Unlikely!

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In Reply to: Meased proof of musical information well above 20kHz! posted by Allen Wright on January 27, 2006 at 02:03:45:

Mixing and beating is a linear phenomenon. The ultrahigh frequencies will add nothing (consider Fourier theory). Heterodyne requires some non-liner device in the circuit, and the results can be very unpredictable if you don't design the non-linearity and its properties very carefully. What produces the heterodyning in live music? Maybe the bones in the skull? How does your equipment do the same thing? A careful read of the article to which you refer suggests that people cannot *hear* any difference between the high frequencies being present and not. We can't see ultraviolet or infrared light, but we definitely perceive it in other ways; that perception adds nothing to our vision. That EEGs may be different doesn't prove anythging about how something sounds.
However, it is interesting that there is sound produced by some instruments above 20 kHz, though I can't say it's surprising; it's very nice to have it demonstrated.
Joe

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Follow Ups Full Thread

Topic - Meased proof of musical information well above 20kHz! - Allen Wright 02:03:45 01/27/06 (7)

Andre Yew, who used to post here, was a former student of James Boyk - Jazz Inmate 22:10:44 01/27/06 (0)

Unlikely! - jsm 11:59:47 01/27/06 (0)

Allen, Thanks !! - Ray Kimber 08:10:55 01/27/06 (1)

Ray - My pleasure. Did you get my email... - Allen Wright 16:12:06 01/27/06 (0)

Re: Meased proof of musical information well above 20kHz! - porziob@aol.com 03:59:34 01/27/06 (2)

There is no proof of that - just read what I wrote. (nt) - Allen Wright 16:10:49 01/27/06 (0)

Re: Meased proof of musical information well above 20kHz! - fmak 10:15:41 01/27/06 (0)

Follow Ups

Unlikely! - jsm 11:59:47 01/27/06 (0)

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