If you get noise from Osmose's audio outputs only when connecting the USB cable, then this noise travels from your computer (USB host) in a non-ideal environment to the instrument. This is not specific to Osmose but can happen on many digital devices that use the same internal power supply for powering both DA conversion and the onboard USB chipset. You can try the following to eliminate it:

- Change the USB port to which you connect your Osmose. If you are using a hub and a USB audio interface, try plugging Osmose into the same hub as your audio interface.

- Change the power supply situation of your equipment, e.g. connect your computer and your audio interface/mixer and speakers to the same power outlet and try different power outlets as the common source of power. If the computer is a laptop, running on battery can temporarily improve the situation.

- Use balanced TRS cables instead of unbalanced TS cables with Osmose's line outputs. The input you connect them to must be balanced for this to have an effect.

- Try a USB cable with a ferrite core, or buy a separate ferrite core that you can attach to the USB cable.

- Insert a USB galvanic isolator or ground isolator into the USB connection. These can be cables or adapter boxes and are separately available from third parties. We also offer our own anti-ground loop adapter cable on our website. Learn how to connect it here: How to use the anti-ground loop cable (Y cable)