I just released a new DIY project - The Sentient Machine. It's a modulated resonant lowpass filter with two "voices", standard wah sound and a special vowel sound (formant filter).
At slow speeds it makes a pretty cool phaser'ish sweeping sound aswell.
Freppo - awesome work here buddy! That sounds GREAT, and I love the range of sounds you control with just two knobs and a switch. Any tips on adding a manual mode to this? I'm imagining that formant filter with expression control would be super fun