@solipp The first link returns an empty pdf...

But thanks a lot anyway. http://www.willpirkle.com/Downloads/ has a lot of useful stuff. Never knew about TPT filters. Also, I have added your audiolab abstractions to my library long time ago and learn a lot from going through the patches seeing how stuff is done- but the content is massive so I haven't sifted through even 10% yet

A question: in 4plop above, there's 1 - coefficient done separately four times. Couldn't this be optimized by doing [*~ -1] --> [+ 1] only once and feeding that result into the 4 rpoles? Bc it looks to me like they all get the same signal input.

hjh

@ddw_music said:

A question: in 4plop above, there's 1 - coefficient done separately four times. Couldn't this be optimized by doing [*~ -1] --> [+ 1] only once and feeding that result into the 4 rpoles? Bc it looks to me like they all get the same signal input.

True! Nice catch

Fixed version 4plop~.pd

with some other minor improvements as well: Resonance/cutoff compensation and anaclip are back in the mix

Here are all available Pure Data Filters collected as automatonism modules in action:

In your Boca Ladder abstraction i mixed the normal tanh with the analog clipper,which in my opinion gives the best results. If in exp~ the quotient is ==5 , only analog clipping is used via switch. if both mixed are together the sounds gets some superb irregular resonances. the bite parameter in the module amplifies the resonance:

i also spent a oversampling switcher for 2/4 *oversampling, where with 4 OS the snapping of modulation sources sounds greater
imho.

Here is the test-file
Battle of the filters Vol.zip