AADiff: Audio-Aligned Video Synthesis with Text-to-Image Diffusion

• URL: http://arxiv.org/abs/2305.04001v2
• Date: Tue, 23 May 2023 06:59:30 GMT
• Title: AADiff: Audio-Aligned Video Synthesis with Text-to-Image Diffusion
• Authors: Seungwoo Lee, Chaerin Kong, Donghyeon Jeon, Nojun Kwak
• Abstract summary: We introduce a novel T2V framework that additionally employ audio signals to control the temporal dynamics. We propose audio-based regional editing and signal smoothing to strike a good balance between the two contradicting desiderata of video synthesis.
• Score: 27.47320496383661
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Recent advances in diffusion models have showcased promising results in the text-to-video (T2V) synthesis task. However, as these T2V models solely employ text as the guidance, they tend to struggle in modeling detailed temporal dynamics. In this paper, we introduce a novel T2V framework that additionally employ audio signals to control the temporal dynamics, empowering an off-the-shelf T2I diffusion to generate audio-aligned videos. We propose audio-based regional editing and signal smoothing to strike a good balance between the two contradicting desiderata of video synthesis, i.e., temporal flexibility and coherence. We empirically demonstrate the effectiveness of our method through experiments, and further present practical applications for contents creation.

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