[unmasked_poker]

The digipotis were actually one of the hardest problems for this project. Additional to the many pot values and different tapers, you need to also cover a wide variety of voltages that can even be centered around zero (it is an audio signal after all), so you need to be able to handle negative voltage. DigiPots also have a capacitance, so when you have to replace high values like 1M-Ohm you will wind up with a low pass filter. We built a bunch of modules for common pot values and do the taper and uncommon values in software. If both sides of a poti are used, we will need to use two digipotis to simulate them.

[ericwood]

Super interesting, thanks for taking the time to chime in! I hadn't thought about the capacitance aspect. Was noise not as much of an issue as I've been led to believe?