AI Lip Sync Video Generator
Lip sync AI bridges the gap between video footage and new audio — whether you're dubbing a product presenter into a second language, replacing a script without a reshoot, or creating a talking avatar from a still image. Oakgen's lipsync tool aligns mouth movement to any audio track, producing natural facial animation that matches the delivery.
Best models for this job
Oakgen selects the right model automatically, but knowing which one fits the job helps you write better prompts and get better results.
Lip Sync (AI Lipsync)
Aligns mouth movement frame-by-frame to match a target audio track
Talking Photo
Combines still-image animation with lip sync for presenter creation
ElevenLabs v3
Generates the audio track to sync to — voice cloning and multilingual TTS
Step-by-step workflow
Every step runs in one Oakgen workspace — one credit balance, no tab-switching.
Upload the source video — talking head, avatar clip, or animated character
Generate or upload the new audio: either record, upload, or generate with ElevenLabs
Run the lip sync tool — facial landmark detection and mouth animation generate automatically
Preview the output; adjust sync timing if specific words are slightly off
Export and combine with the rest of your video in your editor
For localization, generate the dubbed audio in each target language and run lip sync per language
Frequently asked questions
What is AI lip sync video?
AI lip sync maps mouth movement in an existing video to match a new audio track. The technology detects facial landmarks and re-renders mouth and jaw animation in sync with the new speech, without changing the rest of the face or video.
Can I lip sync a video to a different language?
Yes. Generate a dubbed voiceover in the target language with ElevenLabs v3, then run the lip sync tool to match the video's facial movement to the dubbed audio. This is the core workflow for video localization without reshoots.
What video types work best for AI lip sync?
Talking-head videos with a clear, well-lit face facing the camera work best. Videos with partial face angles, fast motion, or multiple speakers in frame are harder to sync accurately.
Can I lip sync a generated avatar, not just a real person?
Yes. Generated portraits animated with Talking Photo can then pass through the lipsync tool for additional audio layers or resynchronization. This is the common workflow for AI presenter videos.
How accurate is AI lip sync on Oakgen?
For clear, forward-facing talking-head footage with clean audio, lip sync accuracy is suitable for ad and social use. Edge cases — fast speech, accents with unusual mouth shapes, or heavily compressed source video — may produce minor misalignments that are usually acceptable for social formats.
One credit balance covers every tool
Credits are shared across image, video, voice, and music generation. Simple images use fewer credits; premium video uses more. The exact cost is shown before generation. Plans start at $9/month.