Slideshows are about more than just what you see. By adding audio like music, voiceover, or sound effects, you can use Microsoft PowerPoint to enhance your presentation or make it more useful to your ...

You can add music to iMovie from a variety of different sources, depending on the device you're using. iPhone and iPad users have the option to add soundtracks and sound effects via the iMovie app.

Mary-Elisabeth is an associate writer on CNET's How-To team. She's a recent graduate of UNC-Chapel Hill's English Department, and resides in Charlotte, North Carolina. On the How-To team, she covers a ...