Audacity Forum

Hey Steve... It's a Dell Desktop PC running XP, and the interference continues when the monitor is switched off. The adapter was connected to a USB port on the CPU itself, but the interference remains when I switch it to a USB hub. I also tried disconnecting the power source to the audio adapter, bu...

Good theory, but no luck. I minimized Aud and the whine continued.

I'm using an Alesis Multimix 4 USB mixer to do voice and keyboard recordings. I hear a whine in the headphones plugged into the mixer, but only when Audacity is recording or monitoring, The whine goes away when I stop monitoring. The whine is not perceptible in my recordings. It is present even if a...