I have recently been working on a video and have replaced the original audio of each video clip with that of an external recorder, unfortunately (and due to me being stupid) I've only now realised just to bad settings on the audio recorder that the original audio recorded with the video is much better quality.
Is there a way to relink this audio to the original video file? I am using CS6, thanks
Highlight the clip in the timeline, highlight the source clip in the bin, alt/option drag the source clip onto the clip in the timeline. That should replace the modified clip but also keep any other effects/adjustments you may have done to it.