How talking photos work
The engine turns the audio into mouth shapes and facial motion, then animates your portrait frame by frame to match — adding blinks and head movement so it doesn't look frozen. ByteDance's OmniHuman animates a single image from audio, video or both, from portrait to full body.
Talking photo vs AI presenter
A talking photo animates your own picture. HeyGen-style presenters use a stock avatar instead — Kenerate's HeyGen Avatar engine offers 500 of them, so you only need the audio.
Photo checklist
D-ID recommends a camera-facing medium shot with a neutral expression and mouth closed, the face at least 200 × 200 px, and nothing covering it. The same rules help every engine.







