How to Add Audio Voice-over in PowerPoint
This guide will teach you how to add a recording of your voice to individual PowerPoint slides, so that students can hear you speak as they read through the PowerPoint presentation.
Note: These instructions correspond to are from the 2016 version of PowerPoint, and may need to be slightly adjusted for another version.
Once you launch PowerPoint, click on the Insert tab.
There will be sub menu called Audio, click it.
Select Record Audio to start recording your voice.
(If you pre-recorded your voice with another software, you can select the Audio on My PC option instead.
Once you are ready, click the red record button.
When you are finished with your recording, click OK.
Your slide will now have the audio recording embedded inside of it. It will look like this:
You can drag this icon around to anywhere on your slide, and play it once you hover over it and click the play button. I recommend you place it in the bottom right or bottom left corner of your slide.