[PD] Colored (fractal, 1/f^a) noise generator for PD

[Kyle Klipowicz]

Nice!  I always enjoy your creations, thanks for sharing them.

But is the algorithm only supposed to generate 1/2 of the hfa array?
I "doodled" in it, just to play with the convolution, and now the
agorithm is only writing to the first 512 locations of the array.  Is
it a bug?

~Kyle

On 8/19/06, alberto.zin at poste.it <alberto.zin at poste.it> wrote:
> Hi,
>
> attached is an abstraction for generation of "colored" noise
> (http://en.wikipedia.org/wiki/Colors_of_noise) using a
> relatively new method (by J.N. Kasdin, 1995) that uses
> frequency domain multiplication. White, pink, brown noise
> (and intermediate flavors) can be obtained by varying
> a single parameter (the slope of the spectrum in a linear
> log(PSD)-log(f) plot).
> I searched a bit in the archives and it seems to me that in
> for noise generation in PD we actually have noise~ (uniform
> white noise), pink~ (from zexy and cyclone) and a variety of
> filters, but no direct generation of 1/f^a noise (am I
> right?).
>
> Inside the archive there is a short readme, look at it
> first. To me the patch sounds a little "tubby", let me know
> if you have the same feeling.
>
> Any comment, suggestion for improvements is welcome.
>
> The abstraction lives in
> http://www.puredata.org/Members/AlbertoZ
>
> All the best,
>
> Alberto Zin
>
>
>
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>
>
>


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