Buzz connecting pitch out to Buchla Easel Command

[antonriehl]

I've recently been connecting by KSP to my Buchla Easel Command's v/oct input, and when I do I'm getting a loud buzzing sound (all 4 pitch outs on my KSP). This does not happen on my normal keystep or any of my other eurorack sequencers (although it does also happen with my Beatstep Pro).

Any thoughts on how to address this? Both the KSP and BSP are being powered by USB.

[Edouard_Arturia]

Hello.
If it is powered by USB this might be a ground loop.
Can you please try to power the KSP and BSP using a PSU/Phone Charger and see if cutting the ground loop helps?
Best
Edouard