Why Your AI Lip Sync Looks Fake (and the Input Fixes That Help)
Dev Communityvia NewsData.io
AI lip sync takes one still image and an audio track and turns them into a talking video. The model is rarely the reason a result looks off. Most of the problems come from the inputs: the photo, the script and the audio. This post starts from the symptom. Find the one you're seeing, then fix the input behind it. Symptom: the mouth barely moves Likely cause: the face is too small in the frame. In a wide shot or a group photo, the mouth is only a few dozen pixels across, and the model has very little to work with. Fix: crop to waist-up or closer, so the face takes up a decent share of the image.
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