audio not importing with powerpoint files

Hi Missy and welcome to the community!

Individual slide audio should be imported, but playlists will not as they are not supported within Storyline. 

You'll also want to confirm the following regarding your PowerPoint and Storyline files:

• Work on your local drive (your C: drive). Working on a network drive or a USB drive can cause erratic behavior, including file corruption, loss of audio, and other unexpected behavior. 
• You should also make sure the directory path to your project files and your published output is less than 260 characters (for example C:\Articulate).
• Avoid using special characters, accents or symbols in your file names.
• That the PPTA file is located in the same folder as the PowerPoint file.  Otherwise, Storyline will be able to import only the PowerPoint slides but not the corresponding Articulate Presenter resources. (Articulate Presenter does not need to be installed to import PowerPoint / Presenter content.)

Let me know if you still have trouble with your project audio.

Thanks!