When I create a PowerPoint video (by converting a PowerPoint into an MP4 under the files section of PowerPoint), the audio is fine when uploaded to YouTube or listened to in Windows (or another viewer). However, when I upload my PowerPoint videos to Canvas, there is a strange buzzing and crackling sound behind all of them. This seems to happen whether I convert the file to video in HD or Standard. This also seems to happen whether I upload the videos to my files in Canvas or through Panopto. I know that it likely has to do with the fact that the audio is being rendered in PowerPoint and then again in Canvas.

Is there a workaround for this or do I need to just start using YouTube and links for my videos? I do not want to record my videos in Panopto. I need to be able to upload already finished videos.