Concepts — bitHuman docs

Concepts

The mental model behind bitHuman — one engine, one .imx format, one push/drain loop, two avatar models.

Core

The self-contained file that packages an avatar — where it comes from and how to inspect it.

The push/drain pattern every SDK shares — PCM in, lip-synced 25 FPS frames out.

From a face and voice to a live talking avatar — generate, poll, resolve, drive.

The two avatar models — what each does, where each runs, which to pick.

The libessence engine, the SDKs that wrap it, and the ABI + hardware matrices.