Hello,
I possibly have a problem with the pitch CV-in, maybe somebody can help me out?
I read somewhere that the pitch CV-in on Slim Phatty is not really 1 V/oct but rather 0.97 V/Oct.
Well, anyway, i got me a Korg Ms-03 witch is i Pitch-CV device which translates audio pitch into CV-signals.
My idea was of course to hook up this to the slim phatty and to be able to control/“play” the slim phatty with an instrument or voice.
The Korg MS-03 produces both V/Hertz (Korg-type) and V/Oct from the analog audio in. It also produces trig and envelope-signals, which work with the SP.
I have calibrated the ms-03 device so that the CV produced measures 1.5, 2.5, 3.5 and so forth with an octave difference of the input signal.
From this basic setting you can then adjust the base pitch and the scale with at span of ca 0.9-1.1 V/Oct.
Theoretically this would work fine with the Slim Phatty. the span is within the span of the CV-input.
However, i can not get this setup to work with the slim phatty:
I can adjust the base tone on the KORG so that the correct tone is produced by the SL, but then it is impossible to fully adjust the scale so that the slim phatty produces a tone an octave higher, in correspondence with the input signal. It almost gets there, but only close, and as you might imagine, it’s not what you want.
So i wonder; is there any way to adjust the pitch-CV-input scale on the Slim (some trim-potentiometer inside perhaps?). It appears not to meet the values it is supposed to, according to specifications.
Could it be a calibration issue? Should I leave it to Service?
The other solution would be to slightly attenuate the CV-signal so that the scale is further adjusted, as it seems that it’s not enough as it is, even though the voltage produced seems fine. I guess i would need som simple gear for this, maybe build me something. Any suggestions?
Any clues, thoughts, tips on this subject?