Datasets | Mozilla Data Collective

Common Voice

Common Voice Scripted Speech 27.0 - Taiwanese (Minnan)

A collection of read speech recordings in Taiwanese (Minnan).

License: CC0-1.0

Locale: nan-tw

Task: ASR

Format: MP3

Size: 471.51 MB

Common Voice

Common Voice Scripted Speech 27.0 - Chinese (Taiwan)

A collection of read speech recordings in Chinese (Taiwan).

License: CC0-1.0

Locale: zh-TW

Task: ASR

Format: MP3

Size: 2.96 GB

MDC DatasetsCompensated

🚧 Southeast Asian Cantonese TTS dataset 🚧

2 hours of studio-quality, deliberate, read speech and corresponding text in Southeast Asian Cantonese, from a single speaker.

License: MDC DLA-1.0

Locale: yue

Task: TTS

Format: WAV, TSV

Size: 202 B

MDC Curators

Common Voice Scripted Speech 26.0 - Wu Chinese

Chinese Common Voice scripted speech 26.0 segment of Wu Chinese accents.

License: CC0-1.0

Locale: zh-CN-shanghai

Task: ASR

Format: MP3, TSV

Size: 191.22 MB

MDC Curators

Common Voice Scripted Speech 26.0 - Beijing Chinese

Chinese Common Voice scripted speech 26.0 segment of Beijing Chinese accents.

License: CC0-1.0

Locale: zh-CN-beijing

Task: ASR

Format: MP3, TSV

Size: 113.39 MB

MDC DatasetsCompensated

🚧 Southeast Asian Hokkien TTS dataset 🚧

2 hours of studio-quality, deliberate, read speech from a single speaker of Southeast Asian Hokkien.

License: MDC DLA-1.0

Locale: nan

Task: TTS

Format: WAV, TSV

Size: 194 B

Common Voice

Common Voice Spontaneous Speech 5.0 - Chinese (China)

A collection of spontaneous responses to questions in Chinese (China).

License: CC0-1.0

Locale: zh-CN

Task: ASR

Format: MP3

Size: 121.91 KB

Common Voice

Common Voice Scripted Speech 27.0 - Cantonese

A collection of read speech recordings in Cantonese.

License: CC0-1.0

Locale: yue

Task: ASR

Format: MP3

Size: 5.99 GB

Common Voice

Common Voice Scripted Speech 27.0 - Chinese (China)

A collection of read speech recordings in Chinese (China).

License: CC0-1.0

Locale: zh-CN

Task: ASR

Format: MP3

Size: 21.40 GB

Common Voice

Common Voice Scripted Speech 27.0 - Chinese (Hong Kong)

A collection of read speech recordings in Chinese (Hong Kong).

License: CC0-1.0

Locale: zh-HK

Task: ASR

Format: MP3

Size: 3.43 GB

OpenCSG

smoltalk-chinese

SmolTalk-Chinese: A multi-task Chinese conversational dataset covering 19 typical dialogue task scenarios.

License: Apache-2.0

Locale: zh

Task: LLM

Format: parquet

Size: 879.81 MB

Common Voice

Common Voice Scripted Speech 27.0 - Paiwan

A collection of read speech recordings in Paiwan.

License: CC0-1.0

Locale: pwn

Task: ASR

Format: MP3

Size: 281.77 MB

MDC Curators

CoVoST 2 Chinese (China) - English

The dataset includes audio files in Chinese (China) and their translations in English.

License: CC-BY-NC-4.0

Locale: zh-CN, en

Task: MT

Format: MP3, TSV

Size: 713.86 MB

MDC DatasetsCompensated

🚧 Southeast Asian Malay TTS dataset 🚧

2 hours of studio-quality, deliberate, read speech and corresponding text from a single speaker of Southeast Asian Malay.

License: MDC DLA-1.0

Locale: ms

Task: TTS

Format: WAV, TSV

Size: 194 B

OpenCSG

chinese-cosmopedia

A large-scale high-quality Chinese text dataset developed by OpenCSG, containing ~15 million entries (≈60B tokens) covering multi-domain content (encyclopedia, education, etc.). Cleaned and deduplicated to remove low-quality content, it is optimized for large language model pretraining, text generation, and other Chinese NLP downstream tasks, compatible with mainstream toolchains (Hugging Face Datasets, PyTorch).

