Annoy-A-Teen
10/07/2009 Article Added: Podcast #110: Creating iPhone...
12/19/2008 New App Added to the App Store Get App
About
Have you ever wanted something that would simply drive your teen nuts? Well, here you go!
This app is very simple: it plays a high pitched tone every time you press the button that is very annoying to teens and inaudible to most adults! Now, this is not to say "all" adults cannot hear all of the sounds - those who can have exceptional hearing and have the envy of the author of this program, who can only hear three of the four tones this app makes.
Some businesses around the world play tones like this to drive away rowdy teenagers who scare away business.
Have fun!
Scientific Background:
An average healthy young person can hear sounds from 20 to 20,000 Hz (20 kHz). Sensitivity to sound varies with frequency: humans are most sensitive to sounds from 1 kHz to 4 kHz. Human sensitivity to higher frequencies deteriorates with age and exposure to harmful volume levels. Research indicates that the normal middle-aged adult can usually hear up to 12-14 kHz, while the elderly only hear up to 8 kHz. Women are typically more sensitive to higher frequencies than are men. For more information, google "human hearing range".
Annoy-A-Teen generates irritatingly high frequency sounds that most adults have lost their ability to hear, thereby targeting teenagers. It will also annoy adults who are fortunate enough to still have the hearing of a teenager.
Notes:
(1) iPod touch users without a built-in speaker: this program will only work if you plug in an external speaker.
(2) I made this app upside down because the speaker is at the bottom - this way, you can point the device at whomever you're trying to annoy!
(3) I've found a couple more annoying sounds and have changed the user interface a bit to incorporate suggestions by all of you. I'll be updating this app as soon as possible and posting it to the app store.
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10/07/2009 Article Added: Podcast #110: Creating iPhone Apps with Flash and More Mac Rumors
12/19/2008 New App Added to the App Store Get App
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