Feature-complete spaghetti

Loads of things have come our way. Loads of things non-synth. And this took time, loads of time. But here it is, in all its glory: a more-or-less feature-complete model of the ST4:

Feature-complete model of the ST4 in spaghetti form.
Feature-complete model of the ST4 in spaghetti form.

Bolognese
Bolognese

There’s no display connected since it couldn’t possibly fit amidst all this wiring terror, but for the rest, everything just works:

  • All four voices multi-mode VCF action
  • All filters are fully hands-on controllable per voice
  • All four stereo voices VCA action including panning per voice
  • The three ADSR envelopes and two LFO’s are fully controllable
  • Sampling and bitcrushing, voice detuning, voice modes
  • Everything can be controlled by MIDI as well
Action shot of the expansion board.
Action shot of the expansion board.

Next steps are improving performance (loose wires give a bunch of crosstalk, it’s unholy), adding the display and just replacing all that breadboard with a decent PCB… and putting it all in some preliminary casing.