Guitarix team
2 Pedalboards using it

GxQuack

Plugin screenshot

Envelope controlled wah pedal with some extra features

Control Default Min Max
BYPASS 1 0 1
DEPTH 1.00 0.00 1.00
DRIVE 0 0 1
GAIN 0.00 -12.00 6.00
MODE 2 0 2
PEAK 5.00 -6.00 20.00
RANGE 1 0 1
TONE 0 0 2
http://guitarix.sourceforge.net/plugins/gx_quack_#_quack_ v.1:34.0-2