Author

Ke Lei

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Preprint Sep 2026

One-Stage Multi-Task Instruction-Guided 3D Spatial Audio Editing

SwanWeave is presented, the first one-stage multi-task framework for instruction-guided 3D FOA spatial audio editing, and introduces Spatial Preference Optimization (SPO), a Direct Preference Optimization (DPO)-based alignment objective with edit-specific negative targets, and adopts staged training to improve natural-...

Ke Lei, Chenyuhao Wen, Yu Zhang et al. · 1 citation · ⚡1

Preprint Aug 2026

SwanTale: Unified Multi-Speaker Speech and Audio Generation for Instruct and Zero-Shot Tasks

SwanTale is proposed, a multi-speaker expressive speech and audio generation model that supports both zero-shot and instruct tasks, and adopts reward-conditioned quality control and Engram conditioning along with Unified MoE for multi-task and multi-audio-modality modeling.

Yu Zhang, Ruiqi Li, Changhao Pan et al. · 3 citations

Preprint Aug 2026

Doc-REFRAG: Rethinking Multimodal Document Retrieval-Augmented Generation

Doc-REFRAG, a question-guided framework that compresses visual tokens into coarse chunks and selectively expands question-relevant ones via a lightweight RL-based selector, is proposed, achieving state-of-the-art accuracy with significantly lower inference latency.

Ruofan Hu, Sheng Xu, Min-Jie Hong et al. · 0 citations