As you get older, the hearing process (sound waves travel into your ear, hit your eardrum, and vibrate three tiny bones, transmitting sound into the inner ear) stops working as well, making certain high frequencies hard or impossible to hear. Share On email Share On email Email. Share On copy Share On copy Copy Link. Jul 24, · Many people under 25 can hear up to the 14 kilohertz or 15 kilohertz tones. As you get older, though, it all starts sliding downhill. The good news is Author: John Donovan.
Jun 02, · Elephants can hear and make sounds well below human range, to as low as 14 to 16 hertz. They can also produce these infrasonic calls at extremely high volumes, around 85 to 95 decibels. Sound adults can't hear? It depends very much on the sound pressure level the sound makes at the ears. Adults can often not hear sine tones higher than 15 kilohertz.