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ThinkSound

⭐ 1321 stars English by FunAudioLLM

ThinkSound

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NeurIPS 2025   arXiv   Online Demo   Hugging Face   ModelScope

If you find this project useful,
a star ⭐ on GitHub would be greatly appreciated!

Repository layout

This ThinkSound GitHub repository hosts two related projects on separate branches:

| Branch | Project | Documentation | |--------|---------|----------------| | master | ThinkSound (NeurIPS 2025) — unified Any2Audio generation with CoT-guided flow matching | This file: README.md | | prismaudio | PrismAudio — follow-up work (ICLR 2026) on video-to-audio with multi-dimensional CoT-RL | README.md on the prismaudio branch |

For ThinkSound, use branch master (this README). For PrismAudio, check out prismaudio and follow README.md there.

ThinkSound is a unified Any2Audio generation framework with flow matching guided by Chain-of-Thought (CoT) reasoning.

PyTorch implementation for multimodal audio generation and editing: generate or edit audio from video, text, and audio, powered by step-by-step reasoning from Multimodal Large Language Models (MLLMs).

Teaser

📰 News

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Follow-up: PrismAudio (same repo, prismaudio branch)

PrismAudio is the successor to ThinkSound (ICLR 2026), developed under a new name but retained in this repository on the prismaudio branch. Installation, checkpoints, and citation can be found in README.md on that branch.

👉 git checkout prismaudio or open the branch on GitHub.

🚀 Features

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✨ Method Overview

ThinkSound decomposes audio generation and editing into three interactive stages, all guided by MLLM-based Chain-of-Thought (CoT) reasoning:

ThinkSound Overview

⚡ Quick Start

Environment Preparation: 

# ThinkSound code: branch master. PrismAudio: clone with -b prismaudio (see README.md on that branch).
git clone -b master https://github.com/liuhuadai/ThinkSound.git
cd ThinkSound
conda create -n thinksound python=3.10
conda activate thinksound
pip install thinksound
conda install -y -c conda-forge 'ffmpeg<7'

Download pretrained weights https://huggingface.co/liuhuadai/ThinkSound to Directory ckpts/


model weights can be also downloaded from https://www.modelscope.cn/models/iic/ThinkSound

git lfs install
git clone https://huggingface.co/liuhuadai/ThinkSound ckpts

To improve inference and training speed, you may optionally install a FlashAttention backend compatible with your system and PyTorch version.
✅ Windows Tip:
Windows users can simply run setup_windows.bat (or double-click it) to automatically create the conda environment, install all dependencies (including FFmpeg), and download the pretrained model — no manual setup required.
Make sure conda and git are installed and available in your system PATH before running the script.

