Pseudo UGen extension Rookie

1

This noise is extremely nice and I would like to use it as a Ugen. I believe I have to copy this page into Extensions, but what else? Thanks.

(
// probably more useful as a pseudo-ugen
FractalNoise {

   *ar { arg beta = 0, mul = 1, add = 0;
      var n = 6, h = 2, fp = 50, t = SampleDur.ir, norm = exp(beta).reciprocal**1.72, sig = WhiteNoise.ar(mul,add);

      n do: {
         var fo = 10**(0.5*beta*h.reciprocal)*fp;
         sig = FOS.ar(sig,1,exp(-2pi*fo*t).neg,exp(-2pi*fp*t));
         fp = 10**h.reciprocal*fp
      };

      ^(norm*sig)
   }

}

)
2

I don’t know your reference and haven’t dived into the concrete math here, but when implementing something with cascading filters I’d

.) take as many params (that you have hard-coded atm) as args
.) take an in arg instead of hardcoding WhiteNoise into it
.) also take n as an arg, this of course wouldn’t be modulatable as the ugen graph is fixed

Besides I personally find pseudo ugens of such kind very practical.
After storing in the Extensions folder (xy.sc) and recompiling it should work.