Quick and convenient, YouTube to MP3 is a website where you can copy and paste the URL of the YouTube video you want to convert. Just add the link and click the Go button. At the next screen ...

A much better approach: Embed a link to a YouTube video instead. This has the same effect as adding a video from your computer, but will add virtually nothing to your PowerPoint's file size.

You can convert a video to an MP3 file using Adobe Media Encoder, which can help save you storage space on your device.