How to Turn Google Slides into a Narrated Video

If your lectures live in Google Slides, you already have most of what a course video needs. The slides carry the visuals. The speaker notes carry what you would say in the room. Going from Google Slides to video is mostly a matter of getting those two things into a format a converter can read, then letting a voice do the talking.

This guide walks through the process step by step, with a focus on lecturers and learning designers who want narrated videos for their learning management system without booking a studio.

Why narrate your slides instead of recording a lecture

Recording yourself live works, but it has costs. You need a quiet room, a decent microphone and a clean run without stumbles. When one fact changes next semester, you record the whole thing again.

A narrated slide video works differently. The script sits in your speaker notes, so fixing a mistake means editing a line of text and making the video again. Students get the same clear explanation every time, and they can pause and replay at their own pace.

Step 1: Tidy the deck in Google Slides first

Before you export anything, spend ten minutes on the deck itself. Problems are easier to fix here than later.

Check every slide has a clear headline. A video viewer can’t ask you what a slide is about.
Move detail into the speaker notes. Keep the slide for the key idea and the visual.
Make body text large. Aim for 24pt or bigger so it reads on a laptop screen.
Delete hidden or skipped slides you don’t want in the video.
Check the slide size. A 16:9 layout fits video players without black bars.

Step 2: Write speaker notes for the ear

The narration reads your speaker notes, so they need to sound right when spoken aloud. Notes written as reminders to yourself (“cover bias here, ref Smith”) won’t work as a script.

Write the notes as full sentences, the way you would explain the slide to a student sitting next to you.

Before (reminder notes):

Sampling bias - convenience samples - eg uni students - limits generalisability

After (script notes):

Here’s the problem with convenience samples. If you only survey students on your own campus, you learn a lot about those students. You learn much less about everyone else. That’s why we say the results are hard to generalise.

The second version is longer, but it is what a listener needs. Short sentences, spoken words, one idea at a time. There is more on this in our guide to choosing a narrator voice and speaking speed.

Step 3: Download your Google Slides as .pptx

Google Slides can download a presentation as a Microsoft PowerPoint (.pptx) file. Look for the Download option in the File menu and choose the PowerPoint format. The file keeps your slides, text and speaker notes.

A few things to check after the download:

Fonts. If you used an unusual Google font, it may be swapped for a similar one. Preview the result and adjust if needed.
Embedded videos. Video clips inside slides usually don’t carry across into a narrated video. Replace them with a still image or a screenshot.
Complex animations. Some Google Slides animations don’t map exactly to PowerPoint. That’s fine for video, because the converter designs its own motion.

Step 4: Turn the Google Slides to video with narration

Open PowerPoint2Vid in your browser and upload your .pptx file. If your deck contains unpublished research, student examples or assessment material, check your organisation’s policy on using online tools before uploading.

Then make a couple of choices:

Voice and speed. Your speaker notes become the narration. Choose a voice and adjust the speaking speed so it sounds natural, not rushed.
Let the video be directed. The deck is upgraded rather than just recorded: a stronger story, animated scenes, polished transitions and timing that follows the voice. Short slides, like section titles, get a proper moment on screen.

Step 5: Captions and teaching-friendly pacing

For course content, captions matter. They appear in the video itself, so they show up in any player without extra setup.

They help students who are deaf or hard of hearing, students reading in a second language, and anyone watching on a train with the sound off. If your LMS needs a separate caption file, you’ll need to create that separately, and your speaker notes give you an accurate transcript to start from.

Two other options are useful for teaching:

Points that build in order. Key points land on the word that names them, which helps students follow along.
Charts rebuilt as animated charts. The numbers stay the same, and the movement shows students where to look.

Step 6: Watch, then download

Watch the whole video before you share it. Listen for:

Words the voice mispronounces (technical terms and names are common culprits)
Slides where the narration runs much longer than others
Notes that read awkwardly out loud

Fix these in the speaker notes. If you edit in Google Slides, download the .pptx again and upload it.

When you’re happy, download the video. It’s an MP4, with WebM available if you need it.

A sample slide, start to finish

Here’s what one slide looks like in a finished lecture video.

Slide headline: “Convenience samples are easy to collect and hard to generalise”
Slide visual: A simple diagram showing one campus inside a much larger population
Speaker notes: The four-sentence script from Step 2
In the video: The headline fades up, the diagram follows, the voice reads the script, and captions appear sentence by sentence along the bottom

That single slide takes about twenty seconds on screen. A twenty-slide lecture segment becomes a focused video of roughly seven to ten minutes, which suits most course modules.

Quick checklist

Clear headline on every slide
Speaker notes written as full spoken sentences
Body text 24pt or bigger
Downloaded as .pptx from Google Slides
Voice and speed chosen
Captions kept on for accessibility
Finished video watched, mispronunciations fixed in the notes
MP4 downloaded and uploaded to your LMS

Turning your Google Slides into course videos

The hardest part of a narrated lecture video is the script, and if you’ve written good speaker notes, that part is done. The rest is a download and a few settings. For a broader look at the whole process, see how to convert PowerPoint to video.

Download your deck as .pptx and upload it to the PowerPoint to video converter. On Pro, a.i. is the director behind each video: it tightens the story, designs each scene and times the animation to your narration, so a lecture deck lands like a produced explainer. Basic is there to try it, with a watermark; Pro starts at A$29 a month with 10 a.i.-directed videos included.