Author

Qi-Cong Xie

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Preprint Sep 2026

Grounded in Sound: Reinforcement Learning with a Frozen Acoustic Judge to Curb ASR Insertion Hallucinations

When reinforcement learning (RL) is used for post-training automatic speech recognition (ASR), the reward almost always lives in the text space: it compares a hypothesis with the reference and never checks whether the hypothesis is supported by the audio. On highly regular speech this licenses a shortcut - guessing fro...

Ting-Zhen Xiong, Rilin Chen, Wei-Wei Li et al. · 0 citations

#artificial intelligence Preprint Sep 2026

Modeling, Scaling, and Decoding: Optimizing Controllable Speech Generation with Nonverbal Vocalizations

Controllable synthesis of nonverbal vocalizations (NVVs) is es- sential for natural and expressive speech, but remains challeng- ing due to their acoustic diversity and imbalanced distribution in existing corpora. To address these challenges, we develop an NVV-aware DiTAR system that models continuous speech latents, e...

Zi-Yu Zhang, Yun Chen, Tai-Hui Wang et al. · 0 citations

#natural language process... Preprint Sep 2026

AuK Technical Report: An Open-Source Foundational Model for Speech Generation and Editing

AuK, an open-source foundational model that unifies speech generation and editing through a common interface of natural-language instructions and audio context, is introduced and leading performance on zero-shot and instruction-controlled speech generation and general instruction-guided editing is demonstrated.

Zi-Yang Ma, Zhi-Kang Niu, Wen-Ming Tu et al. · 2 citations · ⚡1