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Home > All Category Datasets > Speech Recognition Datasets > 579 Hours - Japanese Full-Duplex Multi-Channel Speech Dataset (48khz)

579 Hours - Japanese Full-Duplex Multi-Channel Speech Dataset (48khz)

Full-Duplex Speech Dataset
Multi-Channel Speech Dataset
Japanese Speech Dataset
Japanese Audio Dataset

This data collected from dialogues based on given topics. Transcribed with text content, speaker's ID, gender, and other attributes. Our dataset was collected from extensive and diversify speakers, geographicly speaking, enhancing model performance in real and complex tasks. Quality tested by various AI companies. We strictly adhere to data protection regulations and privacy standards, ensuring the maintenance of user privacy and legal rights throughout the data collection, storage, and usage processes, our datasets are all GDPR, CCPA, PIPL complied.

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SpecificationsSpecifications
Format
48kHz, 32 bit, wav, mono channel;
Content category
Free dialogue based on given topics
Recording condition
Low background noise (indoor);
Recording device
Microphone
Country
Japan(JPN);
Language
Japanese;
Features of annotation
Transcription text, timestamp, speaker ID, gender.
Accuracy Rate
Character Accuracy Rate (CAR) 98%
Sample Sample
  • Audio

    [OVERLAP/]うん[/OVERLAP]うんってなるやつがすごく多い、のがあって。

  • Audio

    うん。[N]

  • Audio

    二回やるみたいな、イメージでやったら、[OVERLAP/]もう[/OVERLAP]ちょっと落ちやすいかな。

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What languages and scenarios are covered by Nexdata’s speech recognition datasets?

Nexdata offers speech recognition datasets covering a broad range of languages, dialects, and accents, backed by extensive global language resources. Our datasets include diverse speakers, acoustic environments, and real-world speech scenarios, supporting multilingual ASR, voice assistants, conversational AI, speech-to-text, and other speech-enabled applications.

Can Nexdata customize speech recognition datasets for specific languages or requirements?

Yes. If our off-the-shelf datasets do not fully meet your requirements, Nexdata provides flexible custom data collection, transcription, and annotation services. We can customize datasets based on target languages or dialects, speaker profiles, recording environments, speech scenarios, data volume, and annotation specifications to meet specific ASR development needs.

How does Nexdata ensure the quality and scalability of speech recognition datasets?

Nexdata applies multi-stage quality control throughout speech data collection, transcription, annotation, and validation. Combined with our extensive language resources and scalable collection capabilities, we can support both large-scale multilingual projects and specialized datasets for specific languages, dialects, accents, and speech scenarios.

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