Japanese Data Services for AI
Align and automate communications and functions with Japanese-speaking audiences with Japanese language data for AI training by Andovar.

1,000+ Hours of
AI-ready Japanese Voice Data
1 million mono & bilingual
AI-ready Japanese Text Segments for NLP
Leading annotation
Technology & annotators
Japanese SMEs
for all major industries
Japanese Language Data
Japanese is spoken by over 125 million people, primarily in Japan, and is characterized by a complex writing system (kanji, hiragana, katakana), politeness levels, and notable dialectal variation (Tokyo, Kansai, Tohoku, Kyushu, etc.). These linguistic features—honorifics, morphological agglutination, and script mixing—make region- and register-aware datasets essential for accurate NLP, ASR, translation, and conversational AI. High-quality Japanese datasets improve performance in tasks such as intent detection, sentiment analysis, machine translation, search relevance, and dialog systems.
Data Solution
Crowdsourced Japanese data for speech, text and video

Japanese Voice Data
Harness the power of Japanese voice data to enhance your AI systems
Japanese voice data is foundational for ASR, TTS, voice assistants, and conversational agents that must respect register, dialect, and prosody. Our Japanese speech collections include read speech, conversational speech, scripted recordings, spontaneous dialogue, and bilingual (Japanese–English) interactions where needed. We record across acoustic environments to ensure robust model behavior in real-world conditions.
Voice Data Specifications
Hours
1,000+ hours
Device
Mobile, Laptop, Professional Studio
Sample Rate
8 - 88 KHz
Recording Environment
Professional studio, car, office, outdoor, multi-background noise
Use Cases
ASR, Chatbot training, Language modelling, TTS

Japanese Transcription
Transform Japanese audio and video content into text with precision
We provide Japanese audio-to-text transcription, subtitle generation, and timecoded transcripts handled by native transcribers familiar with kanji conversion, punctuation conventions, and honorific usage. Services include media transcription, interviews, legal and medical transcription, and subtitling workflows tailored to client needs.

Japanese Data Annotation
Enhance your AI models with expertly annotated data
Our Japanese annotation services cover text, speech, image, and video labeling for tasks such as NER, sentiment, intent classification, POS tagging, acoustic labeling, bounding boxes, segmentation, and activity recognition. Annotators are native speakers trained to handle politeness levels, script normalization, and dialectal forms.

Japanese Text Data
Leverage our extensive Japanese text datasets for your AI projects
We provide Japanese text corpora across domains: news, social media, product reviews, legal documents, scientific articles, customer service logs, and dialog corpora. These datasets support language modelling, machine translation, content moderation, search optimization, and chatbot training.

Custom Japanese Data Projects
Tailor your Japanese data needs with our custom projects
We design bespoke Japanese datasets including OCR for Japanese scripts (printed and handwritten), domain-specific corpora (healthcare, finance, legal), call-center dialogues, multimodal datasets combining audio and video, and datasets that capture regional dialects and honorific usage. All projects follow strict data security and ethical collection practices.
Text Data
- Books
- News
- Academic articles
- Blogs
- Social posts
- Product reviews
- Technical manuals
- Legal & medical documents
Visual and Multimedia Data
- Image captions
- Video subtitles
- Infographics
Domain-Specific Data
- Financial reports
- Scientific datasets
- Government publications
- Industry terminology
Conversational Data
- Interview transcripts
- Chat logs
- Movie/TV dialogue
- Podcast transcriptions
Structured and Semi-Structured Data
- Databases
- Spreadsheets
- Tables & charts
Miscellaneous Documents
- Menus
- Receipts
- Invoices
- Emails
- Travel itineraries
Cultural and Creative Content
- Song lyrics
- Poetry
- Recipes
- Jokes
- Folktales
User-Generated Content
- Comments
- Profiles
- Q&A pairs
Language and Linguistic Data
- Multilingual corpora
- Dialectal data
- Pronunciation guides
Interactive & Instructional Content
- Tutorials
- FAQs
- Help articles
- Game scripts
By submitting this form, you are agreeing to Andovar's Privacy Policy.





