Fix PowerPoint for Mac Exporting MP4 Without Narration
Question details
Users report that exporting a narrated presentation to MP4 or MOV in PowerPoint for Mac results in a video without audio.
- Product
- Microsoft PowerPoint for Mac
- Device & OS
- macOS
- Scenario
- Exporting a presentation with recorded narration and slide timings into a video file.
- Observed behavior
- The exported MP4 or MOV file plays slide animations and timings correctly but entirely omits the recorded narration. Users may also see an error stating that some comments were unfortunately not exported.
Ensure you save and back up your original .pptx presentation file to a safe location before uninstalling or downgrading your Microsoft Office applications.
Downgrade PowerPoint for Mac to Version 16.71.0
Since this issue is tied to a specific bug in version 16.72, downgrading to the previous stable release will restore the audio export functionality.
PowerPoint for Mac version 16.72 contains a known issue that prevents audio narrations from being encoded properly into exported MP4 or MOV files. By reverting your application to version 16.71.0, you can bypass this software bug until an official patch is released.
Open the 'Applications' folder on your Mac, locate Microsoft PowerPoint, and drag it to the Trash to remove the buggy 16.72 version.
Visit the official Microsoft release history page for Office for Mac, locate version 16.71.0, and download the standalone PowerPoint installer package.
Double-click the downloaded installer package and follow the on-screen instructions to install PowerPoint version 16.71.0 on your Mac.
Launch PowerPoint, click 'Help' in the top Apple menu bar, and select 'Check for Updates'. Uncheck 'Automatically keep Microsoft Apps up to date' to prevent the system from auto-installing the problematic 16.72 version again.
Open your saved .pptx presentation and export it to MP4. The video should now successfully include your slide narrations and audio timings.
Use WPS Presentation for Seamless Multimedia Exports
If you are tired of dealing with missing audio bugs and software update issues, try WPS Office. It is a highly compatible, free, and lightweight alternative to Microsoft Office that reliably handles complex presentation formats and multimedia exports without hassle.
- 1. Download WPS Office: Visit the official WPS Office website to download and install the free Mac version.
- 2. Open Your Presentation: Launch WPS Presentation and open your existing .pptx file containing your slides and narrations.
- 3. Export with Confidence: Use the built-in export tools to convert your presentation into a video file or PDF format seamlessly.
Frequently Asked Questions
Why does my exported MP4 from PowerPoint have no sound on Mac?
This is typically caused by a known software bug in specific versions of PowerPoint for Mac, notably version 16.72. The bug causes the software to fail at encoding embedded audio narrations during the MP4 or MOV export process.
How do I turn off automatic updates for Microsoft Office on Mac?
Open any Office application like PowerPoint, click 'Help' in the top menu bar, select 'Check for Updates', and uncheck the box labeled 'Automatically keep Microsoft Apps up to date'.
Can I fix the audio export issue without downgrading my software?
If you cannot downgrade your PowerPoint version, a practical workaround is to use a third-party screen recording tool. You can play the presentation in full-screen mode and record your screen alongside internal computer audio until Microsoft releases a fix.
