Papers › SkyReels-Audio: Omni Audio-Conditioned Talking Portraits in Video Diffusion Transformers

SkyReels-Audio: Omni Audio-Conditioned Talking Portraits in Video Diffusion Transformers

1 Jun 2025arXiv:2506.00830archive 2025-07-28

Zhengcong Fei, Hao Jiang, Di Qiu, Baoxuan Gu, Youqiang Zhang, Jiahua Wang, Jialin Bai, Debang Li, Mingyuan Fan, Guibin Chen, Yahui Zhou

The generation and editing of audio-conditioned talking portraits guided by multimodal inputs, including text, images, and videos, remains under explored. In this paper, we present SkyReels-Audio, a unified framework for synthesizing high-fidelity and temporally coherent talking portrait videos. Built upon pretrained video diffusion transformers, our framework supports infinite-length generation and editing, while enabling diverse and controllable conditioning through multimodal inputs. We employ a hybrid curriculum learning strategy to progressively align audio with facial motion, enabling fine-grained multimodal control over long video sequences. To enhance local facial coherence, we introduce a facial mask loss and an audio-guided classifier-free guidance mechanism. A sliding-window denoising approach further fuses latent representations across temporal segments, ensuring visual fidelity and temporal consistency across extended durations and diverse identities. More importantly, we construct a dedicated data pipeline for curating high-quality triplets consisting of synchronized audio, video, and textual descriptions. Comprehensive benchmark evaluations show that SkyReels-Audio achieves superior performance in lip-sync accuracy, identity consistency, and realistic facial dynamics, particularly under complex and challenging conditions.

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SkyworkAI/SkyReels-A1 mentioned on GitHubpytorch report
skyworkai/skyreels-a2 mentioned on GitHubpytorchNOASSERTION report
skyworkai/skyreels-v2 mentioned on GitHubpytorchNOASSERTION report

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Denoising

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ALIGNDiffusion

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