DiffRhythm Node for ComfyUI

Blazingly Fast and Embarrassingly Simple End-to-End Full-Length Song Generation.

📣 update

[2025-04-26]⚒️: Change to manually selecting to download the muq model.

[2025-03-21] ⚒️: Code refactored, ultra-fast generation speed. 4 minutes 45 seconds of music generated in less than 20 seconds, 1 minute 35 seconds of music generated in less than 7 seconds. Added more tunable parameters for more creative freedom. Optional model unloading.

[2025-03-16]⚒️: Released version v2.0.0. Supports full-length music generation, 4 minutes only takes 62 seconds.

Download the model and place it in the ComfyUI\models\TTS\DiffRhythm folder:

DiffRhythm-full Rename the model to cfm_full_model.pt, and also download comfig.json and put it together.

[2025-03-13]⚒️: Release version v1.0.0.

All parameters are optional; you can generate random music without providing any parameters.

Installation

cd ComfyUI/custom_nodes
git clone https://github.com/billwuhao/ComfyUI_DiffRhythm.git
cd ComfyUI_DiffRhythm
pip install -r requirements.txt

# python_embeded
./python_embeded/python.exe -m pip install -r requirements.txt

Model Download

The model needs to be manually downloaded to the ComfyUI\models\TTS\DiffRhythm folder.

The structure is as follows:

.
│  cfm_full_model.pt
│  cfm_model.pt
│  config.json
│  vae_model.pt
│
├─MuQ-large-msd-iter
│      config.json
│      model.safetensors
│
├─MuQ-MuLan-large
│      config.json
│      pytorch_model.bin
│
└─xlm-roberta-base
        config.json
        model.safetensors
        sentencepiece.bpe.model
        tokenizer.json
        tokenizer_config.json

https://huggingface.co/ASLP-lab/DiffRhythm-full/tree/main → cfm_full_model.pt and config.json https://huggingface.co/ASLP-lab/DiffRhythm-base/blob/main/cfm_model.pt
https://huggingface.co/ASLP-lab/DiffRhythm-vae/blob/main/vae_model.pt
https://huggingface.co/OpenMuQ/MuQ-MuLan-large/tree/main
https://huggingface.co/OpenMuQ/MuQ-large-msd-iter/tree/main
https://huggingface.co/FacebookAI/xlm-roberta-base/tree/main

Environment Configuration

Configure the following on Windows systems:

Download and install the latest version of espeak-ng

Add the environment variable PHONEMIZER_ESPEAK_LIBRARY to your system. The value should be the path to the libespeak-ng.dll file in your espeak-ng installation, for example: C:\Program Files\eSpeak NG\libespeak-ng.dll.

On Linux systems, you need to install the espeak-ng package. Execute the following command to install:

apt-get -qq -y install espeak-ng

It should support Mac, but has not been tested.

Enjoy the music! 🎶

Acknowledgements

DiffRhythm

Thanks to the DiffRhythm team for their excellent work. Currently the strongest open-source music/song generation model 👍.

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