Hello,
I’m a bassist with an Axon Ax 100 pitch to MIDI converter controlling a Slim Phatty. The Axon has a built in tuner, and obviously outputs MIDI.
The issue that I’m having is that I have to fine tune the Phatty every time I play, and sometimes multiple times a night during a show so that the synth tone matches my dry bass tone.
For example, I tune my bass to standard tuning, and the Phatty will be a half step off. My Axon clearly shows my note of C but the synth note comes out as B. D comes out as C#
Is this normal?
you might have to calibrate sp to your bass.your manual will give you a step by step description of the process.maybe you should check that your tuning is on “global”.hope that helps,i’m a relatively new bastard!
Once warmed up the Phatty should hold tune and track across its entire range. It would take a pretty extreme swing in temperature to drift a warmed up Phatty by a semitone. If using manual tuning, it should warm up to the same knob position as the last time you played. Warm up is 15min +. There are reports that the Slims take quite a bit longer than the Stages/Tributes. If you are playing during the warm up period you will have to adjust the tune down as the output tone is flat while cold and sharpens as the Phatty warms.
Definitely run the calibration as detailed in the manual. Make sure the Phatty is completely warmed up before going through the procedure. The order in which you perform the calibrations does matter; so, follow the manual. It is automated and very easy to perform. It is all done by internal software, no hardware to adjust.
If after performing the calibration and having the Slim fully warmed up, you still find the tune drifting by more than a couple of cents contact Moog support. When everything is working properly the Phatties are very stable for a VCO synth.
If it is always out of tune by a semitone and never just a tad, check the midi stream output of your pitch to midi converter to make sure that is not the issue.