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Home > All Category Datasets > Speech Recognition Datasets > 760 Hours Vietnamese Speech Dataset for Voice Assistant and Smart Device Training

760 Hours Vietnamese Speech Dataset for Voice Assistant and Smart Device Training

Vietnamese speech dataset
vietnamese ASR dataset
vietnamese speech recognition dataset
voice command dataset
voice assistant training data
automotive speech dataset

This dataset contains 760 hours of Vietnamese scripted speech collected from monologues based on predefined prompts. The dataset covers multiple speech scenarios, including general topics, human-machine interaction, smart home voice commands, automotive voice commands, numbers, and news content. All recordings are transcribed with corresponding text content and additional metadata. Our dataset was collected from 1,751 native Vietnamese speakers, 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
16kHz, 16 bit, wav, mono channel;
Content category
Generic domain, human-machine interaction, smart home command and control, in-car command and control, numbers, news;
Recording condition
Low background noise (indoor), without echo;
Recording device
Android Smartphone, iPhone;
Speaker
1,751 speakers with 778 males and 973 females; 1,138 speakers of all are in the age group of 18-25, 613 speakers of all are in the age group of 26-65;
Country
Vietnam(VNM);
Language(Region) Code
vi-VN;
Language
Vietnamese;
Features of annotation
Transcription text;
Accuracy Rate
Sentence Accuracy Rate (SAR) 95%
Sample Sample
  • Audio

    Chúng ta không thể cứ gọi họ và bảo họ phải làm gì.

  • Audio

    Đặc sản của nhà hàng Bến Ngự Quán là gì?

  • Audio

    Bật điều hòa lên!

  • Audio

    ngày ba mươi tháng một năm một nghìn chín trăm hai mươi chín

  • Audio

    tôi luôn luôn muốn kiểm tra huyết áp của mình, hãy hiển thị

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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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