Steps for Adjusting Recorded Audio
From Microsoft Support
Adjust recorded audio
1. Select the Audio Tools Playback tab, and then select which options you'd like to use:
o To trim the audio, select Trim and then use the red and green sliders to trim the audio
file accordingly.
o To fade in or fade out audio, change the number in the Fade Duration boxes.
o To adjust volume, select Volume and select the setting you prefer.
o To choose how the audio file starts, select the dropdown arrow and select an option:
On Click – Plays the audio file automatically with a click.
Automatically – Plays automatically once you advance to the slide that the
audio file is on.
o To choose how the audio plays in your presentation, select an option:
Play Across Slides – Plays one audio file across all slides.
Loop until Stopped – Plays an audio file on loop until it’s stopped manually by
clicking the Play/Pause button.
o To have the audio play continuously across all slides in the background, select Play in
Background.
Recording and Adding Narration with Timings
• Microsoft Support: Record a Slide Show with Narration and Slide Timings
o Instructions for Office 365, 2013, 2016, 2010, 2007
o Includes helpful recording tips at bottom of page
Audio File Formats Supported in PowerPoint
• Microsoft Support: Video and Audio File Formats Supported in PowerPoint
o Article covering common file formats to avoid “codec” errors, and supported formats for
Windows, Mac, iOS, and Android.
• Microsoft Support: File Formats that are Supported in PowerPoint
o Additional information about file formats for PowerPoint 2016, 2013, 2010, 2007.
Movie File Format Tip for Sharing Presentations Online
If you will be sharing your presentation with multiple people who are using different systems that may
or may not have the correct codecs to play your presentation’s audio, consider saving and sharing a
copy of your presentation in a universal movie file format.
• Microsoft Support: Save a Presentation as a Movie File or MP4