Re: randomized white noise = white noise?



Thanks for your very interesting posts Tom. I think I have found a
"target" so to speak, to focus my efforts on. This algorithm:

b0 = 0.99765 * b0 + white * 0.0990460;
b1 = 0.96300 * b1 + white * 0.2965164;
b2 = 0.57000 * b2 + white * 1.0526913;
tmp = b0 + b1 + b2 + white * 0.1848;

Takes white noise samples and outputs pink noise samples. If I can find
a way to perform it using the 400 or so instructions I have to work
with on the ATTINY13, I have a way to generate pink noise real time
using it! Maybe I can use a look up table or somehow do it so I dont
need floating point....hmm

I.e. if white is a signed byte, then I can make a lookup table for all
possible white * the coefficients. Then I can do the same for b0, b1,
and b2. But how will this affect the output? Not too well I imagine.

.



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