Audio workflow guide
AI Video Lip Sync Guide
Lip-sync is not only an audio problem. Occlusion, rapid camera moves, long dialogue and identity drift can all weaken a talking-head generation.
Framing
Medium close-up is a practical starting point.
Speech length
Short lines reduce timing pressure.
Motion
Keep head and camera movement restrained during the spoken line.
Verification
Support varies by model and provider, so test the actual route you use.