When connected to midi via usb, it starts doing a popping sound similar to when there's too much work load, it even pops when there's just a mp3 playing... Annoying as hell. The example is on the attachments, recorded with a microphone since i didn't have anything else on the moment. It dissapears when i turn the microbrute off. I already tried maxing everything out thinking it was the ASIO not getting too much power but nope. I have a scarlett interface which works with usb, don't know if that could be a problem.