Klangmaschine does not like Arturia!
I built a Klangmaschine and it works perfectly in my Intelljel test case. However when I put it in any of my 3 Arturia racks only the left channel works. I switched the module forth and back and the behaviour seems to be consistent.Any ideas?
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Hey ch,
That's an interesting issue, especially since KLANGMASCHINE works perfectly in your Intellijel case.
Both FM voices use separate but identical microcontrollers, so I'm wondering whether the right-hand oscillator might have trouble starting up with the Arturia power supply.
Could you try a few things?
Test the individual outputs: Is the right FM voice completely silent at its own OUT jack, or is it only missing from the MIX OUT? Please use the same patch cable and mixer input for both tests.
Test KLANGMASCHINE alone: If possible, disconnect the other modules from one of your Arturia racks and see whether the problem persists. This would help rule out a power supply load issue.
Try another power cable: Have you used the same ribbon cable in both cases? If so, please try another one and a different power header in the Arturia rack.
Check the startup behaviour: Does the right oscillator ever start working after switching the Arturia rack off and on again?
KLANGMASCHINE generates its own 5V supply from the +12V rail, so differences in the power supply or its startup behaviour might be relevant.
Let me know what you find, and we can narrow down the cause.
Cheers,
Stefan