Re: [LAU] Pro Audio? OT rant.

On Mon, Dec 24, 2012 at 9:27 AM, Fons Adriaensen <fons(a)linuxaudio.org> wrote: Violins (and many other instruments) can and do produce harmonics above 20 kHz. As long as these are vibrations inside the instrument they could even interact in non-linear ways and produce something that is audible. Once they are 'in the air', they don't interact and you can't hear them. although i'm skeptical, i'm willing to leave a tiny amount of doubt in the air. i think the evidence is clear that we cannot hear these frequencies. there is some slightly woo-ish stuff about how they might still interact with us physically and contribute something to the experience of being "in the presence of" the live instrument(s). i suspect its totally bogus, but i also don't think that the science has been done to clearly establish that it is, and that 22kHz is a hard limit for human experience, not just human hearing.