How to Make Videos Without a Voice Actor

Use it when: One narrator carries the whole video.

1. 01Write for the ear. Short sentences, one idea each, no clauses that need a comma to survive — written-for-reading prose is the main cause of synthetic-sounding output.
2. 02Choose a voice and then keep it. The voice is part of your brand in the same way a logo is, and swapping it between videos costs recognition.
3. 03Punctuate for pacing. Line breaks and full stops are the only pacing controls you have, and they work better than any instruction about tone.
4. 04Generate the full read before you touch the picture, so the visuals get cut to the audio rather than the other way around.

Run it here

Use it when: The format is a conversation — an interview, a podcast clip, a customer-and-founder exchange.

1. 01Write it as a script with speaker labels, not as a paragraph. Turn-taking is the thing that has to be right.
2. 02Cast the two voices as far apart as you can — different pitch, different pace. Two similar synthetic voices are indistinguishable in a mix on a phone speaker.
3. 03Generate each speaker's lines separately so you can re-do one turn without re-doing the exchange.
4. 04Leave a beat of silence between turns when you assemble. Real conversation overlaps; synthetic conversation without gaps sounds like one person reading both parts.

Run it here

Use it when: One video already works and you want it in more markets without recasting.

1. 01Start from a video whose read you are happy with — dubbing amplifies whatever is already there, including a flat performance.
2. 02Get the transcript first and fix it. Every downstream language inherits the errors in it.
3. 03Dub, then re-check the on-screen text: translated audio over untranslated captions and title cards is the most common half-finished result.
4. 04Re-sync the mouth after the language changes if the speaker is visible, or the dub reads as a badly overdubbed film.

Run it here