Sound quality issue when publishing

Hi Donna, 

Thanks for reaching out! 

I'm not familiar with Premiere Pro, but if there an option to modify the audio settings of your video before publishing, try changing these around to see if this helps. In a tool called Handbrake for example, these audio options are available for me when I try to re-encode a video: 

Try recreating the video using different settings or profiles and see if you find a combination that will produce a video that has a much better quality when imported to Storyline 360. 

If this doesn't help, would you be willing to share a copy of your project file here or through a support case, as well as a screenshot of the audio settings that you used when you published your course in Storyline 360 so we can take a closer look at what's happening?

We'll delete it afterwards!