Children's Speech Corpus
2025-10-28 05:15:22

Visual Bank Launches Children's Japanese Speech Corpus to Enhance AI Development

Introduction to the Qlean Dataset


Visual Bank Inc., based in Minato-ku, Tokyo, is pioneering the field of AI data solutions through its innovative Qlean Dataset. Under the leadership of CEO Saneyuki Nagai, the company has dedicated itself to supporting research and commercial AI development by providing a comprehensive suite of datasets, referred to as "AI Data Recipes." These resources are designed for flexible use across various AI projects, tailored to assist developers in maximizing their results while ensuring compliance with privacy laws.

New Addition: Children's Japanese Conversational Speech Corpus


A recent and exciting addition to the Qlean Dataset is the "Children's Japanese Conversational Speech Corpus." This new dataset aims to enhance the performance of AI applications focused on speech recognition, education, and emotional analysis. With its focus on natural conversations among children, it serves to enrich the toolkit available for developers and researchers alike.

Characteristics of the Dataset


  • - Data Type: Audio, specifically in WAV format.
  • - Subjects: Japanese children engaged in everyday conversations.
  • - Recording Length: Each audio sample runs approximately 20 minutes, capturing the nuances of spontaneous dialogue among kids.
  • - Usage: The dataset is invaluable for a variety of applications, from enhancing Automatic Speech Recognition (ASR) systems for young speakers to supporting the development of educational AI and assistive technologies.
  • - Link for Details: Sample Details

Use Cases


The Children's Japanese Conversational Speech Corpus is crafted to serve multiple purposes across various fields:

1. Improving ASR for Child Speech


The dataset offers natural dialogue recordings between Japanese-speaking children, capturing age-specific phonetic variations and pronunciation nuances. This makes it ideal for developers focusing on enhancing ASR models or designing voice assistants for children.

2. Research on Developmental and Educational AI


Structured around common language patterns, the corpus allows researchers to quantitatively analyze children's linguistic comprehension and response tendencies by age. This supports the development of educational AIs and reading assistants aimed at promoting the learning process in young users.

3. Conversational AI and Educational Robots


By incorporating natural speech rhythms and intonations found in children's conversations, developers can create engaging dialogue systems and educational robots that facilitate smoother interactions with young audiences—enhancing the educational experience through technology.

4. Training Emotion Recognition and Empathy AI


Children's expressions of emotions—ranging from laughter to variations in pitch—are captured in this dataset, making it an excellent resource for training emotion recognition and empathetic response AI systems. Such technology can significantly enhance user interactions in educational settings and at home.

5. Academic Research in Linguistics


Providing a robust foundation for linguistic and sociolinguistic studies, this corpus offers valuable insights into vocabulary diversity and conversational structures as children develop their language skills. It holds promise for researchers exploring the intricacies of language acquisition.

Advantages of the Qlean Dataset


Research and Commercial Use Support


Visual Bank ensures that all data subjects have consented to the data collection and AI use under worldwide regulations. This commitment empowers researchers and companies to utilize the datasets confidently in both commercial and academic settings.

Efficient Use Through Modular Data Structure


By adopting the unique AI Data Recipe format, the Qlean Dataset allows for speedy and cost-effective data acquisition, optimizing return on investment (ROI) for AI projects.

Customizable Data Solutions


Understanding the diverse needs of developers, Visual Bank also offers the option to create custom datasets tailored to specific requirements, further enhancing the versatility of the Qlean Dataset.
For further inquiries or partnership opportunities, please visit Contact Us.

About Visual Bank Inc.


Visual Bank Inc. stands at the forefront of the next-generation data infrastructure landscape. With the mission to "unleash the potential of all data," the company operates alongside its subsidiaries like Amana Images, which supplies the Qlean Dataset. Recognized in national R&D programs, Visual Bank continues to foster innovations that propel AI in educational and commercial use, ensuring secure and ethical practices in data handling. For more information, visit Visual Bank.


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