AI RESEARCH
VoXtream2: Full-stream TTS with dynamic speaking rate control
arXiv CS.LG
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ArXi:2603.13518v1 Announce Type: cross Full-stream text-to-speech (TTS) for interactive systems must start speaking with minimal delay while remaining controllable as text arrives incrementally. We present VoXtream2, a zero-shot full-stream TTS model with dynamic speaking-rate control that can be updated mid-utterance on the fly. VoXtream2 combines a distribution matching mechanism over duration states with classifier-free guidance across conditioning signals to improve controllability and synthesis quality.