Video and Audio coupling Cross

Wow - this is the first time I've had an afternoon to really explore the Video side and have to say I'm so impressed - had a lot of fun and only just started to learn the features in there.
One thing I'm struggling with though is, say I've got a video that's got poor quality audio, and I want to play my high quality audio file instead, I've got that working and both playing at the same time (and there's an option to link them together as a saved 'coupling').
But is there a way to adjust where the video starts with the audio file just as most are a little out of sync in their starting points ?
One thing I'm struggling with though is, say I've got a video that's got poor quality audio, and I want to play my high quality audio file instead, I've got that working and both playing at the same time (and there's an option to link them together as a saved 'coupling').
But is there a way to adjust where the video starts with the audio file just as most are a little out of sync in their starting points ?