Ultrasonic Wars Between Kids and Adults
October 23rd, 2006
Posted by
Travoli in
General Comments
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Had your hearing checked recently? It’s about time. Go to the ultrasonic ringtones website and see how high you can hear. This all started with the Mosquito kid repellant project. Basically, humans lose some high-end frequency hearing as they age. Compound Security Systems decided to build an ultrasonic kid repellant based on that science. Now old folks can keep neighborhood kids off their lawn for good.
Enter genius thinking and ultrasonic ringtones are born. Same technology, but in reverse. Adults aren’t going to be able to hear kids’ phones ring. The highest I could hear was 14.9kHz. Their test results said I’m a 30 something. I’m suprised it’s not worse considering my previous lawncare career and car stereo habits. Warning: Sounds May Cause Headaches! |
