I'm a newbie to Vegas and I need some help cleaning up noise introduced by bad tracking of a camera. The bottom edge of the video comes and goes with a static bar and the audio track plays okay but with static that comes and goes also. How can I clean up the audio? I've tried inserting the "Insert Assignable FX..." without much luck. I also downloaded a demo of "Noise Reduction" and tried it. It there a good tutorial on how to clean up bad sound?