How to Add a Voice Over on Google Slides

How it works

1. Write the script for one slide, paste it in the box and press generate. Free clips are up to 500 characters, about 30 to 40 seconds.
2. Download the MP3 and give it a clear name, such as "slide-01.mp3". Repeat for each slide that needs narration.
3. Upload the MP3 files to Google Drive, then in Google Slides choose Insert > Audio and pick the file for each slide.

Step by step: add the voice over in Google Slides

Slides inserts audio from Google Drive only, so a file on your desktop must be uploaded first. MP3 is the safest format; WAV also works. Adding audio is done in the browser on a computer, not in the phone app.

• Open Google Drive in your browser and upload your MP3 files (New > File upload). Wait until each upload finishes.
• Open your presentation in Google Slides on a computer and go to the slide that needs narration.
• Click Insert in the top menu, then Audio. A list of audio files from your Drive appears.
• Search for or select your file, such as "slide-01.mp3", and click Select. A small speaker icon appears on the slide.
• Drag the icon to a corner so it does not cover your content. Repeat on every slide with a voice over.

Set the playback options

Click the speaker icon, then open Format options in the toolbar. Under audio playback you can choose whether the clip starts when you click the icon or plays automatically when the slide appears, set the volume, loop the audio, and hide the icon while presenting.

For a self-running narrated deck, choose automatic playback and hide the icon. For a live talk, leave it on click so you control when the voice starts.

Share it so others can hear the narration

• The audio stays in your Drive. People you share the deck with need access to the audio files too, or they will not hear them.
• In Drive, share the MP3 files (or the folder that holds them) with the same people, or with anyone who has the link.
• Before you send it, open the deck in present mode and check every slide plays.

Tips for a good slide voice over

• Do not read the slide word for word. Say what the slide means and let the slide show the details.
• Make one clip per slide. If you change a slide later, you only re-do one file.
• Keep each clip short, about 20 to 40 seconds, and end with a hint to the next slide.
• Use the same voice for the whole deck. Jenny is preselected; Aria, Brian and Christopher also suit presentations.

What this tool does and does not do

• It turns your script into a natural AI voice over and gives you an MP3 for each slide.
• It does not connect to Google Slides or edit your deck. You upload and insert the audio yourself, as shown above.
• It changes the voice, pitch and speed only. It does not add music or sound effects.
• This page is not made by or linked to Google. Google Slides is named only to explain the steps.

Frequently asked questions