Hi
I've made a new LV2 plug available called GxQuack.
It's a kind of Auto Wah with some additional controls inspired by the
Mu-Tron
https://en.wikipedia.org/wiki/Mu-Tron
here is a sound example of GxQuack in action:
http://vocaroo.com/i/s0o2rGhCBrjQ
here you can get the source, build instructions and screeny
https://github.com/brummer10/GxQuack.lv2
regards
hermann