Common Voice Scripted Speech 24.0 - Portuguese

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License:

CC0-1.0

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Steward:

Common Voice

Task: ASR

Release Date: 12/5/2025

Format: MP3

Size: 4.79 GB


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Description

A collection of scripted spoken phrases in Portuguese.

Considerations

Forbidden Usage

It is forbidden to attempt to determine the identity of speakers in the common Voice datasets. It is forbidden to re-host or re-share this dataset

Processes

Intended Use

This dataset is intended to be used for training and evaluating automatic speech recognition (ASR) models. It may also be used for applications relating to computer-aided language learning (CALL) and language or heritage revitalisation.

Metadata

Português — Portuguese (pt)

This datasheet has been generated automatically, we would love to include more information, if you would like to help out, get in touch!

This datasheet is for version 24.0 of the the Mozilla Common Voice Scripted Speech dataset for Portuguese (pt). The dataset contains 196195 clips representing 228.23 hours of recorded speech (186.76 hours validated) from 3804 speakers.

Language

Variants

Demographic information

The dataset includes the following distribution of age and gender.

Gender

Self-declared gender information, percentage refers to the number of clips annotated with this gender.

GenderPercentage
Undefined27.0%
Male Masculine68.0%
Female Feminine6.0%

Age

Self-declared age information, percentage refers to the number of clips annotated with this age band.

Age BandPercentage
Undefined24.0%
Twenties36.0%
Thirties18.0%
Teens2.0%
Fourties13.0%
Fifties3.0%
Sixties4.0%

Data splits for modelling

The official data splits for modelling this language are as follows. Of the validated clips, 26.44% are included in the splits.

SplitCount
Train22991
Test9653
Dev9653

Text corpus

The text corpus contains 43680 sentences, of which 43533 are validated, 147 are invalidated and 2850 are reported.

Writing system

Symbol table

Sample

There follows a randomly selected sample of five sentences from the corpus.

Uma senhora em um maiô azul está nadando debaixo d'água.
Preste sempre atenção ao hábito do tempo
As calças cujos bolsos estão furados precisam ser consertadas.
Tupanciretã
A astronomia é um campo importante da ciência.

Sources

Text domains

DomainCount
Undefined194404
Agriculture Food147
Automotive Transport37
Finance27
Service Retail24
General1357
Healthcare191
History Law Government66
Language Fundamentals17
Media Entertainment76
Nature Environment49
News Current Affairs4
Technology Robotics181

Processing

Recommended post-processing

Fields

Each row of a tsv file represents a single audio clip, and contains the following information:

  • client_id - hashed UUID of a given user

  • path - relative path of the audio file

  • text - supposed transcription of the audio

  • up_votes - number of people who said audio matches the text

  • down_votes - number of people who said audio does not match text

  • age - age of the speaker1

  • gender - gender of the speaker1

  • accent - accent of the speaker1

  • segment - if sentence belongs to a custom dataset segment, it will be listed here

Get involved!

Community links

Discussions

Contribute

Acknowledgements

Datasheet authors

Citation guidelines

Funding

Licence

This dataset is released under the Creative Commons Zero (CC-0) licence. By downloading this data you agree to not determine the identity of speakers in the dataset.

Footnotes

  1. For a full list of age, gender, and accent options, see the demograpics spec. These will only be reported if the speaker opted in to provide that information. 2 3