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The Rise of Audio AR

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  1. AV-GRPO: Modality-Anchored Decoupling Diffusion Reinforcement Learning for Joint Audio-Video Generation

    The paper presents AV‑GRPO, a diffusion‑based reinforcement‑learning framework that treats audio and video generation as separate but coordinated tasks by anchoring rollouts to each modality and freezing the opposite tower during optimization. Evaluated on the new 5DAV dataset and benchmarks, it achieves higher fidelity, better text‑modality alignment, and tighter audio‑video sync than the previo…

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