How to add a voice over to a Google slides presentation?
- Step 1- Download your presentation as PPT and open in Microsoft PowerPoint as you can only download individual slides in Google Slides
 - Step 2 - Export as images from Microsoft PowerPoint
 - Step 3 - Create a Project and Upload Slides in Murf Studio
 - Step 4 - Enter your script
 - Step 5 - Choose Voice for voice over in PowerPoint and Background Music
 - Step 6 - Adjust the timing of voice and visuals
 - Step 7 - Render Video and Download
 
For a detailed explanantion, check out this blog.