All parameters are audio rate modulatable. There is a 5x5 example matrix included with a basic sound source to be able to test the mixer: function-matrix~.pd
Download Pure Data here: http://puredata.info/downloads/pure-data
Inspiration and original analogue hardware design "Pluck and Duck" by NoizeHardware / Minijack: https://www.youtube.com/watch?v=Vy0PYuuFQw4
I hope this to be turned into an analog hardware soon!