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arXiv · 2510.21581

Foley Control: Aligning a Frozen Latent Text-to-Audio Model to Video

Ciara Rowles·Varun Jampani·Simon Donné·Shimon Vainer·Julian Parker·Zach Evans
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Abstract

Foley Control is a lightweight approach to video-guided Foley that keeps pretrained single-modality models frozen and learns only a small cross-attention bridge between them. We connect V-JEPA2 video embeddings to a frozen Stable Audio Open DiT text-to-audio (T2A) model by inserting compact video cross-attention after the model's existing text cross-attention, so prompts set global semantics while video refines timing and local dynamics. The frozen backbones retain strong marginals (video; audio given text) and the bridge learns the audio-video dependency needed for synchronization -- without retraining the audio prior. To cut memory and stabilize training, we pool video tokens before conditioning. On curated video-audio benchmarks, Foley Control delivers competitive temporal and semantic alignment with far fewer trainable parameters than recent multi-modal systems, while preserving prompt-driven controllability and production-friendly modularity (swap/upgrade encoders or the T2A backbone without end-to-end retraining). Although we focus on Video-to-Foley, the same bridge design can potentially extend to other audio modalities (e.g., speech).

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Ciara Rowles, Varun Jampani, Simon Donné, Shimon Vainer, Julian Parker, Zach Evans. 2025-10-24. Foley Control: Aligning a Frozen Latent Text-to-Audio Model to Video. https://arxiv.org/abs/2510.21581

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