About

HunyuanVideo-Foley is a professional-grade video sound effect generation model developed by Tencent Hunyuan team, achieving high-fidelity sound effect synthesis through multimodal diffusion alignment technology. Designed specifically for video creators, it automatically generates synchronized, realistic Foley audio based on video frames plus text descriptions, making it suitable for film and television production, game development, advertising creative work, and more.

Key Features

**Multi-scene audiovisual synchronization: ** Generated sound effects align precisely with complex video frames, including object motion and physical interaction details. For example, footsteps sync with a character's stride, and breaking sounds match the exact moment glass shatters.

**Multimodal semantic balancing: ** Simultaneously analyzes visual frames and text descriptions, intelligently fusing information from both modalities. The system avoids single-modality dominance to achieve global coordination of sound elements—such as balancing rain and wind sounds for a "stormy weather" prompt.

**48kHz high-fidelity output: ** A proprietary audio VAE model supports 48kHz sampling rate, preserving sound details like metallic overtones and ambient reverb. Professional-grade audio quality meets the demands of film and music production.

**Hybrid architecture design: ** Combines a multimodal Transformer for processing video-audio joint feature streams, a single-modality Transformer focused on optimizing audio generation quality, and a Synchformer module that achieves frame-level temporal synchronization through gated modulation.

Pricing & Fees

Pricing: Not publicly listed on the pages we reviewed; check the official site for current plans.
Free access: The model is released as an open-source project on GitHub, with model weights available on HuggingFace.
Research transparency: The accompanying paper is published as arXiv:2508.16930.
Community support: Development and issues are tracked via the public GitHub repository.

Who It's For

HunyuanVideo-Foley is built for professional media creation teams and individual creators who need high-quality, synchronized sound effects without manual Foley recording. It is particularly well-suited for short video creators looking to enrich vlogs with ambient audio, film and TV post-production teams seeking to cut costs, game developers needing real-time dynamic soundscapes, and advertising professionals who want to quickly synthesize product demonstration sounds like engine startups. Note that the tool requires a GPU with at least 24GB VRAM (RTX 3090/4090 recommended), CUDA 12.4/11.8, Python 3.8+, and prefers Linux systems—making it ideal for studios with dedicated rendering workstations.

About

Key Features

Pricing & Fees

Who It's For

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