HoneyDripper with an expression pedal?

[pappasmurfsharem]

Is there a way to make the HoneyDripper controlled by an expression pedal? Basically like a wah withthe rotary acting like a Q knob. To get those cool vowel sounds

[stecykmi]

it may be possible but it's certainly not easy. the circuit uses some interesting envelope generators to create the vocal-like filter. it's definitely nothing as simple as swapping a resistor for a pot.

[Effectsiation]

http://www.diystompboxes.com/smfforum/index.php?topic=99045.0