[quote name='tedmanzie' timestamp='1411546114' post='2560458']
i don't know imovie very well but you can move the audio in small increments as far as i can remember. what's making it tricky? have you done the clapperboard (or similar) to make a sync point?
[/quote]
Well that's just it. I'm not using a microphone. Just sync'ing video and bass audio.
I've tried plucking a string, but the low rate of attack makes it difficult. Also I'm not really practiced at the software