WenetSpeech-Min: A Large-Scale Minnan Speech Corpus with Dual Transcriptions for Dialectal Speech Processing

Haoyu Zhang; Chunjiang He; Hongtao Li; Zeyu Zhu; Qituan Shangguan; Chengyou Wang; Jingbin Hu; Ziyu Zhang; Bingshen Mu; Yanbo Wang; Shuai Wang; Jinhui Ye; Chengdong Liang; Binbin Zhang; Pengcheng Zhu; Chuang Ding; Qianze Feng; Qingyang Hong; Liumeng Xue; Lei Xie

arXiv · 2609.36834

WenetSpeech-Min: A Large-Scale Minnan Speech Corpus with Dual Transcriptions for Dialectal Speech Processing

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Abstract

Progress in dialectal speech technology is hindered by the scarcity of large-scale, real-world corpora. For Minnan speech, existing resources remain limited, and few provide paired Minnan and Mandarin transcripts at scale. To address these gaps, we introduce WenetSpeech-Min, an open-source corpus comprising around 10,000 hours of Minnan speech collected from diverse online media, with paired Minnan and Mandarin transcripts for every utterance. We further establish an automatic speech recognition (ASR) benchmark covering both Minnan and Mandarin transcripts and a text-to-speech synthesis (TTS) benchmark using Minnan transcripts, with manually verified evaluation sets for both tasks. To assess the effectiveness of the corpus, we train ASR and TTS models on WenetSpeech-Min and compare them with representative systems on the proposed benchmarks. The resulting models outperform the evaluated open-source models on most metrics and achieve competitive performance against commercial systems. We will release the corpus, benchmarks, and models to facilitate reproducible research on Minnan speech technology.

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Haoyu Zhang, Chunjiang He, Hongtao Li, Zeyu Zhu, Qituan Shangguan, Chengyou Wang, Jingbin Hu, Ziyu Zhang, Bingshen Mu, Yanbo Wang, Shuai Wang, Jinhui Ye, Chengdong Liang, Binbin Zhang, Pengcheng Zhu, Chuang Ding, Qianze Feng, Qingyang Hong, Liumeng Xue, Lei Xie. 2026-09-29. WenetSpeech-Min: A Large-Scale Minnan Speech Corpus with Dual Transcriptions for Dialectal Speech Processing. https://arxiv.org/abs/2609.36834

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