This may be operator error…
Was getting frustrated trying to get all 8 voices to be perfectly in tune, before detuning to taste.
On evil impulse, I turned off the power while the calibration was in process.
It is as if Parva has lost a reference?
I have since run both filter and DCO calibration repeagtedly.
However, when I (after allowing 30 minutes warm up) hit the same note on the MIDI keyboard, you can hear the voice cards cycling and the pitch vary unacceptably!
Anyone else have issues with the calibration process?
Any suggestions to try?