well the audio is already in a separate file...it was not generated in poser. When you render out to image sequence (separate files) audio is not addressed at all...there is no accompanying audio export, because there is no editing of audio inside Poser. It is assumed you will sync in the post processing software.

You can do a very low res, low size even 'preview" movie out to quicktime just to prove that from out of Poser the audio is in sync. In my experience, rendering out to Quicktime using preview and low settings, you get frames at quicker than one per second, and it is good enough to watch mouth movements, etc.

 Then, when you render out the full res image sequence, there should be no reason it would not be the same. However, things happen!  The composite software I use, AfterEffects, can import the audio and you can check everything there before you re-export. Naturally, FinalCutPro is eminently geared to handling separate audio track, import of TIFF image sequence, and tweaking until everything is in sync.

Hope that helps
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