Why narrate with a cloned voice
- No retakes of the whole deck because you stumbled on slide 14.
- Easy updates: new figures on one slide mean one new take.
- Consistent sound across a deck recorded over several days.
- Other languages for international audiences, in the same voice.
Step by step
- Clone your voice from a 10-second sample in your presenting voice. See cloning your own voice.
- Write the speaker notes as narration, one line per slide, in the slide order. If a slide needs two beats, such as before and after an animation, give it two lines.
- Paste them into a script, generate, listen and save.
- Download. The files are numbered in order, so
007 Narrator.wavis slide 7. - Insert each file on its slide. PowerPoint, Keynote and Google Slides can all add an audio file to a slide and play it automatically; set the slide to advance when the audio ends if you're exporting a video.
- Export as a video if you're sharing it, or present it live with the narration playing.
Writing narration for slides
- Don't read the slide. Narration should explain what's on it, not repeat it word for word.
- Aim for 20 to 60 seconds per slide: about 50 to 150 words. See script length and timing.
- Write numbers as they should be said: "a twelve percent rise", not "12%".
- Leave a beat at the start of each slide's audio so viewers can look at the slide first.
Updating later
Edit the slide's line, generate it again and replace that slide's audio. Keep the lines in the same order as the slides; if you insert a slide in the middle, add its line at the end of the script and note its slide number, so existing file numbers don't shift.
For training and courses
Narrated decks are often the core of internal training. If you're building a whole course, see AI narration for e-learning; if a colleague narrates, get their written permission for their cloned voice first.