Common Voice Scripted Speech 23.0 - Twi

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License:

CC0-1.0

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Steward:

Common Voice

Task: ASR

Release Date: 9/15/2025

Format: MP3

Size: 9.64 MB


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Description

A collection of scripted spoken phrases in Twi.

Considerations

Restrictions/Special Constraints

You agree that you will not re-host or re-share this dataset

Forbidden Usage

You agree not to attempt to determine the identity of speakers in the Common Voice 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

Twi — Twi (tw)

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 23.0 of the the Mozilla Common Voice Scripted Speech dataset for Twi (tw). The dataset contains 287 clips representing 0.3 hours of recorded speech (0.2 hours validated) from 13 speakers.

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.

GenderPertentage
Undefined23.0%
Male Masculine77.0%

Age

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

Age BandPercentage
Undefined20.0%
Twenties5.0%
Thirties75.0%

Data splits for modelling

The official data splits for modelling this language are as follows. Of the validated clips, 100.00% are included in the splits.

SplitCount
Train208
Test21

Text corpus

The text corpus contains 49178 sentences, of which 49159 are validated, 19 are invalidated and 3 are reported.

Sample

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

Ɔsane ma wɔn akwankyerɛ
Ɔkyerɛwfo Ursula K.
Wo ho yɛ?
sɛ obi wɔ awerɛhow mu na ɔrepɛ awerɛkyekye a
Dɛn na esii ɔsram a etwaam no mu?

Text domains

DomainCount
Undefined287

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

Community links

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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