MATRIXSYNTH: Moog One 16 voice - tuning problems

Wednesday, May 01, 2019

Moog One 16 voice - tuning problems

Published on May 1, 2019 Monty

"About 30 minutes after power up, my Moog One VCO2 and VCO3 completely lose their tuning. Not just a frequency offset, but great variation up the scale and across voices.

The video shows a comparison between VCO3 then VCO2 then VCO1. Finally they are played at once.

I contacted Moog Support about this 3 days ago. No answer yet, but let's see what they have to say..."

Moog One 16 voice - tuning problems (as good as my unit gets)

Published on May 1, 2019 Monty

"This video demonstrates Moog One tuning variation over time, voices, and position on keyboard.
This is as GOOD AS IT GETS with my unit - noticeable fractions of a semitone in error. See my other video to see what can happen when tuning goes completely wrong:

Details for those who care:
- The unit was powered up about 10 minutes before the recording start. Long after the video completed, the tuning variation persisted. This isn't just a "wait until it warms up" problem.
- Firmware is v1.0.4. A fresh "user space" was created as per Moog Support instructions
- The sound is just the init preset (press shift+compare) with OSC2 and OSC3 added in parallel. You are hearing all three oscillators playing in unison"

Moog One tuning issues: Update - RESOLVED??

Published on May 4, 2019 Monty

"This video demonstrates my discovery that the Moog One can be put permamently out of tune (until reboot) by loading patches with seemingly invalid OSC frequency offset parameters. These parameters cannot be dialled in from the UI, but can occur if users make patches based on original factory ones. I think Moog know about this (hence their recommended "create a new User Space" fix to tuning issues) but I have never seen it explained before.
For me, this issue has interacted with more subtle tuning problems which appear to have been solved in a beta firmware release Moog Support have issued me (an update beyond the current 1.0.4)
I apologise for the poor picture and sound quality - this is just a quick smartphone video."

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