🗣️ How do I lip-sync a character to the voiceover?

The Lip Sync tab matches a character's mouth and facial movements to the scene's voiceover (or custom audio). It adds real talking-head realism and works best on clear, forward-facing faces. There are two sub-tabs: AI Lip Sync (automatic) and Actor Mode (more control).

Sub-tabs

• AI Lip Sync: automatic sync to voiceover
• Actor Mode: more control for defined characters

Fields

• AI Lip Sync Model: OmniHuman v1.5 (Bytedance), Kling, Veed and others - Choose the desired model and Click on Apply.

• Scene image auto-loaded in preview
• Prompt: To convert from an Image directly into an animated lip-sync motion, mention the scene context to guide the lip sync in the prompt box.

• Actor Mode: Use the actor mode if you want an output very specific. You need to upload/record a driving video. Facial movements and expressions of the uploaded / recorded video will be transferred to the AI video.

Tips

Here are some tips to get the best results:

• Works best on close-up or medium shots with a clearly visible, forward-facing face
• Actor Mode gives more precise control for characters with defined appearances

Still Need Help? Reach out to us at support@atlabs.ai — we’re happy to assist you.

Updated on: 07/27/2026