I feel so ashamed, I generated a series of tones and after 14kHz the tones start getting silent, by 14,5kHz I can barely detect the sound. And you're telling me people can hear 17kHz? I feel subhuman :(<br><br>Interestingly, Audacity's tone generator has a "sawtooth" pattern which I can hear as lower harmonics unlike actual sine wave, so your idea about a sawtooth is wrong ;)