License: Apache-2.0

Locale: zh

Task: LLM

Format: parquet

Size: 6.09 GB

AImpower.org

Mandarin Stuttered Speech (StammerTalk)

The StammerTalk dataset contains 43 hours of spontenous conversations and reading of voice commands by 66 Mandarin Chinese speakers who stutter.

License: CC-BY-NC-SA-4.0

Locale: cn

Task: ASR

Format: WAV, TXT

Size: 4.61 GB

OpenCSG

Finweb-Edu-Chinese-v2.2

Fineweb-Edu-Chinese v2.2: Updated Chinese educational web dataset (Fineweb series) — access via www.opencsg.com.

License: Apache-2.0

Locale: zh

Task: LLM

Format: parquet

Size: 624.68 MB

MDC DatasetsCompensated

🚧 Southeast Asian Tamil TTS Dataset 🚧

2 hours of studio-quality, deliberate, read speech and corresponding text from a single speaker of Southeast Asian Tamil.

License: MDC DLA-1.0

Locale: ta

Task: TTS

Format: WAV, TSV

Size: 193 B

MDC Curators

CoVoST 2 English - Chinese (China)

The dataset includes audio files in English and their translations in Chinese (China).

License: CC-BY-NC-4.0

Locale: en, zh-CN

Task: MT

Format: MP3, TSV

Size: 12.56 GB

Open Home Foundation

Chitwan 1.0

Text to speech dataset for Nepali, male speaker, approximately 1 hour of read speech.

License: CC0-1.0

Locale: ne-NE

Task: TTS

Format: WEBM

Size: 61.68 MB

MirasAI

Associated Press Pakistan 1.8 Million Chinese Corpus

A Chinese-language corpus of about 1.8 million Associated Press Pakistan news articles, useful for NLP and language model training.

License: CC-BY-NC-SA-4.0

Locale: zho

Task: NLP

Format: TXT

Size: 2.76 MB

Open Home Foundation

Lili 1.0

Text to speech dataset for Slovak, female speaker, approximately 2 hours of read speech.

License: CC0-1.0

Locale: sk-SK

Task: TTS

Format: WEBM

Size: 72.38 MB

MDC DatasetsCompensated

Singaporean Tamil Speech Collection

A collection of 40 hours of high-quality, audio recordings and verified transcriptions for Singaporean Tamil

License: MDC-DLA 1.0

Locale: ta-SG

Task: TTS

Format: WAV, TSV

Size: 8.47 GB

Common Voice

Common Voice Spontaneous Speech 5.0 - Thai

A collection of spontaneous responses to questions in Thai.

License: CC0-1.0

Locale: th

Task: ASR

Format: MP3

Size: 1.58 MB

All Datasets

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Common Voice Scripted Speech 27.0 - Taiwanese (Minnan)

Common Voice Scripted Speech 27.0 - Chinese (Taiwan)

🚧 Southeast Asian Cantonese TTS dataset 🚧

Common Voice Scripted Speech 26.0 - Wu Chinese

Common Voice Scripted Speech 26.0 - Beijing Chinese

🚧 Southeast Asian Hokkien TTS dataset 🚧

Common Voice Spontaneous Speech 5.0 - Chinese (China)

Common Voice Scripted Speech 27.0 - Cantonese

Common Voice Scripted Speech 27.0 - Chinese (China)

Common Voice Scripted Speech 27.0 - Chinese (Hong Kong)

smoltalk-chinese

Common Voice Scripted Speech 27.0 - Paiwan

CoVoST 2 Chinese (China) - English

🚧 Southeast Asian Malay TTS dataset 🚧

chinese-cosmopedia

Mandarin Stuttered Speech (StammerTalk)

Finweb-Edu-Chinese-v2.2

🚧 Southeast Asian Tamil TTS Dataset 🚧

CoVoST 2 English - Chinese (China)

Chitwan 1.0

Associated Press Pakistan 1.8 Million Chinese Corpus

Lili 1.0

Singaporean Tamil Speech Collection

Common Voice Spontaneous Speech 5.0 - Thai