Modulation options

#1

Hi All,
Inspired by the Matrixbrute I've decided to stick a tiny mod matrix onto my hardware synth using a Adafruit Trellis and Teensy. I'm familiar with normal subtractive synthesis but I'm stuck to find a 4th modulation option. Here's my mod matrix so far.

| *      | LFO | LFO2 | ENV |
| Pitch  |     |      |     |
| PWM    |     |      |     |
| LFO1   |     |      |     |
| Filter |     |      |     |

So I have 2 lfo's and an env. Is there something else more interesting I can stick in there?

#2

As mod sources:
Velocity
Aftertouch
Any exotic sensor, like sharp ir distance sensor.
Or do you mean something else?

#3

Another env? Random?

#4

Yeah, just thought while out and about a random thing would be awesome. I'm also short of targets as I've missed off the VCA. So something like this;

| *      | LFO | LFO2 | ENV | Random
| Pitch  |     |      |     |
| PWM    |     |      |     |
| Vol   |     |      |     |
| Filter |     |      |     |

Hmm, saying that being able to LFO an LFO would be good and I could fake Vol modulation with the filter.

#5

Pitch is a good modulation source.

#6

Steady. I'll looking at a 8x8 grid of trellises (Trelli?) at this rate. :smile:

Been playing with rand/uniform. Took a bit of fiddling but I have a nice random mod source now. I need to wind back and do a count of pots I need. I'm sure I'm over and will end up using teensy knobs as well. Tsk. Scope creep!