Apparently, there's a noise that only people under 25 can hear. Music · News · Nifty · Parents · Politics · Quizzes · Rewind · Shopping · Style . working as well, making certain high frequencies hard or impossible to hear. No, I can't At 17,400 hertz, this sound is often used to drive teenagers away.
There are sound frequencies that only young people can hear. 17,400 Hz is the frequency only teenagers can hear! . employing these pitches as ringtones, so they can get calls that their parents and teachers can't hear.
Teens are effectively driven away, but many adults can't hear this sound at all! Things got even more interesting when some kids realized they.