An AI image impresses for five seconds; a bad voice-over ruins a whole film. The good news is that voice is the cheapest part of an AI production, around 10 credits per minute. You still have to set it up properly.
Pick a voice that carries the genre Documentary, thriller, advertising and animation do not call for the same grain. Audition three voices on the same line before producing three minutes: the viewer's first impression is as auditory as it is visual.
The settings that actually matter Stability controls tonal consistency, similarity controls timbre fidelity, style controls expressiveness. Too much stability gives a robot, too little gives a drunk actor. Aim for medium stability and high similarity.
Write for the ear, not for the eye Short sentences, one idea per sentence, breathing punctuation. Add commas where you want a breath: synthesis engines read them as real pauses.
Clone a voice, with consent Voice cloning reproduces a voice from a clean sample of a few dozen seconds. Only use voices you have written permission for — that is a legal obligation, not a precaution.
Sync on the timeline Drop the voice on the VOICE track, then adjust the shots rather than the voice: extending a b-roll shot is easier than re-recording a line. Add music and SFX after the voice, never before.
Frequently asked questions
How much does a 3-minute AI voice-over cost? About 30 credits — a fraction of a single video shot.
Does AI voice sound natural? Current engines are very convincing, provided you write short sentences and limit acronyms and raw digits.
Can I produce multilingual dubbing? Yes: generate the same narration in several languages and place each version on its own voice track of the same edit.
Studio Movies IA gives you 50 credits at sign-up — one free 5-second shot, no card required. You can test the method described here in under ten minutes.