Chatterbox-Flash: Prior-Calibrated Block Diffusion for Streaming Zero-Shot TTS 事件

Chatterbox-Flash: Prior-Calibrated Block Diffusion for Streaming Zero-Shot TTS arXiv:2605.30748v1 Announce Type: cross Abstract: We present Chatterbox-Flash, a zero-shot text-to-speech model obtained by fine-tuning a pretrained autoregressive TTS decoder into a block-diffusion decoder, enabling parallel token generation within each block while retaining block-by-block streaming. We find that naively transferring mainstream block-diffusion decoding to discrete speech tokens degrades quality, as