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💎 A list of accessible speech corpora for ASR, TTS, and other Speech Technologies
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| 2026-07-24 | 1397 |
| 2026-07-25 | 1397 |
| 2026-07-28 | 1398 |
| 2026-07-30 | 1398 |
| 2026-08-06 | 1398 |
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# 💎 Open Speech Corpora A list of open speech corpora for Speech Technology research and development. This list has a preference for free (i.e. no $ cost) and truly open corpora (e.g. released under a [Creative Commons license](https://en.wikipedia.org/wiki/Creative_Commons_license) or a [Community Data License Agreement](https://en.wikipedia.org/wiki/Linux_Foundation#Community_Data_License_Agreement_%28CDLA%29)). Not all these corpora may meet those criteria, but all the following corpora are accessible and usable for research and/or commercial use. Feel free to propse additions to the list! *There's a long backlog of corpora to be added in the [Issues](https://github.com/coqui-ai/open-speech-corpora/issues), and Pull Requests are very welcome :)* ## 📜 [CC-0](https://creativecommons.org/share-your-work/public-domain/cc0/) | CORPUS | LANGUAGES | # HOURS | # SPEAKERS | DOWNLOAD | LICENSE | | --- | --- | --- | --- | --- | --- | | Common Voice | Multilingual | >15,000 hours (validated); >20,000 hours (total) | Multi-speaker | <https://voice.mozilla.org/en/datasets> | [CC-0](https://creativecommons.org/share-your-work/public-domain/cc0/) | | Yesno | Hebrew | 6 mins | one male | <http://www.openslr.org/1/> | [CC-0](https://creativecommons.org/share-your-work/public-domain/cc0/) | | LJ Speech Corpus | English | ~24 hours | [one female](https://librivox.org/reader/11049) | <https://data.keithito.com/data/speech/LJSpeech-1.1.tar.bz2> | [CC-0](https://creativecommons.org/share-your-work/public-domain/cc0/) | | NST Danish ASR Database | Danish | 229,992 utterances | 616 speakers | original: <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-19/>, reorganized: <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-55/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Danish Dictation | Danish | 34,955 utterances | 151 speakers | <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-20/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Danish Speech Synthesis | Danish | 4,108 utterances | 1 male speaker | <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-21/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Swedish ASR Database | Swedish | 366,000 utterances | 1,000 speakers | original: <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-16/>, reorganized: <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-56/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Swedish Dictation | Swedish | 45,620 utterances | 195 speakers | <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-17/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Swedish Speech Synthesis | Swedish | 5,279 utterances | 1 male speaker | <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-18/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Norwegian ASR Database | Norwegian | 359,760 utterances | 980 speakers | original: <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-13/>, reorganized: <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-54/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Norwegian Dictation | Norwegian | 33,360 utterances | 144 speakers | <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-14/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NST Norwegian Speech Synthesis | Norwegian | 5,363 utterances | 1 male speaker | <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-15/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | NB Tale – Speech Database for Norwegian | Norwegian | 7,600 utterances + ~12 hours | 380 speakers | <https://www.nb.no/sprakbanken/en/resource-catalogue/oai-nb-no-sbr-31/> | [CC-0](https://creativecommons.org/publicdomain/zero/1.0/) | | Norwegian Parliamentary Speech Corpus (v0.1)
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Josh Meyer
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Thorsten Müller · Germany
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Coqui
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Neil Stoker · United Kingdom
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Loren Lugosch
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Alexander Veysov
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Shachar Mirkin · Alpinf · France
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Would you bet a product on this? Bounded 0–100 and slow moving.
matched fp:a70bb7dd1b2c354d, topic:speech-recognition, topic:text-to-speech, topic:tts