoy)
    hehe..

    i just turned 20 last sept..

    geez..

  33. Darlene says:

    Well, at 54, could sorta hear something if I put my head close to the speakers, but after playing it three times, I’ve got a weird ache in my ears (which ring constantly anyway). Entertaining to try though.

  34. Anonymous says:

    it definitely sounds like a television buzz…or that sound you hear while near some serious electronics…I’m 30 and hear both clearly i guess everyone hearing degenerates differently electronic buzz used to keep me up as a kid

  35. x101 says:

    i thought u must be crazy to no be able to here the noise(of what might be coming from the wings that sounds like clashes) so i downloaded it and it no longer played clashes but a high feqence noice that on top of harming my ears i had my younger brother freaking out down stairs…my mom thought he was nuts!lol

  36. Anonymous says:

    i am 37.. i can perfectly hear it and it drives me crazy.. i used to hear the same annoying sound in my childhood all the time when TV was on (old tube televisions) and the first computers had the same sound effect.. your could torture me with this over time

  37. Mazz says:

    Woah! The mosquito gave me a pounding headache! Thanks :)

  38. random banana says:

    *Shudders* I HATE that noise. I’m under 20 and I can hear it but my Dad can’t. also when I played it my dog was walking and she just stopped dead when she heard it and started looking at the computer.

  39. turnitoff! says:

    i’m 27, play in a band, attend too many loud concerts but i can hear it at low volume without earphones. i started using earplugs only recently (which i would recommend to anybody!)

    i FEEL -20, maybe that’s the trick ;)

  40. Anonymous says:

    I only see the mosquito one, where can I find all the other ones people are talking about?

  41. confused says:

    I heard the mosquito noise, but so could my dad, who’s 52.

  42. Cygnus says:

    I’m 21 and I heard it. Yikes! Sounds like whenever a television goes on.

  43. Ryan West says:

    No one else in my family can hear this… I let my 6 year old sister listen and she couldn’t!

    I also can’t stand the sound TVs make. Sometimes I notice it and it drives me insane. Other times it doesn’t really bother me. People who can’t hear it are lucky! lol

  44. DaGni DoOms says:

    its like, not a sound but more of a ringing kind of feeling in your ears.

  45. Tim Duncan w/ T says:

    Annoying. Very annoying. When should I be not capable hearing that? I’m now 20.

  46. Anonymous says:

    OUCH! Me and my dog flip out! its hurts

  47. Jules says:

    OWWWW!!!
    I’m a 40 year old mail but crikey that hurt. Was stabbing to find the >stop< button.
    Phew

  48. Dax says:

    My brother and I can hear, and we are 20 and 28, but our parents don’t XD

  49. Meng says:

    My dad is 40 and he can hear it

  50. judas says:

    how do i download dis??

  51. abhienav mishra says:

    man..how can i hear it or download it.when i try save target option only a 300+ KB file is downloaded and that too is corrupt.
    when i click on ‘hear it’ i m directed to some other site.does somebody have an answer?

  52. Alexandra says:

    OMG thats soo cool I tested it on my moms bf and he couldnt hear it I am gonna test it on my mom when she gets home too

  53. I can hear the 30Hz at roughly 36dB. I can’t hear the 16kHz at all… I heard the 12kHz at 45dB. I can hear the mosquito MP3 thou really soft, it still hurts my ears… I’m 21, by the way…

  54. Anonymous A. says:

    i’m 11 and it hurts my ears!!! hm…at least i noe now i’m not imagining the high decibel sounds i hear and my dad just like ‘i don’t hear anything. u probaby watch too much tv or something’

  55. alexis says:

    owwwww!!!!

  56. maira says:

    incredible!!! I heard it, and my two female friends. we are 28…but our male friends (3 of them) didn’t hear! :) they are same age as we are! :)

  57. Joaozin says:

    Ouch… I tried in my brother and he punched me.. and dont get how is that a mosquito but nice one :)

  58. PaperMoon says:

    OMG!!! I heard that it hurt my ears eeewww! LOL

  59. frostclaw21 says:

    i agree with the tv thing ah! it drives me crazy!but no one else hear it the range thing soo cool i heard every thing but my mom who is 38 could not weird…

  60. luckyfireskull says:

    oh my goodness!!!! my ears are still ringing

  61. Hot Stuff says:

    Ouch! That’s not fair! You hurt my ears because I’m gullible and fall for anything because I’m 10!

  62. ChocoBunny says:

    im 11 my ears r BURNING!!! It’s horrible i started from the less loud thing OUCH!!! It still hurts…

  63. sarena says:

    it hurts!!!

  64. Mystique says:

    I love how everyone’s telling their ages, and their parent’s ages.

    Har har.

    Anywhoo, since I am hearing impaired and need the aide of hearing aids, I only have a ringing in my ears.

    Whatta bummer.

  65. Monty says:

    what a bunch of bullshit. I’m almost 40 and can hear this obnoxious squeal…horrible.

  66. Tann says:

    Im 42 and can hear it easyly

  67. dd says:

    hi, im 15 and i could hear all of them

  68. ali says:

    hi… i’m 32… and i’m hearing that.. it sounds like the tv is on somewhere in the house…

  69. nathanale says:

    i am so dumb, i tested the loudest/highest frequency one with the headphones up all the way and everything, i think i can still hear that ringing! plus my dog ran out of the room tryin to bite her ears off, and for some reason my mom couldn’t hear a thing, she said the thing was jumk and sounds didn’t come out right in the website or something

  70. Eva : D says:

    well, i’m 13 and i heard it pefectly, but then i showed it to my parents, and they thought i was tricking them, ’cause they couldn’t hear a thing. weeeeird!! : D

  71. Jade says:

    I played it with my speakers too high. That’s a really annoying noise. Ow…

    (I’m 15, by the way.)

  72. cool says:

    i’m fourteen, and i heard it, so i supposed my twenty five year old sister wouldn’t hear it, but she heard it :O hmm…

  73. Misfit says:

    heh another thing to reassure me that I am not getting old.

    I am able to hear it (I am 32), but my husband (30) could not!

  74. Paul says:

    I’m 40 and I can hear this plain as day. I guess I should be proud?

  75. Markii says:

    I’m 15, so I tried to heart it… but I was born partially deaf D: I guess thats why I probably didn’t hear it, even though all my speakers were on max.

  76. Lily says:

    My sister and I heard it perfectly and it’s pitch is TOO HIGH!!! I asked my grandma to hear it and she said “I don’t hear anything.” Wow!!! I love this illusion XD

  77. Dave says:

    I can hear it perfectly and so can my 55 year old father

  78. Izakk says:

    Haha I can hear it, my parents can’t

  79. nicholas says:

    At my blog Ill show you how you’ll never have to pay for another ring tone again! just follow this link! ringtonezzone.blogspot.com

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