I've got some great futage but some not so great audio :'(. The audio i thought was fine when on location but when i put it on vegas i can hear the low humming of a factory in the background. Is this fixable in vegas?
If it's a low humming, you might be able to use some parametric equalizer filters to supress the frequencies of the humming without affecting the dialogue too much. It could take you a while to fix it, though. If you're willing to spend a bit of money, I highly recommend the Sony Noise Reduction plugin.
As long as you have some soundtrack with just the hum, the NR plugin can do a pretty good job of attenuating it. And it takes all of about 30 seconds to use. You can also download a trial version to see if it works for you (but the trial can't save processed files).