Odd knob behavior.

Looking at the standalone editor I get a visual representation of my knobs when I move them. I can see and hear that some of them are not matching up on a 1:1 basis. For instance my VCO 1 LVL & VCO 2 LVL only use about 50% of the physical knob-turn to show 100% of the turn on the editor. What I’m seeing is also what I’m hearing, past half-way the knob doesn’t increase the volume. I get the same anomaly on other knobs like AmpDECAY only uses about 30% of the physical knob to reach 100% of it’s affect. Knobs like the CUTOFF and RES and VCO2 FREQ all perform as expected, audibly and visually within the editor.

Any ideas?

Have you tried a pot calibration routine yet?

http://forum.moogmusic.com/viewtopic.php?f=11&t=19392&p=116840&hilit=+knob+calibration+pot#p116840

Thanks for the suggestion. I just tried the knob calibration routine and it did not fix my problem.

Any other ideas?

I believe the editor send 14-bit NRPNs, which is two messages MSB and LSB. Is one of them missing? You don’t have 7-bit controllers turned on the Minitaur or the Editor?

Thanks for sharing info… :cry:

The MSB and LSB do not each cover one half of the parameter range, as then the bit deepth would be only 2x 128 available values = 256 values = 8 bit.
It is rather MSB doing the higher 7 bits and the LSB doing the lower 7 bits. So the bit deepth is 14 bit = 2^14 = 16384 different values.

Therefor:
The MSB is covering about 99.2% of the range.
The LSB is just filling up the values in between and from value 16256 (binary 1111111 0000000) to 16384 (binary: 1111111 1111111).

Wanted to bump this as I am having a rather weird pot problem.

My VCO 2 Freq is controlled by my FF pot. I get no response from the actual VCO 2 Feq pot but I can change it in the stand alone editor. In addition as I turn the filter frequency pot up, it changes the tuning of VCO 2.

It seems they, FF and VCO 2 Freq, got tied together somehow and I cannot figure out how. Just bumped up to 2.1 Firm and 3 Editor. No problems prior to this.

I have not figured out my issue yet. Haven’t had the time to call support. If I do figure out my issue, I’ll be sure to report back.

Well I tried running the knob calibration again and everything is working! I may have been trying to send the knob-sysex-calibration in bootloader mode when I tried to resolve this unsuccessfully before.