Can You Hear This Sound That Only Young People Can Hear? Apparently, there's a noise that only people under 25 can hear. Can you hear it? Posted on March 02, 2015, 20:58 GMT Dave Stopera.
Mar 03, 2015 · Did you know that, as we age, we can no longer hear certain high-pitched noises as well as we did during our youth? There are sound frequencies that only Author: Laura Kenney.
May 23, 2013 · Curiously, noise-induced hearing loss usually makes it harder to hear lower frequencies, such as those between three kHz and six kHz, whereas presbycusis gradually erodes our ability to hear.
Download free mosquito ringtones, the ultrasonic ringtone also called Teen Buzz that adults can not hear. This special frequency tone is inaudible to those over the age of 30, now you can get calls and text messages in class without your teachers knowing it.