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Home > All Category Datasets > Speech Recognition Datasets > 1013 Hours Brazilian Portuguese Speech Dataset for Speech Recognition

1013 Hours Brazilian Portuguese Speech Dataset for Speech Recognition

brazilian portuguese speech dataset
portuguese speech dataset
portuguese speech corpus
brazilian portuguese asr dataset
brazilian portuguese asr dataset

This dataset contains 1,013 hours of Brazilian Portuguese conversational speech, featuring natural conversations and monologues recorded by native speakers from diverse regions. The recordings reflect real-world speaking styles and provide rich linguistic diversity for speech AI development. Each recording includes a transcript, speaker ID, gender, and supporting metadata, enhancing model performance in real and complex tasks. The dataset has undergone quality validation by multiple 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, and PIPL compliant.

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SpecificationsSpecifications
Format
16kHz, 16 bit, wav, mono channel
Recording environment
Low background noise
Country
Brazil(BRA)
Language(Region) Code
pt-BR
Language
Portuguese
Features of annotation
Transcription text, timestamp, speaker ID, gender, noise
Accuracy
Word Accuracy Rate (WAR) 98%
Sample Sample
  • Audio

    Pelo Instituto Clay americano que convidou, é, várias sumidades matemáticas,

  • Audio

    Aée o, há uma confusão na imprensa, há um culto à celebridade que Perelman rejeita.

  • Audio

    nos arredores de uma humilde cidade no interior do Paraná.

  • Audio

    Eu acompanhei todo esse processo com grande perplexidade,

  • Audio

    E quem aqui, tendo ganhado o prêmio da Mega-Sena, se recusaria a receber o dinheiro? Levante a mão.

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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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