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Japanese Speech Recognition Dataset

Japanese Speech Recognition Dataset contains audio recordings of real-world Japanese telephone dialogues between native speakers, providing speech data with detailed annotations for speech recognition, language models, and conversational AI, making it ideal training data for recognition systems, speech synthesis, and machine learning applications

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  • Hours
    513
  • Speakers
    800+
  • Sentence Accuracy Rate
    95%
  • NLP
  • LLM
  • Machine Learning
  • Audio Processing
  • ASR
  • Voice Recognition

Japanese Speech Recognition Dataset contains audio recordings of real-world Japanese telephone dialogues between native speakers, providing speech data with detailed annotations for speech recognition, language models, and conversational AI, making it ideal training data for recognition systems, speech synthesis, and machine learning applications

Get in touch Download sample
  • NLP
  • LLM
  • Machine Learning
  • Audio Processing
  • ASR
  • Voice Recognition
  • Hours
    513
  • Speakers
    800+
  • Sentence Accuracy Rate
    95%

Dataset Info

Characteristic Data
Description Audio of telephone dialogues in Japanese for training NLP models in real-world conversational scenarios.
Data types Audio
Tasks Speech recognition, NLP
Country Japan (JPN)
Hours of telephone dialogue 513
Number of speakers 878
Labeling Annotation (text content, speaker's ID, gender, age and other attributes)
Gender Male (46%), Female (54%)
Recording device Android smartphone, iPhone
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Statistics

Distribution by gender

Technical
Characteristics

Characteristic Data
Audio Format Wav, u-law/a-law
Sampling Rate 8kHz
Number of Channels Mono
Bit Depth 8 bit
Recording condition Low background noise (indoor)
Source and collection methodology: Data was collected by a partner of Unidata.

Dataset Use Cases

  • Call Centers & Customer Support

    Enhancing Japanese Telephone Dialogue Recognition

    Japanese Speech Recognition Dataset includes real audio recordings from customer conversations. Speech data representing native Japanese speakers and regional variations improve recognition systems in call centers. Businesses use it to deliver more accurate automatic speech recognition, better transcriptions, and smoother support in the Japanese market.



  • AI & Machine Learning Research

    Training Models for Japanese Speech Processing

    This dataset provides essential training data for machine learning and language models. The speech corpus includes high-quality audio files with text transcriptions from native speakers. Researchers use it to develop recognition systems that handle recognition tasks with high accuracy, supporting both academic and commercial AI projects.

  • Multilingual Applications

    Supporting Cross-Language NLP and Translation

    The dataset is widely used in language processing and speech synthesis for multiple languages. Developers combine it with other languages to enhance conversational AI, multilingual recognition tasks, and natural language translation systems. Its diverse datasets ensure adaptability for global products requiring accurate Japanese speech recognition.



  • Commercial & Industrial Solutions

    Deploying Japanese Dialogue Recognition in Real Scenarios

    The Japanese dialogue dataset supports commercial use cases such as smart assistants, transcription tools, and interactive platforms. Since the database contains speech recordings from Japanese speakers in real situations, it boosts the reliability of recognition systems and ensures better performance for conversational AI and speech technology products.



FAQs

What is Japanese Speech Recognition Dataset used for?
The dataset is designed for speech recognition tasks, NLP training, and conversational AI systems. It supports speech synthesis, automatic speech-to-text models, and language models for natural language understanding.
How diverse is the dataset?
It features 878 speakers, with 46% male and 54% female, representing a balanced demographic of native Japanese speakers.
Can I request a sample of the dataset before purchasing or downloading it?
Yes, a sample can be provided. This lets you review audio recordings, speech data, and speaker metadata to confirm that it meets your training data and recognition system requirements.
What should I consider before buying Japanese Speech Recognition Dataset?
When purchasing the dataset, check the audio format, sampling rate, and the number of native Japanese speakers included. Ensure the text transcriptions and annotations match your project’s goals in speech recognition and language processing.
How are Unidata datasets licensed?
Unidata datasets use a dual-licensing model. Free speech samples are available for testing, while the full dataset can be purchased for commercial use, machine learning, and language processing applications.
Do Unidata datasets follow GDPR or other data privacy regulations?
Yes. All Unidata datasets are curated in compliance with GDPR and applicable data protection standards. The speech data is collected through lawful and ethical data collection practices, ensuring safe use in recognition systems and learning models.
How long does it take to receive the dataset?
Once a request is submitted, Unidata reviews the details and finalizes the necessary documentation with you. After signing the agreement and processing payment, the Japanese dialogue dataset is delivered within 3-10 business days.
Is this a real-world dataset or synthetic data?
This is a real-world dataset. The dataset contains authentic audio recordings with natural speech patterns, text transcriptions, and diverse voice data from multiple speakers in low-noise environments. It is not synthetic but real conversational Japanese speech for training data.
Still have questions about using Unidata datasets? Read our user-guides

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