OpenDialog

OpenDialog is a 6.8k hours spoken dialogue dataset, introduced in the paper ZipVoice-Dialog: Non-Autoregressive Spoken Dialogue Generation with Flow Matching.

• Paper: https://arxiv.org/abs/2507.09318
• GitHub: https://github.com/k2-fsa/ZipVoice
• Project Page: https://zipvoice-dialog.github.io

OpenDialog is the first large-scale (6.8k hours) open-source spoken dialogue dataset derived from in-the-wild speech data. It consists of:

• English data: 5074 hours
• Chinese data: 1759 hours

This dataset is also available at ModelScope (more friendly for users from China mainland).

Citation

@article{zhu2025zipvoicedialog,
      title={ZipVoice-Dialog: Non-Autoregressive Spoken Dialogue Generation with Flow Matching},
      author={Zhu, Han and Kang, Wei and Guo, Liyong and Yao, Zengwei and Kuang, Fangjun and Zhuang, Weiji and Li, Zhaoqing and Han, Zhifeng and Zhang, Dong and Zhang, Xin and Song, Xingchen and Lin, Long and Povey, Daniel},
      journal={arXiv preprint arXiv:2507.09318},
      year={2025}
}