Answers
Can AI dubbing match lip movement?
Last checked 2026-08-14
In short
Naadly does not attempt lip sync. Dubs are timed to subtitle cues, which is correct for narration, interviews, courses and screencasts, and visibly wrong for close-up dialogue. If your footage has faces filling the frame, budget for a lip-sync tool or re-shoot - a dub that nearly matches is worse than one that clearly does not.
Where cue-timed dubbing is the right answer
- Screencasts, software demos and courses - the speaker is rarely on camera.
- Narrated documentary and explainer footage.
- Interviews shot at mid-distance, where a small mismatch reads as post-sync rather than as an error.
- Corporate and internal video, where a fast turnaround beats a perfect one.
And where it is not: close-up scripted dialogue, anything with a visible mouth filling the frame, and comedy that depends on timing. Translated speech also runs longer than English - a dub timed to cues will compress or leave gaps, which is a choice you make per line, not something a model hides for you.