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Home > All Category Datasets > Speech Recognition Datasets > 406 Hours European Portuguese Speech Dataset with Spontaneous Dialogues and Transcripts

406 Hours European Portuguese Speech Dataset with Spontaneous Dialogues and Transcripts

portuguese audio dataset
portuguese speech dataset
portuguese voice dataset
portuguese speech corpus
european portuguese speech dataset
portuguese asr dataset

This dataset contains 406 hours of European Portuguese spontaneous dialogue speech collected through topic-based conversations covering more than 20 domains. Each recording includes accurate transcripts, speaker ID, gender, age, and additional metadata. The dataset was collected from 590 native European Portuguese speakers across diverse regions, 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
Dialogue based on given topics;
Recording condition
Low background noise (indoor);
Recording device
Android smartphone, iPhone;
Speaker
590 people in total, 46% male and 54% female
Country
Portugal(PRT);
Language(Region) Code
pt-PT;
Language
Portuguese;
Features of annotation
Transcription text, timestamp, speaker ID, gender, noise,PII redacted.
Accuracy Rate
Word Accuracy Rate (WAR) 98%
Sample Sample
  • Audio

    Claro que o Gui e o Agar, os nossos outros dois amigos, eh, repararam e foram imediatamente atrás dele.[N]

  • Audio

    No vídeo ele estava a sorrir, estava a fazer palhaçadas, estava atrás da, da Anne.

  • Audio

    Porque eu, lá está, pelo que me disseram, estava tudo bem, tudo bem. Não, não, não houve.[N]

  • Audio

    [OVERLAP/]E é [/OVERLAP]verdade.

  • Audio

    Disseram que no início não havia qualquer indício, que ele podia estar triste ou desanimado.[N]

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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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