What is causing this noise?
I've tried unplugging USB devices, HDMI cables, etc. I'm using Windows 7, a mackie mixer, heil pr40. Even when I have all power to mixer /mic turned off I can still see that annoying hum. Any ideas?
What is causing this noise?
I've tried unplugging USB devices, HDMI cables, etc. I'm using Windows 7, a mackie mixer, heil pr40. Even when I have all power to mixer /mic turned off I can still see that annoying hum. Any ideas?