cliffjpiano wrote:Thank you Hanon. Very appreciative. I will try to find a solution and try your recommendation in unplugging USB powered equipments. Thanks
What I meant was any externally powered USB device (device with it's own source of power).
I don't believe that devices powered by the same USB source would be a problem.
In addition, your audio interface should not share a USB connection with any other (no hubs, or replicators.)
I had a situation with my NE3 that my audio interface would have the same noise as you report.
If I unplugged my laptop charging adapter, or the NE3, the noise went away.
I also currently have the problem with my 15" MBP if my Motif Rack is powered on, and plugged in via USB at the same time as the audio interface.