Does this test actually mean anything? I'm 32 and I can still hear the 21.1 kHz audio sample provided. Isn't that supposed to be impossible at this age?
Here's the test: https://www.ultrasonic-ringtones.com/
19.9 kHz is still clear to me, but distant.
21.1 kHz sounds like a higher-pitched version of the sound you hear when you open the fridge but very, very, very faint.
I wonder if this test means anything or if the audio's faulty. I was under the impression I shouldn't be able to hear these.
How about you? If you try this page's test, how far could you hear?