2 sounds 1 file :/

[projectfear]

I have a few VOB files on my PC that I want to combine into a video, but they have 2 dubs.

I downloaded Audacity and ffmpeg for it, used vobedit to export the .ac3 sound files (clicked some demux option) and imported them into audacity. Problem is it's one sound file but it has 2 dubs inside it, so I don't know if audacity or some other program can "figure out" the difference in sounds and remove one of them :S