Can Only People Under 40 Hear This Sound? - Truth or Fiction? - beep that only adults can hear

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NPR Choice page beep that only adults can hear


Apparently, there's a noise that only people under 25 can hear. Can you hear it?.

There are sound frequencies that only young people can hear. Find out how old your 17, Hz is the frequency only teenagers can hear!.

Teens are effectively driven away, but many adults can't hear this sound at all! why some listeners can hear it easily, whereas others perceive only silence. Extra: search online for samples other high-frequency sounds.