Common Voice Scripted Speech 25.0 - Belarusian

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License:

CC0-1.0

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Steward:

Common Voice

Task: ASR

Release Date: 3/24/2026

Format: MP3

Size: 36.21 GB


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Description

A collection of read speech recordings in Belarusian (Беларуская).

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

Беларуская — Belarusian (be)

This datasheet is for cv-corpus-25.0-2026-03-09 of the Mozilla Common Voice Scripted Speech dataset for Belarusian [Беларуская - be]. The dataset contains 1419713 clips representing 1890.19 hours of recorded speech (1816.01 hours validated) from 8604 speakers, recorded from a text corpus of 381,479 sentences.

Language

Accents

CodeAccentClipsSpeakers
-827 (0.1%)15 (0.2%)

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, masculine81,495 (5.7%)516 (6.0%)
female_feminineFemale, feminine102,005 (7.2%)724 (8.4%)
transgenderTransgender--
non-binaryNon-binary--
do_not_wish_to_sayPrefer not to say40 (0.0%)1 (0.0%)
-Unspecified1,236,173 (87.1%)8,088 (94.0%)

Gender declared: 183,540 of 1,419,713 clips (12.9%), 516 of 8,604 speakers (6.0%)

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.

CodeAgeClipsSpeakers
teensTeens10,698 (0.8%)84 (1.0%)
twentiesTwenties48,758 (3.4%)540 (6.3%)
thirtiesThirties61,914 (4.4%)479 (5.6%)
fourtiesFourties54,488 (3.8%)127 (1.5%)
fiftiesFifties1,323 (0.1%)22 (0.3%)
sixtiesSixties1,239 (0.1%)8 (0.1%)
seventiesSeventies103 (0.0%)3 (0.0%)
eightiesEighties--
ninetiesNineties--
-Unspecified1,241,190 (87.4%)8,074 (93.8%)

Age declared: 178,523 of 1,419,713 clips (12.6%), 530 of 8,604 speakers (6.2%)

Data splits for modelling

Clip buckets

BucketClips
Validated1,363,996 (96.1%)
Invalidated36,985 (2.6%)
Other18,732 (1.3%)

Training splits

SplitClips
Train347,710 (25.5%)
Dev15,879 (1.2%)
Test15,875 (1.2%)

Training split coverage: 379,464 of 1,363,996 validated clips (27.8%)

The dataset contains 1363996 validated, 36985 invalidated, and 18732 unresolved clips. The average clip duration is 4.793 seconds.

Text corpus

Validated sentences: 379,562

CategoryCount
Unvalidated sentences1,917
Pending sentences1,768
Rejected sentences149
Reported sentences3,217

The corpus contains 381,479 sentences: 379,562 validated and 1,917 unvalidated (1,768 pending review, 149 rejected), with 3,217 reported for review.

Sample

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

  1. Можа, прыйшоў час усё растлумачыць?

  2. У імя гэтага ідэалу ўвесь гэты час ідзе змаганне.

  3. За гэты час ніхто не з'явіўся.

  4. Возера зімой большай часткай пакрыта снегам і лёдам.

  5. Тады межы былі цалкам перакрытыя.

Sources

SourceSentences
euroradio-sampled-sentences-non-blacklisted97,751 (25.8%)
wiki85,295 (22.5%)
knihi69,546 (18.3%)
novychas-sampled-sentences-non-blacklisted52,619 (13.9%)
nashaniva-sampled-sentences-non-blacklisted37,042 (9.8%)
euroradio-sampled-sentences-non-blacklisted-batch218,692 (4.9%)
novychas-sampled-sentences-non-blacklisted-batch217,218 (4.5%)
Other1,399 (0.4%)

Text domains

CodeDomainClipsSpeakers
generalGeneral33 (0.0%)13 (0.2%)
agriculture_foodAgriculture and Food--
automotive_transportAutomotive and Transport--
financeFinance--
service_retailService and Retail4 (0.0%)4 (0.0%)
healthcareHealthcare--
history_law_governmentHistory, Law and Government48 (0.0%)19 (0.2%)
media_entertainmentMedia and Entertainment--
nature_environmentNature and Environment4 (0.0%)4 (0.0%)
news_current_affairsNews and Current Affairs8 (0.0%)6 (0.1%)
technology_roboticsTechnology and Robotics8 (0.0%)7 (0.1%)
language_fundamentalsLanguage Fundamentals--

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