I have a oberheim SEM which I’m controlling with the A4. Unfortunately it can not track decent over 1 octave. After one octave I’m more then a semitone off.
Has anyone else experience controlling other synths with the A4? I would like to know whether mine needs to be fixed or if it’s “normal” behaviour
Don’t know the SEM but Id suggest that if the pitching is wrong when triggered via midi as well as with cv, then the oscillators need calibrating.
If it’s right with midi but wrong with cv then the voltage scale will most probably be wrong.
The info you need to correct either of these scenarios should be in the SEM manual.
Really, had a quick look at a SOS review & that showed midi ports as well? Maybe a different model or something as I said I’m not familiar with it.
If it’s cv only then it’s a safe bet you OSC need calibrating.
Hey man, how’s it going. I use the a4 to trigger my moog voyager which does not track to 1 volt per octave. (it tracks at. 97 and the middle c is around 2.60 volts. The a4 is brilliant for this. What you do is change the v/octave in the cv settings to suite your synth.
So this is how I would calibrate: first you need a tuner, obviously the more accurate the better. Trigger any note in octave one. Now trigger the exact same note an octave higher. If the not is sharp you will need to decrease the voltage per octave or if it’s the other way around… You get my drift.
Honestly spend a little time with getting it perfectly, the a4’s ability to adjust it’s cv range like this is half the reason I bought one. If you are still not happy, I will buy your see off you