Voice Studio · presentations
Add an AI voiceover to PowerPoint
To add an AI voiceover to PowerPoint, write the narration for each slide, generate it as audio in an AI voice, then insert one clip per slide with Insert › Audio › Audio on My PC and set it to start automatically. On Percify you can use one of 52 preset voices or your own voice cloned from a 5.6 second sample, and a short audio clip costs 3 credits. Percify makes the voice, and a talking presenter if you want one. It does not open your .pptx: the audio goes into your deck.
- 52
- preset voices
- 5.6 s
- sample to clone your own voice
- 3
- credits for a short audio clip
- 1
- clip per slide, the easiest to edit
One clip per slide, not one long track
A single narration track for the whole deck breaks the moment someone reorders a slide or changes a line. One clip per slide keeps every change local: regenerate that slide's audio, replace it, done. It also lets each slide stay up for exactly as long as its own narration when you export a video.
Writing narration that sounds natural
A slide is read with the eyes and narration is heard with the ears, so they should not be the same text.
- Say what the slide means rather than reading its bullets aloud.
- Short sentences, one idea each. A voice sounds most natural on lines you could say in one breath.
- Spell tricky words the way they sound, and write acronyms the way you want them said.
- Put a comma where you want a pause. Punctuation is the only direction a voice takes.
A preset voice, or your own
Presets are right for drafts, training decks and explainers that are not about you. Your own cloned voice is right for anything you would otherwise present yourself. Cloning is a one time setup, covered in clone yourself and AI voice cloning.
| Voice | Best for | Cost |
|---|---|---|
| One of 52 presets | Drafts, training decks, faceless explainers | 3 to 5 credits per clip |
| Your cloned voice | Courses, client decks, talks you would give | 5 credits once, then 3 to 5 per clip |
Inserting the audio in PowerPoint
With the clips downloaded, the rest happens in PowerPoint:
- Select the slide, then Insert › Audio › Audio on My PC, and choose that slide's clip.
- On the Playback tab, set Start to Automatically and tick Hide During Show so the speaker icon disappears.
- Repeat for every slide. Leave Play Across Slides off, so each clip ends with its own slide.
- To make a video, set each slide to advance when its clip ends (Transitions tab, After, the clip's length), then File › Export › Create a Video, keeping the slide timings rather than a fixed duration.
Adding a talking presenter
For an introduction or a summary, render a short talking clip of you or a preset avatar and add it with Insert › Video. Keep it short: the median clip people keep on Percify is 19 seconds, and a 480p render averages 69 credits. See the talking head generator.
Fixing a word the voice gets wrong
Respell it phonetically and regenerate only that slide. Because a short clip costs 3 credits, fixing one word never means redoing the deck. If a name keeps coming out wrong, try splitting it into the syllables you want stressed.
Narrate a deck in four steps
- 1
Write each slide's narration
A few spoken sentences per slide, written for the ear.
- 2
Generate the audio
Pick a preset voice or your clone and download one clip per slide.
- 3
Insert one clip per slide
Insert › Audio › Audio on My PC, then Start Automatically and Hide During Show.
- 4
Time it and export
Advance each slide after its clip's length, then export the deck as a video if you need one.
When a slide needs a face
Presenter clips made from one photo, the kind that sit in the corner of a slide.
Explainer
a walkthrough introduction
Company update
a leadership message
Christine
a course introduction
Frequently asked questions
How do I add an AI voiceover to PowerPoint?
Write the narration for each slide, generate it as audio in an AI voice, then insert one clip per slide with Insert › Audio › Audio on My PC. On the Playback tab, set Start to Automatically and tick Hide During Show.
Can PowerPoint read my slides aloud by itself?
PowerPoint can record your own narration, and Office has Read Aloud for reviewing text, but neither gives you a finished, natural voice track. Generating the narration in an AI voice and inserting it per slide does.
Can the voiceover be in my own voice?
Yes. Clone your voice from a recording of at least 5.6 seconds, 15 to 30 seconds is better, for 5 credits once. Every clip after that is spoken in your voice.
Does Percify import PowerPoint files?
No. Percify makes the narration and, if you want one, a talking presenter clip. You insert them into your own deck, which keeps your slides, fonts and animations exactly as they are.
How do I fix a word the AI voice mispronounces?
Respell it the way it sounds and regenerate only that slide. A short clip costs 3 credits, so one word never means redoing the whole deck.
Keep reading
Give your deck a voice
Write the words, pick a voice, drop one clip on each slide.