The easiest way to do this is to temporarily tell VMS to "ignore" the fact that the audio and vision are grouped together, then slide or stretch the audio to get it back in synch. (Leave the video untouched, and do all your adjusting with the audio...)

There is an icon up at the top of the window called "Ignore Event Grouping". It looks like an unlocked padlock in front of four little squares. Click this icon to enable it, then you will be able to slide the audio left and right without moving the video.

Note: The Audio and Video tracks will turn pink as soon as you move one or the other. This is normally a warning that they are out-of-synch -- that you have shifted them out of their original relationship. However, this is what you need to do in this case, so just ignore the pink warning.

Another setting might help you. Click "Options" in the toolbar: the very first item is "Quantize to Frames". If this setting is enabled, the icon has a faint blue outline. If not, no outline. When enabled, events -- including audio -- can only be aligned to frame boundaries. You might need to turn this Quantize icon off so that you can slide the audio to any position needed. But MAKE SURE you re-enable this icon (Quantize to Frames) when you are done -- you don't want to risk moving your video to non-frame boundaries.

If the audio seems matched up at the beginning, but gets progressively out of synch the further you go towards the end of the video, then you may need to stretch the sound to get it right. Put your mouse over the very end of the audio track, hold down the CTRL key, then drag the end left or right. This will stretch or shrink the audio event as needed.

When you have the audio synched as best you can, go back and turn that "Ignore Event Grouping" icon back off, and the video and audio will again be locked together.

Tim L