[LAD] Audio Levitation

Fons Adriaensen fons at linuxaudio.org
Sat Jan 4 00:19:42 UTC 2014

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.



A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)

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