NetEase Youdao open-sources Confucius4-TTS, a TTS speech synthesis engine.

NetEase Youdao has released the open-source TTS model Confucius4-TTS. The model achieves three major breakthroughs: 3-second zero-sample speech cloning, accent-free synthesis across 14 languages, and emotion and prosody transfer. The model's underlying architecture employs an end-to-end structure of speech encoder + large language model + stream matching generation, with a full 54GB of weights supporting local offline deployment.