On Sat, Jan 29, 2005 at 01:01:31PM -0600, Jan Depner wrote: > ... 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. 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
