[PD] OT: faster than Fourier transform
matju at artengine.ca
Wed Jan 25 23:25:43 CET 2012
Le 2012-01-25 à 16:16:00, Charles Henry a écrit :
> I've wondered about that too-from a perceptual point of view. There's
> not much differentiation among noise signals. They all mostly sound the
Well, the brain still has to extract enough info from them to have a
general idea of what kind of noise it is (a rough shape of spectrum), and
ESPECIALLY extract the non-noise portions of the spectrum.
> Even though there's a very large number of dimensions for variation,
> they must have a sparse representation somewhere (in the brains...
> but the FFT? no way...
Well, there are perceptual models that try to separate «noise» from
«non-noise» for easier encoding and stuff...
| Mathieu BOUCHARD ----- téléphone : +1.514.383.3801 ----- Montréal, QC
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