Mesden -
I doubt whether any PD settings are causing the problem.
The issue is more likely to be one of those Neil & Robert have said:
1. The audio format (you haven't stated that yet)
- hence the suggestion to convert
2. Something wrong with how your PC is previewing the audio
- hence the suggestion to render the whole audio separately.
My PC copes with a huge load sometimes, but when I have lots of audio clips overlapping I've had similar problems in preview. Producing the audio as a separate track then inserting it helps stabilise things & make it run smoothly.
Have you tried any of the suggestions yet?
Cheers - Tony
Visit PDtoots. PowerDirector Tutorials, tips, free resources & more. Subscribe!
Full linked Tutorial Catalog PDtoots happily supports fellow PowerDirector users!