Apparently, there's a noise that only people under 25 can hear. Mar 03, 2015 · 17,400 Hz is the frequency only teenagers can hear! Most people over 18 should not be able to detect this sound. Some major retailers actually use this science to keep teens Author: Laura Kenney.
Jun 02, 2015 · Sounds for young people. As humans age, their hearing changes. Age-related hearing loss, called presbycusis, means that older people can’t hear some high-pitched sounds they would have heard in their youth. Most people over the age of 18 cannot hear the 17,400 hertz tone in . Feb 24, 2012 · That high-pitched noise that most adults can't hear Most people over 30 shouldn't be able to hear it But it really kills your ears if you can! xD I'm way under 30 and I can hear it .
While many teenagers can hear sounds in the 16 kilohertz range or higher, most adults past the age of 25 cannot. For this reason, 17-kilohertz ring tones are popular among high school students who want to receive messages on their cell phones during classes where cell phones are forbidden. Keep Learning.