This is a new box/install that was working great for several weeks - not sure what changed.
Noticed a buzz/hum during quiet broadcast/stream recently. Remoted back into the box to discover noise. (notice output spectrum)
I've reset the PC, usb interface, and check the inputting audio source - didn't resolve.
Unplugged everything from the interface (usb-C to PC only, no audio cables) yet noise is still present.
Then I replaced the interface and I'm still getting the noise.
Changed USB ports - still getting noise
StereoTool 10.51
Win11 IoT LTSC
i5 - 12th gen
32GB ram
Focusrite 8i6 3rd gen USB-C
EDIT:
Apparently this has something to do with FM broadcasting?
When I turn this off the visual changes and I don't notice the noise.
