It would be useful to have a standard way of calibrating CV input and saving to EEPROM, for 1V/octave responses.
There are two aspects of this:
- Gain and offset error from the CV input op-amp (likely very linear. Differs from unit to unit, but can be calibrated and saved to EEPROM)
- RP2040 ADC error (highly nonlinear, but can be partly corrected in software. I am not sure how much this varies between different units)
It would be useful to have a standard way of calibrating CV input and saving to EEPROM, for 1V/octave responses.
There are two aspects of this: