Author

Xu-Gang Lu

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Preprint Aug 2026

Grounded Decoding for Autoregressive Speech Enhancement via Adaptive Code-Space Grounding and Local LLM Refinement

An evidence-grounded generative SE framework that uses a deterministic estimate as imperfect evidence as imperfect evidence is proposed and SNR-Conditioned CSG (SNR-CSG), which maps a calibrated residual-SNR estimate to an utterance-level strength and constructs an adaptive grounded anchor is introduced.

Hao Shi, Yuan Gao, Zhao-Heng Ni et al. · 0 citations

Jul 2026

Optimal Transport-based Semantic Alignment for LLM-based Audio-Visual Speech Recognition

An optimal transport (OT)-based semantic alignment framework for LLM-AVSR is proposed, which explicitly bridges the modality gap by aligning the acoustic and visual representations with reference to the linguistic embedding space of the LLM before multimodal fusion.

Xu-Gang Lu, Peng Shen, Yu Tsao et al. · arXiv.org · 0 citations