Localize a short presenter clip
Pair a visible presenter with an approved translated voice track for a brief social or product message.
AI Video Tool
Lip Sync AI
Synchronize a visible speaker in a short source video to uploaded speech audio while keeping facial identity, framing, and the surrounding shot stable.
Illustrative workflow preview
Task-specific workflow
This page applies a fixed lip-sync instruction automatically; you control the source video and speech audio rather than a prompt.
Create your version
Upload one source video
Create your version
This page applies a fixed lip-sync instruction automatically; you control the source video and speech audio rather than a prompt.
Create with Lip Sync AIHow this tool works
Lip Sync AI, with the inputs and limits made clear
Synchronize a visible speaker in a short source video to uploaded speech audio while keeping facial identity, framing, and the surrounding shot stable.
What to provide
- One source videoUpload a clip containing the visible speaker whose mouth and face should be synchronized.
- One speech audio fileUpload the spoken track that should drive the visible speech timing.
Steps
- Upload one source video with a visible speaking face.
- Upload one speech audio file between 2 and 15 seconds.
- Run the MiniMax H3 reference task and check mouth shapes, expression, and audio timing.
What to expect
- One video synchronized to the uploaded speech track.
- Mouth movement and facial articulation should follow the speech while the original speaker and shot remain recognizable.
- The source framing, body movement, lighting, and background are used as continuity references.
Where results can vary
- The result is less reliable when the mouth is hidden, the face turns away, or several people speak at once.
- Mismatched speech duration, noisy audio, or a source with severe motion blur can reduce synchronization quality.
- The workflow accepts a source video and a speech track of up to 15 seconds each; it is not a multi-minute dubbing tool.
Practical starting points
Use Lip Sync AI for focused video experiments
Update spoken wording
Use a new speech recording when the existing performance and camera framing should stay the same.
Animate a concise announcement
Create a short talking-head variant from a source shot and a prepared voice recording.
Questions before you run it
Lip Sync AI FAQ
What files are required for AI lip sync?
You need one source video with a visible speaker and one speech audio file. The audio supplies the target speech timing.
Can lip sync handle any face in a video?
It works best when one speaker is visible, well lit, and facing the camera. Covered mouths, profile views, and rapid cuts can create artifacts.
Will the background stay the same?
It is instructed to keep the source framing, lighting, body movement, and background. Because the clip is regenerated from those references, small background or detail changes can still appear, so review the result before publishing.
Starts with the source material this task actually needs
Keeps a focused prompt without unrelated presets
Opens the task and final result in your Create feed