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Leading Provider of Japanese Language Data Infrastructure for High-Performance AI
Comprehensive conversational and culturally contextualized datasets essential for reliable AI deployment in the Japanese market
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Qlean Dataset Delivers Foundation-Ready Japanese Linguistic and Document Intelligence Corpora Across Audio, Text, and Structured Data
Foundation-ready structured documentation, OCR-optimized training data, and real-world speech corpora forming a robust data layer for enterprise automation and multimodal AI systems.

Spontaneous Conversational Speech Corpus

Dialectal & Accent-Robust
ASR Dataset

Audio Toxicity & Harassment Detection Corpus

Japanese Logical Reasoning Benchmark Dataset

Domain-Specific Task-Oriented Speech Corpus

Environmental & Ambient Audio Dataset (Japan-Specific)

100,000+ Hours
Native-Grade Japanese Speech Data

500+ Scenarios
Real-World Conversational & Contextual Variations

Multi-Layer Structures
Honorifics, Context, Narrative, Emotion

100% Rights-Cleared
Compliance-Ready Industrial-Grade AI Data
Our Approach
Japanese Structured Speech Corpora by Speaker Configuration and Thematic Domain

Emotional speech dataset

Speech corpus and transcripts of Japanese two-speaker business conversations

Japanese monologue audio data from a single speaker in a regional dialect
Single-speaker
Japanese Single-Speaker Classical Reading Speech Corpus & Transcripts
Japanese Literature & Novel Reading Speech Corpus & Transcripts
Japanese Single-Speaker Business / Self-Improvement / Hobbies Speech Corpus
Japanese Single-Speaker Ghost / Horror Story Reading Corpus
Japanese Single-Speaker Foreign Literature Reading Corpus
Japanese Single-Speaker Subculture / Spirituality / Healing Corpus
Japanese Single-Speaker Education / Language Learning Corpus
Japanese Children’s Books / Fairy Tales Reading Corpus)
Japanese Single-Speaker Storytelling Corpus
Japanese Single-Speaker Scripted Speech Corpus
Japanese Single-Speaker Music-Themed Talk Corpus
Japanese Single-Speaker Leisure-Themed Talk Corpus
Japanese Single-Speaker Regional Dialect Monologue Corpus)
Japanese Single-Speaker Sociocultural Topic Talk Corpus
Japanese Single-Speaker Historical Theme Talk Corpus
Japanese Single-Speaker Crime Theme Talk Corpus
Business Single-Speaker Narrative Monologue Corpus
Emotional Speech Dataset
Two-Speaker
Japanese Two-Speaker LR-Separated Private Dialogue Speech with Transcripts
Japanese, 2-speaker, regional dialect dialogue speech corpus dataset
Japanese, 2-speaker dialogue audio dataset including emotions
Japanese Two-Speaker Leisure-Themed Talk Corpus
Japanese Two-Speaker Educational-Themed Talk Corpus
Japanese Two-Speaker Sociocultural Topic Talk Corpus
Japanese Two-Speaker Sociocultural Topic Talk Corpus
Japanese Two-Speaker Comedy Talk Corpus
Japanese Two-Speaker Sports Talk Corpus)
Japanese Two-Speaker Technology Talk Corpus
Japanese Two-Speaker TV / Movie Theme Talk Corpus
Japanese Two-Speaker Business Conversation Corpus
Japanese Two-Speaker Art-Themed Talk Corpus
Speech corpus and transcripts of Japanese two-speaker business conversations
Japanese Complaint Handling & Speaker Separation Corpus
Multi-Speaker
Enabling Innovation Across AI Systems,
Qlean Dataset Delivers Industrial-Grade Japanese Data Infrastructure
Global and Japanese Compliance for Enterprise Data Governance
We provide fully rights-cleared datasets engineered for large-scale AI development and production deployment.
Our data governance framework aligns with Japanese regulatory standards as well as GDPR and CCPA requirements, ensuring secure, compliant, and commercially viable use across global markets. Structured documentation, consent management, and audit-ready processes support enterprise procurement and regulatory confidence.
Our Contribution to Society
Qlean Dataset is an industrial-grade AI data infrastructure company within the Visual Bank Group, delivering high-quality, rights-cleared datasets designed for advanced AI development.
Built upon the compliance principles established by Amanaimages and supported by initiatives such as GENIAC, Qlean Dataset plays a critical role in enabling clean, compliant, and reliable AI systems.
We serve as the Behind-the-Scenes of Creativity, delivering datasets engineered for linguistic precision, contextual intelligence, and enterprise-grade reliability.