Frank Barknecht wrote:
I think, it may also be possible to implement it as a pure Pd abstraction with some stacked [rpole~]s and fine tuning, as from a quick look it seems to be just a bunch of first order filters with tanh()-distorted filter coefficients. But quick looks may be deceiving ...
You have been deceived, the filter has the tanh()s inside the recursive loops, so it's not a linear filter.
Claude