for the record: no. the built-in norns reverb uses the zita-rev1 algorithm by Fons Adriaensen. this is an FDN with 8 lines, both damping and allpass filters in the feedback matrix, a pre-delay stage, and an output EQ stage (which IIRC we tweaked a little in the norns version.) i happen to think the tap distribution that Adriaensen came up with, sounds nicer than any others iāve tried in similar delay structures. but it is still a pretty straightforward example of āFDN sound.ā
this is only vaguely related to miller pucketteās rev1~ abstraction from vanilla pd. (or rev2~ or rev3~ for that matter.)
hereās the source⦠in a nutshell, it is JPVerb (a modulated FDN), in series with a granular pitch shift, some filters, DC blocking and saturation. as you can see itās just a few lines of supercollider. highly encourage experimenting with this powerful sound design platform.
ok, guess iāll leave this up even though you edited your question.