Hunyuan Video Foley ComfyUI Workflow: Turn Quiet Video into Sound

i found a model called hunyuan video foley. you give it a quiet video, it makes the sound that fits: wind that pushes, fire that crackles, rocks that rumble, even a light music bed when the scene needs it.

Contents

Setup I Used
The Small Graph
What I Ran

I tried a few shots and it surprised me. i dropped in a beach clip with no audio, hit run

how I set it up in comfyui, then a few quick runs so you can hear what it does.

there isn’t an official comfyui node yet. i made a small custom one so we can test. repo: https://github.com/aistudynow/Comfyui-HunyuanFoley
the weights live on the model page: https://huggingface.co/tencent/HunyuanVideo-Foley/tree/main

Setup I Used

open ComfyUI/custom_nodes/ in a terminal, run

git clone https://github.com/aistudynow/Comfyui-HunyuanFoley.git

wait for it to finish. go into the new Custom node/HunyuanVideo-Foley folder. Open the Folder in cmd

pip install -r requirements.txt

Also

Open a terminal in G:\ComfyUI_windows_portable\:

.\python_embeded\python.exe -m pip install -r ComfyUI\custom_nodes\ComfyUI_HunyuanFoley\requirements.txt

inside the node, make a folder models/hunyuanvideo_foley/ if you don’t see it. put these four files there and keep names exact: config.yaml, hunyuanvideo_foley.pth, synchformer_state_dict.pth, vae_128d_48k.pth.

back in comfyui, set the paths in the node:
main model → hunyuanvideo_foley.pth
vae → vae_128d_48k.pth
syncformer → synchformer_state_dict.pth
config → config.yaml

if a path is wrong you’ll get a red warning. point it to the right file and you’re fine.

The Small Graph

load the video with Load Video. a short hint is enough: “ocean sound”, “burning tree”, “windy street”. match frame rate in two spots: set fps in the hunyuanvideo-foley sampler, and set the Combine Video node to the same number. so 24/24, or 30/30, etc. when it looks right, press Generate.

if your graph also rebuilds the picture and you see color flicker, leave any color-match step off on that pass. foley is only making audio; this just avoids visual shimmer if you re-encode frames.

What I Ran

ocean
quiet beach shot. hint “ocean sound”. both fps at 24. it breathes with the water instead of looping flat.

fire
a tree on fire. i typed “burning tree” and ran it. close crackle, a few pops, and it tracks the flame.

beach + thunder + music
person on a small island, dark sky. i asked for “distant thunder rumbles and crackles” and added “dramatic, intense background music”. you get low thunder in the back and a simple score that fits. both at once.