WenetSpeech-Chuan: A Large-Scale Sichuanese Corpus with Rich Annotation for Dialectal Speech Processing
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| Format: | Preprint |
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2025
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| _version_ | 1866908552686206976 |
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| author | Dai, Yuhang Zhang, Ziyu Wang, Shuai Li, Longhao Guo, Zhao Zuo, Tianlun Wang, Shuiyuan Xue, Hongfei Wang, Chengyou Wang, Qing Xu, Xin Bu, Hui Li, Jie Kang, Jian Zhang, Binbin Xie, Lei |
| author_facet | Dai, Yuhang Zhang, Ziyu Wang, Shuai Li, Longhao Guo, Zhao Zuo, Tianlun Wang, Shuiyuan Xue, Hongfei Wang, Chengyou Wang, Qing Xu, Xin Bu, Hui Li, Jie Kang, Jian Zhang, Binbin Xie, Lei |
| contents | The scarcity of large-scale, open-source data for dialects severely hinders progress in speech technology, a challenge particularly acute for the widely spoken Sichuanese dialects of Chinese. To address this critical gap, we introduce WenetSpeech-Chuan, a 10,000-hour, richly annotated corpus constructed using our novel Chuan-Pipeline, a complete data processing framework for dialectal speech. To facilitate rigorous evaluation and demonstrate the corpus's effectiveness, we also release high-quality ASR and TTS benchmarks, WenetSpeech-Chuan-Eval, with manually verified transcriptions. Experiments show that models trained on WenetSpeech-Chuan achieve state-of-the-art performance among open-source systems and demonstrate results comparable to commercial services. As the largest open-source corpus for Sichuanese dialects, WenetSpeech-Chuan not only lowers the barrier to research in dialectal speech processing but also plays a crucial role in promoting AI equity and mitigating bias in speech technologies. The corpus, benchmarks, models, and receipts are publicly available on our project page. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_18004 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | WenetSpeech-Chuan: A Large-Scale Sichuanese Corpus with Rich Annotation for Dialectal Speech Processing Dai, Yuhang Zhang, Ziyu Wang, Shuai Li, Longhao Guo, Zhao Zuo, Tianlun Wang, Shuiyuan Xue, Hongfei Wang, Chengyou Wang, Qing Xu, Xin Bu, Hui Li, Jie Kang, Jian Zhang, Binbin Xie, Lei Computation and Language Sound The scarcity of large-scale, open-source data for dialects severely hinders progress in speech technology, a challenge particularly acute for the widely spoken Sichuanese dialects of Chinese. To address this critical gap, we introduce WenetSpeech-Chuan, a 10,000-hour, richly annotated corpus constructed using our novel Chuan-Pipeline, a complete data processing framework for dialectal speech. To facilitate rigorous evaluation and demonstrate the corpus's effectiveness, we also release high-quality ASR and TTS benchmarks, WenetSpeech-Chuan-Eval, with manually verified transcriptions. Experiments show that models trained on WenetSpeech-Chuan achieve state-of-the-art performance among open-source systems and demonstrate results comparable to commercial services. As the largest open-source corpus for Sichuanese dialects, WenetSpeech-Chuan not only lowers the barrier to research in dialectal speech processing but also plays a crucial role in promoting AI equity and mitigating bias in speech technologies. The corpus, benchmarks, models, and receipts are publicly available on our project page. |
| title | WenetSpeech-Chuan: A Large-Scale Sichuanese Corpus with Rich Annotation for Dialectal Speech Processing |
| topic | Computation and Language Sound |
| url | https://arxiv.org/abs/2509.18004 |