소리로 나이 테스트를

다음의 소리들 중에서 어느 주파수(frequency)까지 들리는지를 가지고..
'귀의 나이'를 측정해 보는 것이다.
나이가 들수록 고주파 (high frequency) 소리는 못듣는단다.
출처 : http://www.ultrasonic-ringtones.com/

• 8 kHz
  
  1. 8000.mp3
  
  
  You're really getting on a bit
  You are either old or have really messed up your hearing by turning your amp up to 11 and listening to Spinal Tap. Or both.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 8kHz
  
  
• 10 kHz
  
  
  1. 10000.mp3
  You can't remember my teens
  But you can just about hear some of these tones that those youngsters are on about so you're feeling moderately smug.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 10kHz
  
  
• 12 kHz
  
  1. 12000.mp3
  
  
  You're in a mid life crisis
  Your ears aren't what they once were and you have resorted to doing online hearing tests.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 12kHz
  
  
• 14.1 kHz
  

  1. 14080.mp3

  
  

  You're not a hoopy frood

  You thought you were really with it and in with your younger colleagues but they just laugh at you because you can't hear beyond this!
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 14.1kHz
  
  
• 14.9 kHz
  
  

  1. 14918.mp3

  
  

  You are a thirtysomething

  You're a little frustrated that you can't hear all the tones that the young 'uns can but will be more than happy if it means you don't have to listen to their damn ringtones on the bus anymore.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 14.9kHz
  
  
• 15.8 kHz
  

  1. 15805.mp3

  
  

  You are in your twenties

  You can still hear reasonably well and you can play this without my old fart colleagues hearing it which makes you feel kinda good.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 15.8kHz
  
  
• 16.7 kHz
  

  1. 16746.mp3

  
  

  You are about 20 years old

  The teen repellent will no longer foil you, but you can still hear some pretty high tones.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 16.7kHz
  
  
• 17.7 kHz
  
  1. 17742.mp3
  
  
  You are the typical teenager
  You can hear the frequency of the mosquito teen repellent - but probably not for much longer!
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 17.7kHz
  
  
• 18.8 kHz
  
  1. 18798.mp3
  
  
  You are an easily repelled teenager
  The mosquito device was made for the likes of you. You are probably begging to make the noise stop!
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 18.8kHz
  
  
• 19.9 kHz
  
  1. 19916.mp3
  
  
  You aren't even a teenager yet!
  Your hearing rules! You're either quite young or you've looked after your ears.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 19.9kHz
  
  
• 21.1 kHz
  
  1. 21101.mp3
  
  
  You are a dog
  Or maybe you are a mosquito, you certainly can't be human.
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 21.1kHz
  
  
• 22.4 kHz
  
  1. 22357.mp3
  
  
  You are a liar
  You claimed to be able to hear a tone that contained absolutely no sound!
  
  The highest pitched ultrasonic mosquito ringtone that I can hear is 22.4kHz