Lip Sync (AI)
AI lip sync automatically matches a person's or avatar's mouth movements to an audio track, so the visuals look like they're speaking the words.
Lip-sync models align a face's lip and jaw movements to a voice track — real or AI-generated. It's what lets a talking-head video, avatar, or dubbed clip look natural in a new language or with new narration.
Common uses are AI avatars delivering a script, localizing content into other languages, and fixing or replacing dialogue without reshooting. Quality depends on matching the audio's phonemes and timing to the face.