offline-voice

How the on-device narration engine (VieNeu-TTS) and voice cloning work in this system — install tiers, the worker protocol, and the verified traps around torchaudio, voice metadata parsing and duration. Read when working on Text to video narration, the Voices page, the /api/voices or /api/tts endpoints, or when a user reports that offline voices or voice cloning fail to install or sound wrong.