[LAD] Audio Levitation

[Fons Adriaensen]

On Fri, Jan 03, 2014 at 05:01:33PM -0600, Charles Z Henry wrote:

> The peak pressure difference occurs where the volume velocity is zero.
> The location of the peak spatial derivative of pressure coincides with the
> location of peak volume velocity.

I don't think acoustic levitation can be explained as long as 
linearity is assumed - because in that case there can't be any
constant term in the forces that he acoustic waves generate.
So what's going on here is probably a lot more complex than
we imagine, and the way it's 'explained' in the video is 
completely bogus.

Ciao,

-- 
FA

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