Common Voice Scripted Speech 25.0 - Zulu

Zulu — Zulu (zu)

This datasheet is for cv-corpus-25.0-2026-03-09 of the Mozilla Common Voice Scripted Speech dataset for Zulu [Zulu - zu]. The dataset contains 203 clips representing 0.31 hours of recorded speech (0.02 hours validated) from 8 speakers, recorded from a text corpus of 20,699 sentences.

Language

Accents

Demographic information

The dataset includes the following self-declared age and gender distributions. A coverage summary is shown below each table.

Gender

Self-declared gender information. The table shows clip and speaker counts with percentages. Speakers who did not declare a gender are listed as Unspecified. A dash (-) indicates zero.

Gender declared: 104 of 203 clips (51.2%), 2 of 8 speakers (25.0%)

Age

Self-declared age information. The table shows clip and speaker counts with percentages. Speakers who did not declare an age are listed as Unspecified. A dash (-) indicates zero.

Age declared: 104 of 203 clips (51.2%), 2 of 8 speakers (25.0%)

Data splits for modelling

Clip buckets

Training splits

Training split coverage: 17 of 17 validated clips (100.0%)

The dataset contains 17 validated, 12 invalidated, and 174 unresolved clips. The average clip duration is 5.533 seconds.

Text corpus

Validated sentences: 1,320

The corpus contains 20,699 sentences: 1,320 validated and 19,379 unvalidated (19,379 pending review, 0 rejected), with 4 reported for review.

Sample

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

1. Ukuba nethemba kungakusiza kukho konke okwenzayo.

2. Nika zibe mbili kanye nomphumela wazo ngasinye.

3. Bese ubhala imisho emibili echaza umbono wakho.

4. Sifuna kube nalokho kuvuleleka nokuchaza okucacile.

5. Abanye abantu abaqondi ukuthi sisebenza kanjani.

Sources

Fields

Clips

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

• accents - accents of the speaker1

• variant - variant of the language1

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

• prompt_upvotes - number of upvotes the sentence prompt received

• prompt_reports - number of reports the sentence prompt received

• is_edited - whether the clip's transcription has been edited

validated_sentences.tsv

The validated_sentences.tsv file contains one row per validated sentence in the text corpus:

• sentence_id - unique identifier for the sentence

• sentence - the sentence text

• variant - the variant of the language

• sentence_domain - the domain(s) the sentence belongs to

• source - the source the sentence was collected from

• is_used - whether the sentence is still in circulation for recording

• clips_count - number of clips recorded for this sentence

unvalidated_sentences.tsv

The unvalidated_sentences.tsv file contains one row per unvalidated sentence in the text corpus:

• sentence_id - unique identifier for the sentence

• sentence - the sentence text

• variant - the variant of the language

• sentence_domain - the domain(s) the sentence belongs to

• source - the source the sentence was collected from

• up_votes - number of upvotes the sentence received

• down_votes - number of downvotes the sentence received

• status - current status of the sentence (pending or rejected)

Get involved

Community links

• Common Voice translators on Pontoon

• Common Voice Communities

Discussions

• Common Voice on Matrix

• Common Voice on Discourse

• Common Voice on Discord

• Common Voice on Telegram

Contribute

• Speak

• Write

• Listen

• Review

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 demographics spec. These will only be reported if the speaker opted in to provide that information. ↩ ↩2 ↩3 ↩4