Starting out, I have a decent mic, but whenever I record with audacity, I can hear a buzz in the background, its not that loud, but you can still hear it... Ive gone on skype, and my friends say they cant hear anything, Bandicam when I record, I dont hear the buzz, as far as I know, it only does it with Audacity, the noise reduction option doesnt work, it will take some of it out, but you can still hear it.