Common Voice Scripted Speech 25.0 - Dholuo

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License:

CC0-1.0

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Steward:

Common Voice

Task: ASR

Release Date: 3/22/2026

Format: MP3

Size: 2.08 GB


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Description

A collection of read speech recordings in Dholuo (luo).

Specifics

Licensing

Creative Commons Zero v1.0 Universal (CC0-1.0)

https://spdx.org/licenses/CC0-1.0.html

Considerations

Restrictions/Special Constraints

None provided.

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

luo — Dholuo (luo)

This datasheet is for cv-corpus-25.0-2026-03-09 of the Mozilla Common Voice Scripted Speech dataset for Dholuo [luo - luo]. The dataset contains 82420 clips representing 111.57 hours of recorded speech (27.53 hours validated) from 47 speakers, recorded from a text corpus of 28,562 sentences.

Language

Accents

CodeAccentClipsSpeakers
-20 (0.0%)2 (4.3%)

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.

CodeGenderClipsSpeakers
male_masculineMale, masculine--
female_feminineFemale, feminine32,531 (39.5%)15 (31.9%)
transgenderTransgender--
non-binaryNon-binary--
do_not_wish_to_sayPrefer not to say--
-Unspecified49,889 (60.5%)35 (74.5%)

Gender declared: 32,531 of 82,420 clips (39.5%), 12 of 47 speakers (25.5%)

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.

CodeAgeClipsSpeakers
teensTeens10 (0.0%)1 (2.1%)
twentiesTwenties27,627 (33.5%)16 (34.0%)
thirtiesThirties23,339 (28.3%)10 (21.3%)
fourtiesFourties348 (0.4%)2 (4.3%)
fiftiesFifties1,577 (1.9%)1 (2.1%)
sixtiesSixties--
seventiesSeventies--
eightiesEighties--
ninetiesNineties--
-Unspecified29,519 (35.8%)22 (46.8%)

Age declared: 52,901 of 82,420 clips (64.2%), 25 of 47 speakers (53.2%)

Data splits for modelling

Clip buckets

BucketClips
Validated20,343 (24.7%)
Invalidated704 (0.9%)
Other61,373 (74.5%)

Training splits

SplitClips
Train4,498 (22.1%)
Dev3,060 (15.0%)
Test3,001 (14.8%)

Training split coverage: 10,559 of 20,343 validated clips (51.9%)

The dataset contains 20343 validated, 704 invalidated, and 61373 unresolved clips. The average clip duration is 4.873 seconds.

Text corpus

Validated sentences: 14,692

CategoryCount
Unvalidated sentences13,870
Pending sentences13,250
Rejected sentences620
Reported sentences7

The corpus contains 28,562 sentences: 14,692 validated and 13,870 unvalidated (13,250 pending review, 620 rejected), with 7 reported for review.

Sample

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

  1. *Nyamburko ne ochungi e bath ot maduong' mar nyasi. *

  2. Owete biro romo e dala

  3. Ikendo Kanye?

  4. Poki ichopo e duka

  5. Twak ewi tuo mar ayaki.

Sources

SourceSentences
self4,302 (29.3%)
Self3,778 (25.7%)
An awuon3,268 (22.2%)
an awuon1,900 (12.9%)
Kencorpus755 (5.1%)
An Awuon371 (2.5%)
sent237 (1.6%)
Other81 (0.6%)

Text domains

CodeDomainClipsSpeakers
generalGeneral69,231 (84.0%)46 (97.9%)
agriculture_foodAgriculture and Food1,134 (1.4%)33 (70.2%)
automotive_transportAutomotive and Transport340 (0.4%)32 (68.1%)
financeFinance965 (1.2%)32 (68.1%)
service_retailService and Retail2,737 (3.3%)37 (78.7%)
healthcareHealthcare2,229 (2.7%)36 (76.6%)
history_law_governmentHistory, Law and Government864 (1.0%)34 (72.3%)
media_entertainmentMedia and Entertainment802 (1.0%)32 (68.1%)
nature_environmentNature and Environment628 (0.8%)31 (66.0%)
news_current_affairsNews and Current Affairs2,691 (3.3%)37 (78.7%)
technology_roboticsTechnology and Robotics239 (0.3%)30 (63.8%)
language_fundamentalsLanguage Fundamentals549 (0.7%)33 (70.2%)

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)

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