On Mon, Dec 24, 2012 at 9:27 AM, Fons Adriaensen <fons@xxxxxxxxxxxxxx> wrote:
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.
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.
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