 | |
| Developer(s) | Mozilla Foundation |
|---|---|
| Initial release | June 19, 2017; 7 years ago (2017-06-19) |
| Repository | github |
| Available in | Multilingual (List of languages) |
| License | Creative Commons CC0 |
| Website | commonvoice.mozilla.org |
Common Voice is acrowdsourcing project started byMozilla to create a freedatabase forspeech recognition software. The project is supported byvolunteers who record sample sentences with amicrophone and review recordings of other users. The transcribed sentences are collected in a voice database available under thepublic domain licenseCC0.[1] This license ensures thatdevelopers can use the database for voice-to-text applications without restrictions or costs.
Common Voice aims to provide diverse voice samples. According to Mozilla'sKatharina Borchert, many existing projects took datasets from public radio or otherwise had datasets that underrepresented both women and people with pronounced accents.[2]
 | This section needs to beupdated. Please help update this article to reflect recent events or newly available information.(October 2024) |
At the beginning of 2022, Bengali.AI partnered with Common Voice to launch "Bangla Speech Recognition" project that aims to make machines understandBangla language. 2000 hours of voice was collected with aim for higher than 10,000 hours.[3]
The first dataset was released in November 2017. More than 20,000 users worldwide had recorded 500 hours of English sentences.[4]
In February 2019, the first batch of languages was released for use. This included 18 languages:English,French,German andMandarin Chinese, but also less prevalent languages asWelsh andKabyle. In total, this included almost 1,400 hours of recorded voice data from more than 42,000 contributors.[5]
As of July 2020 the database has amassed 7,226 hours of voice recordings in 54 languages, 5,591 hours of which has been verified by volunteers.[6]
In May 2021, following the work to addKinyarwanda, they received a grant to addKiswahili.[7]
In September 2022, it was announced that theTwi language of Ghana was the 100th language to be added to the Mozilla Common Voice database.[8]
As of October 2022[update], Mozilla Common Voice officially collects voice data for the following languages:[9]