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Usb ground loop(?) noise


I get some noise coming out my Deluge audio outputs when connected to usb.

I got a mio4 with a powered usb hub, with 2 instruments, including the Deluge and a midi keyboard connected for midi communication. When I disconnect the usb the noise is gone, but then the Deluge doesn’t send/receive midi..

I also have the mixer (Roland MX-1) and 3 other instruments connected to the Mio4 through midi din cables, so I have no ports left. Finally I also have a midi cable connected from Deluge’s midi out to the mixer’s midi in.

So lots of connections and probably a loop is going on but I have no idea how to fix this. Can anyone help me? Thnx!


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