Although the above posts mention LFO coarse should be set to 440 Hz, I’ve had better results with it set to 0 Hz - both with pitch over CV and MIDI. Software build 23072019. Same steps to reproduce.
LFO Coarse set to 440 Hz: Middle C and the octave above sound at 1479 Hz and 2519 Hz respectively; neither of those notes are a C, nor are those frequencies an octave apart.
LFO Coarse set to 0 Hz: Middle C and the octave above sound at 1039 Hz and 2078 Hz respectively; This is an octave, and both notes are C’s, so at least pitch is tracking, but the octaves are wrong. Middle C should be ~262 Hz, which is 2 octaves lower than what’s being produced… If I offset the CV input, I can set the signal to the proper octave, but then pitch tracking is ruined.
For reference, pitch over midi gives me exactly the correct frequency (to the decimal place) and in the right octave. Pitch over CV seems to be giving me the right notes, but at higher octaves than it should.
I’m using the Berhinger Neutron to supply pitch CV and gate, which according to the manual, outputs V/Oct CV from 0-5V (unipolar).
I originally thought I had the same issue as the OP, but have since realized my problem was that the MS-20 I first tested with only outputs Hz/V CV (Korg Style), and not V/Oct (pretty much everything else).
- Why is setting coarse to 440 Hz being recommended when it is clearly adding a linear offset to the frequency, thereby wrecking tuning? Is this perhaps the way it had to be done before a certain update and no longer the case?
- Why does my middle C track at the proper 262 Hz over MIDI, but 2 octaves higher over CV?