Common Voice Scripted Speech 25.0 - Kinyarwanda

License:

CC0-1.0

Steward:

Common Voice

Task: ASR

Release Date: 3/25/2026

Format: MP3

Size: 57.18 GB

Description

A collection of read speech recordings in Kinyarwanda (Ikinyarwanda).

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

Ikinyarwanda — Kinyarwanda (`rw`)

This datasheet is for cv-corpus-25.0-2026-03-09 of the Mozilla Common Voice Scripted Speech dataset for Kinyarwanda [Ikinyarwanda - rw]. The dataset contains 1714228 clips representing 2384.18 hours of recorded speech (2001.61 hours validated) from 1181 speakers, recorded from a text corpus of 1,404,885 sentences.

Language

Accents

Code	Accent	Clips	Speakers
-		75 (0.0%)	9 (0.8%)

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.

Code	Gender	Clips	Speakers
male_masculine	Male, masculine	976,918 (57.0%)	431 (36.5%)
female_feminine	Female, feminine	561,573 (32.8%)	308 (26.1%)
transgender	Transgender	-	-
non-binary	Non-binary	-	-
do_not_wish_to_say	Prefer not to say	-	-
-	Unspecified	175,737 (10.3%)	527 (44.6%)

Gender declared: 1,538,491 of 1,714,228 clips (89.7%), 654 of 1,181 speakers (55.4%)

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.

Code	Age	Clips	Speakers
teens	Teens	347,407 (20.3%)	102 (8.6%)
twenties	Twenties	1,042,763 (60.8%)	521 (44.1%)
thirties	Thirties	198,070 (11.6%)	99 (8.4%)
fourties	Fourties	27,206 (1.6%)	32 (2.7%)
fifties	Fifties	6,421 (0.4%)	8 (0.7%)
sixties	Sixties	-	-
seventies	Seventies	-	-
eighties	Eighties	-	-
nineties	Nineties	-	-
-	Unspecified	92,361 (5.4%)	507 (42.9%)

Age declared: 1,621,867 of 1,714,228 clips (94.6%), 674 of 1,181 speakers (57.1%)

Data splits for modelling

Clip buckets

Bucket	Clips
Validated	1,439,161 (84.0%)
Invalidated	227,823 (13.3%)
Other	47,244 (2.8%)

Training splits

Split	Clips
Train	1,003,033 (69.7%)
Dev	15,987 (1.1%)
Test	16,213 (1.1%)

Training split coverage: 1,035,233 of 1,439,161 validated clips (71.9%)

The dataset contains 1439161 validated, 227823 invalidated, and 47244 unresolved clips. The average clip duration is 5.007 seconds.

Text corpus

Validated sentences: 1,404,857

Category	Count
Unvalidated sentences	28
Pending sentences	25
Rejected sentences	3
Reported sentences	634

The corpus contains 1,404,885 sentences: 1,404,857 validated and 28 unvalidated (25 pending review, 3 rejected), with 634 reported for review.

Sample

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

bacu no kwirinda amaraso Ibyaka Gutega Icyakora barasa
Aba afite ibyiringiro byo kuduca intege, ngo adutandukanye n'Imana.
iyi ni impano y'imana kandi umuntu wese agomba kwizera ko yavutse buri munsi
Ntabwo arumusore utanga byoroshye.
Umugabo wambaye umweru agenda yerekeza kuruzitiro

Sources

Source	Sentences
partner-5	185,286 (13.2%)
partner-7	162,644 (11.6%)
partner-2	155,065 (11.0%)
partner	136,039 (9.7%)
partner-6	101,960 (7.3%)
partner-8	83,992 (6.0%)
partner-10	64,494 (4.6%)
partner-11	57,305 (4.1%)
partner-9	56,254 (4.0%)
Other	401,818 (28.6%)

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

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