▶️ Run the Demo

#### Linux/macOS

chmod +x scripts/demo.sh
./scripts/demo.sh   <CoT description> [use-half]</code></pre>
#### <strong>Windows</strong></p><p>You can use the provided <code>.bat</code> script instead:</p><pre><code class="language-bash">.\scripts\demo.bat <path-to-your-demo-video> <title> <CoT description> [use-half]</code></pre>
<strong>Note:</strong></p><ul><li><code><path-to-your-demo-video></code>: The path to a single video</li>
<li><code>[use-half]</code> (optional): Add use-half at the end to enable half precision feature extraction.</li></p><p></ul>---</p><h3>📦 Batch Inference</h3></p><p>#### <strong>Linux/macOS</strong></p><pre><code class="language-bash">chmod +x scripts/eval_batch.sh
./scripts/eval_batch.sh <video_path> <csv_path> <save_path (optional)> [use-half]</code></pre>
#### <strong>Windows</strong></p><p>Use the corresponding <code>.bat</code> script:</p><pre><code class="language-bash">.\scripts\eval_batch.bat <video_path> <csv_path> <save_path (optional)> [use-half]</code></pre>
<strong>Note:</strong></p><ul><li><code><video_path></code>: Path to the root directory containing all .mp4 videos to be processed (all videos must be of equal duration).</li>
<li><code><csv_path></code>: A CSV file with text prompts for each video (see <code>demo_test.csv</code> for format).</li>
<li><code><save_path></code> (optional): Where to save generated audio. Defaults to <code>results/features</code>.</li>
<li><code>[use-half]</code> (optional): Add use-half at the end to enable half precision feature extraction.</li></p><p></ul>---</p><h3>Web Interface Usage</h3></p><p>For an interactive experience, launch the Gradio web interface:</p><pre><code class="language-bash">python app.py</code></pre>
<h2>🏋️ Train the Model</h2></p><p>See <a href="https://raw.githubusercontent.com/FunAudioLLM/ThinkSound/master/docs/Training.md" target="_blank" rel="noopener noreferrer"><code>Training.md</code></a></p><hr></p><h2>📄 License</h2></p><p>This project is released under the Apache 2.0 License.</p><blockquote><strong>Note:</strong></blockquote>
<blockquote>The code, models, and dataset are <strong>for research and educational purposes only</strong>.</blockquote>
<blockquote><strong>Commercial use is NOT permitted.</strong></blockquote>
<blockquote>For commercial licensing, please contact the authors.</blockquote></p><p><strong>📦 Third-Party Components</strong></p><ul><li><strong>Stable Audio Open VAE</strong> (by Stability AI):</li>
  </ul>This repository includes a fine-tuned VAE from <a href="https://huggingface.co/stabilityai/stable-audio-open-1.0/" target="_blank" rel="noopener noreferrer">Stable Audio Open</a>, licensed under the <a href="https://raw.githubusercontent.com/FunAudioLLM/ThinkSound/master/./third_party/LICENSE_StabilityAI.md" target="_blank" rel="noopener noreferrer">Stability AI Community License</a>.
  <strong>Commercial use and redistribution require prior permission from Stability AI.</strong></p><ul><li>📘 <strong>All other code and models</strong> are released under the Apache License 2.0.</li></p><p></ul>---</p><h2>Acknowledgements</h2></p><p>Many thanks to:</p><ul><li><strong>stable-audio-tools</strong> (by Stability AI):</li>
</ul>For providing an easy-to-use framework for audio generation, as well as the VAE module and weights.
<ul><li><strong>MMAudio</strong>:</li>
  </ul>For the implementation of the MM-DiT backbone in the audio domain.</p><hr></p><h2>📖 Citation</h2></p><p>If you find our project useful in your research or work, please cite our paper:</p><pre><code class="language-bibtex">@misc{liu2025thinksoundchainofthoughtreasoningmultimodal,
      title={ThinkSound: Chain-of-Thought Reasoning in Multimodal Large Language Models for Audio Generation and Editing}, 
      author={Huadai Liu and Jialei Wang and Kaicheng Luo and Wen Wang and Qian Chen and Zhou Zhao and Wei Xue},
      year={2025},
      eprint={2506.21448},
      archivePrefix={arXiv},
      primaryClass={eess.AS},
      url={https://arxiv.org/abs/2506.21448}, 
}
@misc{liu2025prismaudiodecomposedchainofthoughtsmultidimensional,
          title={PrismAudio: Decomposed Chain-of-Thoughts and Multi-dimensional Rewards for Video-to-Audio Generation}, 
          author={Huadai Liu and Kaicheng Luo and Wen Wang and Qian Chen and Peiwen Sun and Rongjie Huang and Xiangang Li and Jieping Ye and Wei Xue},
          year={2025},
          eprint={2511.18833},
          archivePrefix={arXiv},
          primaryClass={cs.SD},
          url={https://arxiv.org/abs/2511.18833}, 
    }</code></pre></p><hr></p><h2>📬 Contact</h2></p><p>
✨ Feel free to <a href="https://github.com/liuhuadai/ThinkSound/issues" target="_blank" rel="noopener noreferrer">open an issue</a> or contact us via email (<a href="https://raw.githubusercontent.com/FunAudioLLM/ThinkSound/master/mailto:liuhuadai@zju.edu.cn" target="_blank" rel="noopener noreferrer">liuhuadai@zju.edu.cn</a>) if you have any questions or suggestions!</p><p>


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Tranlated By <a href="https://github.com/OpenAiTx/OpenAiTx" target="_blank" rel="noopener noreferrer">Open Ai Tx</a> | Last indexed: 2026-04-20


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            <strong>Original README:</strong> <a href="https://raw.githubusercontent.com/FunAudioLLM/ThinkSound/master/README.md" target="_blank" rel="noopener noreferrer">View on GitHub</a>
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        <p>Translated by <a href="https://github.com/OpenAiTx/OpenAiTx" target="_blank" rel="noopener noreferrer">OpenAiTx</a> | 
        Last updated: 2026-04-20 
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