Norynta Data › Language data index › Japanese
Japanese (日本語) speech data for AI
How much open Japanese speech data exists, where the gaps are, and how to get consented Japanese data collected.
Japanese is relatively well covered, but open data is mostly short read-aloud sentences. Natural conversation, call-centre and domain audio, children, older speakers and regional accents are still hard to find.
Source: Mozilla Common Voice language statistics, fetched 2026-11-05. Figures cover the open Common Voice corpus only.
Need Japanese data?
We recruit native Japanese speakers and collect to your spec: read prompts or natural two-person conversation, transcripts in the native script, speaker age, gender and region labels, noise and synthetic-voice checks, and a consent record for every file. Shared or exclusive licence.
Speak Japanese?
日本語
Join the contributor waitlist and we'll email you paid Japanese recording and writing projects when they open. You record on your phone and are paid once your work is accepted.
Questions
Where can I get Japanese speech data for AI training?
Norynta collects Japanese speech data to order from consenting native speakers: read prompts, natural conversations, transcripts and private evaluation sets, with a consent and origin record for every file. Request it at collect.norynta.com/buy. For open data, Mozilla Common Voice has 385 validated hours of Japanese (as of 2026-11-05).
How much open Japanese speech data is available?
As of 2026-11-05, Mozilla Common Voice lists 385 validated hours and 761 recorded hours of Japanese from 7,936 speakers, ranking 15 of 445 languages by validated hours.
Can I get paid to record Japanese?
Yes. Native Japanese speakers can join Norynta's contributor waitlist at collect.norynta.com/join. We email paid recording and writing projects in Japanese when they open, and pay once the work is accepted.