Choosing a Narrator Voice and Speaking Speed
The voice is the first thing viewers judge in a narrated video. A good text to speech narrator voice disappears into the background and lets the content do the talking. A poor match, or a speed that’s slightly off, makes even good slides harder to follow. This post covers how to choose a voice, set the speed and write a script that sounds natural.
Read the video transcript
The voice is the first thing viewers judge in a narrated video. Here's how to choose a narrator voice and speed that let your content do the talking.
Don't judge a voice on its sample sentence. Paste in a real paragraph with the hard bits: names, numbers, acronyms. Compare two or three, then pick the easiest to follow.
Speed matters as much as the voice. Too slow feels patronising, too fast loses people. If captions flick past, slow down; if you want to skip, speed up.
A synthetic narrator reads exactly what you write. So 'Q3 rev. up 8%' becomes 'Revenue in the third quarter rose eight per cent.'
Each slide stays up as long as its narration lasts. For quiet slides or silent loops, set a minimum time per slide so nothing flashes past.
On Pro, a.i. directs the video, timing each animated scene to your narration. Try Basic first, then hear your deck at powerpoint2vid.com.
Your speaker notes become the narration
In PowerPoint2Vid, your speaker notes are the script. Whatever you write in the notes is what the narrator says, and you can choose a voice and a speaking speed for the whole video. That means:
- The script is yours to control. Change a note and the narration changes with it.
- Voice and speed are separate choices. You can keep the voice you like and still slow it down for dense slides.
- Preview before you commit. The same script can feel quite different in two voices, so it’s worth comparing them.
How to choose a text to speech narrator voice
Match the voice to the audience
Think about who’s listening.
- Students often do well with a clear, steady voice that doesn’t rush technical terms.
- Customers respond to a warm, conversational tone.
- Staff in training need clarity above all, especially for policy wording.
Match the accent where you can
If your audience is mostly in one region, a voice with a familiar accent can feel more natural. Where English voices for several regions are on offer, such as Australia, the UK and the US, pick the one that suits your listeners. Check pronunciation of local place names and terms.
Test with your own script
Don’t judge a voice on its sample sentence. Paste in a real paragraph from your notes, including the hard bits: names, numbers, acronyms and technical terms.
Here’s a short test script you can adapt:
“Welcome to the induction for new staff at the Joondalup campus. This module takes about six minutes. We’ll cover three things: where to find your timetable, how to book a room, and who to call if something goes wrong. Let’s start with your timetable.”
Listen for place names, numbers and whether the pauses fall in sensible places.
Compare two or three, not twenty
Shortlist a few voices and play the same paragraph through each. Ask a colleague to listen too. Pick the one that’s easiest to follow, not the one that sounds most impressive.
Setting the speaking speed
Speed matters as much as the voice. Too slow feels patronising. Too fast loses people.
| Content | Suggested setting |
|---|---|
| Dense technical or academic material | A little slower than default |
| Policy, compliance or instructions | Default or slightly slower |
| Product overviews and marketing | Default |
| Short social clips with captions | Default or slightly faster |
These are starting points, not rules. Preview a full slide and adjust.
Signs the speed is wrong
- Too fast: captions flick past before you can read them; you find yourself rewinding.
- Too slow: you’re ahead of the narrator; you want to skip.
Speed and slide timing
In PowerPoint2Vid, timing follows the speech, so each slide stays up as long as its narration lasts. Slow the voice and every slide gets longer. If a slide has very little narration, set the “minimum seconds per slide” so it doesn’t flash past.
Write for the voice, not the page
A synthetic narrator reads exactly what you write. A few habits make any voice sound better.
- Short sentences. They give the voice natural places to pause.
- Spoken numbers. “About two thousand” sounds better than “approx. 2,000”.
- Spell out abbreviations the first time: “the Learning Management System, or LMS”.
- Avoid symbols. Write “and” instead of “&”, and “per cent” instead of “%” if the voice reads symbols awkwardly.
- Use full stops for pauses. A comma gives a short pause; a full stop gives a longer one.
Before: “Q3 rev. up 8% vs Q2 & ahead of target (incl. new accts).”
After: “Revenue in the third quarter rose eight per cent on the second quarter. That puts us ahead of target, including new accounts.”
If a word still sounds wrong, spell it the way it’s said. For example, a surname might work better written phonetically in the notes. Remember that the captions show what’s in your script, so check both.
When to use no narration
Not every video needs a voice. PowerPoint2Vid has a “no narration” option for silent videos, useful for looping displays or social clips where most people won’t turn the sound on. Pair it with clear headlines and a sensible minimum time per slide.
For captions on narrated videos, see Captions on Presentation Videos: Why and How.
Quick checklist
- Shortlist two or three voices
- Test each with a real paragraph from your notes
- Check names, numbers and acronyms
- Set the speed for the content and audience
- Rewrite notes in short, spoken sentences
- Set a minimum time per slide for quiet slides
- Use the same voice and speed across a series of videos
Hear your deck in the PowerPoint to video converter
The fastest way to choose a voice is to hear it read your own slides. Open the PowerPoint to video converter, drop in your deck and try a few voices and speeds. a.i. directs the video around your narration, timing each animated scene to the voice so key points land on the word that names them. Settle on the right sound, then download the finished video.