JAM-Flow: Joint Audio-Motion Synthesis with Flow Matching

Fuente: arXiv
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Main Authors: Kwon, Mingi, Shin, Joonghyuk, Jung, Jaeseok, Park, Jaesik, Uh, Youngjung
Format: Preprint
Published: 2025
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author Kwon, Mingi
Shin, Joonghyuk
Jung, Jaeseok
Park, Jaesik
Uh, Youngjung
author_facet Kwon, Mingi
Shin, Joonghyuk
Jung, Jaeseok
Park, Jaesik
Uh, Youngjung
contents The intrinsic link between facial motion and speech is often overlooked in generative modeling, where talking head synthesis and text-to-speech (TTS) are typically addressed as separate tasks. This paper introduces JAM-Flow, a unified framework to simultaneously synthesize and condition on both facial motion and speech. Our approach leverages flow matching and a novel Multi-Modal Diffusion Transformer (MM-DiT) architecture, integrating specialized Motion-DiT and Audio-DiT modules. These are coupled via selective joint attention layers and incorporate key architectural choices, such as temporally aligned positional embeddings and localized joint attention masking, to enable effective cross-modal interaction while preserving modality-specific strengths. Trained with an inpainting-style objective, JAM-Flow supports a wide array of conditioning inputs-including text, reference audio, and reference motion-facilitating tasks such as synchronized talking head generation from text, audio-driven animation, and much more, within a single, coherent model. JAM-Flow significantly advances multi-modal generative modeling by providing a practical solution for holistic audio-visual synthesis. project page: https://joonghyuk.com/jamflow-web
format Preprint
id arxiv_https___arxiv_org_abs_2506_23552
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle JAM-Flow: Joint Audio-Motion Synthesis with Flow Matching
Kwon, Mingi
Shin, Joonghyuk
Jung, Jaeseok
Park, Jaesik
Uh, Youngjung
Computer Vision and Pattern Recognition
Sound
Audio and Speech Processing
The intrinsic link between facial motion and speech is often overlooked in generative modeling, where talking head synthesis and text-to-speech (TTS) are typically addressed as separate tasks. This paper introduces JAM-Flow, a unified framework to simultaneously synthesize and condition on both facial motion and speech. Our approach leverages flow matching and a novel Multi-Modal Diffusion Transformer (MM-DiT) architecture, integrating specialized Motion-DiT and Audio-DiT modules. These are coupled via selective joint attention layers and incorporate key architectural choices, such as temporally aligned positional embeddings and localized joint attention masking, to enable effective cross-modal interaction while preserving modality-specific strengths. Trained with an inpainting-style objective, JAM-Flow supports a wide array of conditioning inputs-including text, reference audio, and reference motion-facilitating tasks such as synchronized talking head generation from text, audio-driven animation, and much more, within a single, coherent model. JAM-Flow significantly advances multi-modal generative modeling by providing a practical solution for holistic audio-visual synthesis. project page: https://joonghyuk.com/jamflow-web
title JAM-Flow: Joint Audio-Motion Synthesis with Flow Matching
topic Computer Vision and Pattern Recognition
Sound
Audio and Speech Processing
url https://arxiv.org/abs/2506.23552