Why does presenter pad the duration of the slides with audio?

Hi Leslie! 

I know from a previous thread that you are using Presenter '13, right?

I have not seen this reported with this version, but let's first look at this:

If you preview or publish your presentation and find that extra silence has been unexpectedly added to the end of one or more slides, please review the following article for a solution.

Yes Studio '13. I'll checkout that article and see if that helps.

Thanks!

Sounds great, thanks!