Author

Zhi-Sheng Zheng

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Preprint Sep 2026

Voices as Handles: Reasoning about Speaker Identity with Frozen Text LLMs

Multi-user voice agents must track who said what across dialogue sessions. Text LLMs are attractive backbones for such agents, but transcripts alone do not expose acoustic speaker identity, leaving the model without a persistent reference for linking information to speakers across sessions. We address this gap by intro...

Run-Qiu Xu, Zhi-Sheng Zheng, David Harwath · 0 citations

Preprint Aug 2026

CtrlSpeech: Coarse-to-Fine Control for Expressive Speech Synthesis

Recent Text-To-Speech (TTS) systems have achieved strong naturalness and zero-shot voice cloning performance, but fine-grained control of expressive speech at the word or phoneme level remains challenging. We propose CtrlSpeech, a controllable, expressive TTS framework with coarse-to-fine control. Built on the DiTAR ar...

Zhi-Sheng Zheng, Xiaohang Sun, Zhu Liu et al. · 0 citations