29 Jan
2005
29 Jan
'05
8:51 p.m.
On Sat, Jan 29, 2005 at 01:01:31PM -0600, Jan Depner wrote:
Of course they are. Please re-read. You are given 'fractal' noise
and _filtered_ 'normal' noise having the same spectrum. Can you
tell them apart ?
Referring to the web site you mentioned earlier: Brownian
motion corresponds to 'brown' (1 / f^2) noise - a strange
coincidence that the two names match. Another example from
physics is the Poynting vector of an EM wave, which indeed
is pointing in the direction the wave is going :-)
--
FA
... I said fractal noise sounds more natural.
In some cases, yes, because it happens to have the right
spectrum, not because it is fractal.
- If I gave
you two series of samples, one generated with
the fractal method, and one generated by sending white
Gaussian noise through a suitable filter, you would have
no way to tell which is which. And that means there is
nothing special about the fractal noise, apart from the
fact that is was generated by an interesting algo :-)
I disagree. White noise and pink noise are very different.