ar noise xamp, kbeta
A white noise generator with an IIR lowpass filter.
xamp – amplitude of final output
kbeta – beta of the lowpass filter. Should be in the range of 0 to 1.
The filter equation is:
y_n = sqrt(1-beta^2) * x_n + beta Y_(n-1)
where x_n is white noise.
University of Bath, Codemist. Ltd.
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