3 ms·
At 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
by marcan_42 5y ago
At 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...