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Voiceover

How to Do a Voiceover on PowerPoint

PowerPoint can record your narration or play an audio file per slide. Here is each path, and how to add a natural generated voice.

Step by step

How to do a voiceover on PowerPoint

  1. Generate the voice in Cantari: paste your script, pick a voice, and generate a natural read in seconds, then export the audio file (MP3 on every plan, WAV on paid plans). No microphone, no retakes.

  2. To insert a ready-made voice file: Insert tab, then Audio, then Audio on My PC, and choose your file.

  3. Click the audio icon on the slide, open Playback, and set it to Start Automatically and (if needed) Play Across Slides.

  4. To record yourself instead: use the Record tab (or Slide Show, then Record) to narrate slide by slide with the timeline.

Inserting an audio file is the cleaner path for a polished deck: generate each slide's narration in Cantari, export the MP3, and insert it on that slide with Start Automatically. No live recording, no room noise, and you can re-generate one slide without re-recording the deck.

Straight answers

Voiceover on PowerPoint, answered.

What audio format does PowerPoint accept?
MP3 and WAV both work. Cantari exports MP3 on every plan and WAV on paid plans, so either is fine to insert.
Can I have the narration play automatically across slides?
Yes. Select the audio icon, open the Playback tab, and set Start to Automatically. For one track over several slides, turn on Play Across Slides.
How do I redo just one slide's narration?
If you inserted audio files, delete that slide's clip and insert a freshly generated one. Recording in-app means re-recording; a generated file means re-generating only the slide that changed.
Keep going

Voiceovers elsewhere.

The voice itself comes from text to speech. New to it? Read the guide.

Your PowerPoint voiceover starts with the voice.

Generate a natural read from your script in seconds, export it, and add it the way this guide shows. No microphone required.