Greetings,

So I'm reading Miller's book hoping for a real world explanation of the elementary filter objects in Pd (z~, rpole~, czero~, etc).  Unfortunately, this only occupies 3-4 pages.

Does anyone have a set of tutorials, abstractions, or are their any documents available which go into further detail into these objects?  For starters, I'd like to build a few simple classic filter types (ie: lpf, hpf w/ recirculation).  lop~, hip~, and bp~ are nice, and one can build recirculating filters with these, but they don't offer audio-rate control of filter cutoff.

So, for an intermediate to advanced Pd user who would like know more about this real, what would you recommend?

Thanks,
~Brandon