3 ms·
And that assumes you have young ears. If you're older, chances are it's nowhere near 20kHz.
by simondotau 5y ago
And that assumes you have young ears. If you're older, chances are it's nowhere near 20kHz.
- marcan_42 5y agoAt normal listening levels, yup. I'm 30 and I can certainly hear the hideous 19 kHz anti-rat blasters they have all over shops in Tokyo (and I think they almost certainly cause ear damage and should be illegal - IIRC they are marketed as putting out 138dB SPL!) but I am rather unlikely to hear the difference between music low-passed at 19kHz and 20kHz.
- simondotau 5y ago> I am rather unlikely to hear the difference Especially if your hearing has been damaged by repeat exposure to 19 kHz at 138dB SPL.
- marcan_42 5y agoI do try to run away or cover my ears when I run into them...