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Home > All Category Datasets > Speech Recognition Datasets > 18 Hours Brazilian Accent English Speech Dataset for Voice AI and Speech Recognition

18 Hours Brazilian Accent English Speech Dataset for Voice AI and Speech Recognition

brazilian accent english speech dataset
english ASR dataset
accent speech dataset
speech recognition training data
voice assistant training data
speech command dataset

This dataset contains 18 hours of scripted English speech collected from 55 Brazilian speakers using smartphone devices. The recordings are based on predefined scripts covering general topics, human-machine interaction scenarios, smart home voice commands, automotive voice commands, numbers, and other speech applications. Each audio sample is transcribed with corresponding text content and additional metadata. 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, 16bit, uncompressed wav, mono channel;
Recording condition
Low background noise(indoor), without echo;
Content category
Generic domain; human-machine interaction; smart home command and in-car command; numbers;
Recording device
Android Smartphone, iPhone
Speaker
55 Brazilian, including 35 males and 20 females
Country
Brazil(BRA)
Language
English
Accuracy Rate
Sentence Accuracy Rate(SAR) 95%
Sample Sample
  • Audio

    Are pets allowed in rooms at Hotel Step?

  • Audio

    My house is the first one on the left.

  • Audio

    Please stop music

  • Audio

    I'm not feeling good please turn on the music

  • Audio

    eight hundred twenty-four million two hundred eighty-eight thousand five hundred sixty-three

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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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