Why can't I hear 20,000 Hz?
I'm trying to understand why I can't hear sounds at 20,000 Hz. I know human hearing range is limited, but I want to know the specific reasons behind my inability to perceive such high frequencies.
How many people can hear ultrasonic?
I want to know how many people are able to hear ultrasonic sounds. I'm curious if it's a rare ability or if most people can detect these high-frequency sounds.