It isn’t possible to enable embedded audio to play on a PowerPoint file uploaded to a D2L Content module.
If you want your PowerPoint to play with embedded audio, you will need to transform the PowerPoint into a video file prior to uploading. Instructions for exporting and saving PowerPoints as video files can be found for Windows machines here, and Macs here. (Please note that FITS does not currently support the Microsoft Office Suite.)
Once you’ve transformed the PowerPoint file into a video file, you may want to use DePaul’s video hosting/creating/streaming platform, Panopto, to embed the video file in your D2L course. Instructions for using Panopto in D2L are found in our Panopto D2L guide.