By Alex Lasker
The original clip, shared by user @metzie72, shows a pair of speakers and a simple line of text reading, “Only people under the age of 25 can hear this sound.”
The video then plays what is said to be a 17,500-Hertz sound — have a listen to it below.
According to Decibel Hearing Services, a clinic located in Thousand Oaks, Calif., one of the most common types of hearing loss, called presbycusis, is known to make hearing high-frequency sounds difficult.
A click on the original TikTok sound reveals a wealth of videos showing parents and their children reacting differently to the noise. In most clips, the younger family member recoils at the high-pitched bleep, while the older relative appears unfazed.
It would make sense that the older you get, the less likely you are to hear as high of a pitch as 17,500 Hertz. In fact, the clinic claims that even 15,000 Hertz is difficult for anyone over the age of 40 to hear.
So, could you hear the noise?