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Release Date: 9/17/2026
Format: MP3
Size: 79.65 GB
A collection of read speech recordings in Catalan (català).
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.
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.
ca)This datasheet is for cv-corpus-27.0-2026-09-11 of the Mozilla Common Voice Scripted Speech dataset for Catalan [català - ca]. The dataset contains 2732403 clips representing 3940.31 hours of recorded speech (3392.44 hours validated) from 36990 speakers, recorded from a text corpus of 1,327,505 sentences.
Catalan is a Romance language spoken by about 9 milion people mainly on the Mediterranean coast of the Iberian Peninsula.
It is an official language, along with Spanish or Castilian, in Catalonia, the Balearic Islands and the Valencian Community (where it is also called Valencian), while it is the only official language of the Principality of Andorra. It is also spoken, and has some administrative recognition, without reaching official status, in the eastern part of the autonomous community of Aragon, in the French department Pyrénées-Orientales (Eastern Pyrenees) and in the city of Alghero, on the island of Sardinia (Italy).
The language evolved from Vulgar Latin in the Middle Ages.
The main variants of Catalan are:
| Code | Variant | Clips | Speakers |
|---|---|---|---|
| ca-central | Central | 1,430,755 (52.4%) | 6,443 (17.4%) |
| ca-nwestern | Nord-Occidental | 106,872 (3.9%) | 742 (2.0%) |
| ca-valencia-tortosi | Tortosí | 44,564 (1.6%) | 21 (0.1%) |
| ca-northern | Septentrional | 33,176 (1.2%) | 255 (0.7%) |
| ca-balear | Balear | 29,103 (1.1%) | 630 (1.7%) |
| ca-valencia-southern | Valencià meridional | 14,984 (0.5%) | 101 (0.3%) |
| ca-valencia-northern | Valencià septentrional | 11,939 (0.4%) | 19 (0.1%) |
| ca-valencia-alacant | Alacantí | 7,311 (0.3%) | 73 (0.2%) |
| ca-valencia-central | Valencià central | 978 (0.0%) | 55 (0.1%) |
| Code | Accent | Clips | Speakers |
|---|---|---|---|
| valencian | valencià | 114,994 (4.2%) | 702 (1.9%) |
| central | central | 101,568 (3.7%) | 745 (2.0%) |
| northwestern | nord-occidental | 49,185 (1.8%) | 121 (0.3%) |
| learner_other | aprenent (recent, des d'altres llengües) | 5,941 (0.2%) | 19 (0.1%) |
| balearic | balear | 3,645 (0.1%) | 76 (0.2%) |
| northern | septentrional | 1,677 (0.1%) | 49 (0.1%) |
| learner_es | aprenent (recent, des del castellà) | 1,322 (0.0%) | 54 (0.1%) |
| - | Other | 180,030 (6.6%) | 786 (2.1%) |
The dataset includes the following self-declared age and gender distributions. A coverage summary is shown below each table.
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 | 1,423,654 (52.1%) | 3,816 (10.3%) |
| female_feminine | Female, feminine | 571,169 (20.9%) | 3,350 (9.1%) |
| transgender | Transgender | - | - |
| non-binary | Non-binary | - | - |
| do_not_wish_to_say | Prefer not to say | 326 (0.0%) | 2 (0.0%) |
| - | Unspecified | 737,244 (27.0%) | 33,264 (89.9%) |
Gender declared: 1,995,159 of 2,732,403 clips (73.0%), 3,726 of 36,990 speakers (10.1%)
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 | 23,010 (0.8%) | 352 (1.0%) |
| twenties | Twenties | 106,326 (3.9%) | 1,133 (3.1%) |
| thirties | Thirties | 124,399 (4.6%) | 1,220 (3.3%) |
| fourties | Fourties | 320,055 (11.7%) | 1,861 (5.0%) |
| fifties | Fifties | 535,136 (19.6%) | 1,638 (4.4%) |
| sixties | Sixties | 788,323 (28.9%) | 925 (2.5%) |
| seventies | Seventies | 112,029 (4.1%) | 206 (0.6%) |
| eighties | Eighties | 5,910 (0.2%) | 11 (0.0%) |
| nineties | Nineties | 58 (0.0%) | 4 (0.0%) |
| - | Unspecified | 717,157 (26.2%) | 33,187 (89.7%) |
Age declared: 2,015,246 of 2,732,403 clips (73.8%), 3,803 of 36,990 speakers (10.3%)
Clip buckets
| Bucket | Clips |
|---|---|
| Validated | 2,352,488 (86.1%) |
| Invalidated | 146,331 (5.4%) |
| Other | 233,584 (8.5%) |
Training splits
| Split | Clips |
|---|---|
| Train | 1,219,173 (51.8%) |
| Dev | 16,416 (0.7%) |
| Test | 16,416 (0.7%) |
Training split coverage: 1,252,005 of 2,352,488 validated clips (53.2%)
The dataset contains 2352488 validated, 146331 invalidated, and 233584 unresolved clips. The average clip duration is 5.191 seconds.
Validated sentences: 1,310,406
| Category | Count |
|---|---|
| Unvalidated sentences | 17,099 |
| Pending sentences | 13,912 |
| Rejected sentences | 3,187 |
| Reported sentences | 10,213 |
The corpus contains 1,327,505 sentences: 1,310,406 validated and 17,099 unvalidated (13,912 pending review, 3,187 rejected), with 10,213 reported for review.
Catalan is written using the Latin alphabet (abcdefghijklmnopqrstuvwxyz), with the special characters ç and l·l. In addition, vowels can be accented (à, è, é, í, ò, ó, ú, ü, ï). The characters - (hyphen) and ' (apostrophe) are also part of Catalan orthography.
a b c ç d e f g h i j k l m n o p q r s t u v w x y z à è é í ò ó ú ï ü
There follows a randomly selected sample of five sentences from the corpus.
| Source | Sentences |
|---|---|
| wiki | 424,596 (32.4%) |
| covost2-ca | 262,235 (20.0%) |
| frases_agenda | 143,004 (10.9%) |
| new_catalan_cc0_corpus | 107,631 (8.2%) |
| new_sentences_from_catalan_newswire | 58,141 (4.4%) |
| Projecte Aina datasets sentences. CoQCat subset. | 57,588 (4.4%) |
| pccd | 33,674 (2.6%) |
| marius_serra_sentences | 32,114 (2.5%) |
| sentence-collector | 24,896 (1.9%) |
| Other | 165,984 (12.7%) |
| Code | Domain | Clips | Speakers |
|---|---|---|---|
| general | General | 2,059 (0.1%) | 109 (0.3%) |
| agriculture_food | Agriculture and Food | 75 (0.0%) | 20 (0.1%) |
| automotive_transport | Automotive and Transport | 42 (0.0%) | 17 (0.0%) |
| finance | Finance | 4 (0.0%) | 3 (0.0%) |
| service_retail | Service and Retail | 66 (0.0%) | 17 (0.0%) |
| healthcare | Healthcare | 42 (0.0%) | 20 (0.1%) |
| history_law_government | History, Law and Government | 72 (0.0%) | 25 (0.1%) |
| media_entertainment | Media and Entertainment | 53 (0.0%) | 14 (0.0%) |
| nature_environment | Nature and Environment | 156 (0.0%) | 25 (0.1%) |
| news_current_affairs | News and Current Affairs | 45 (0.0%) | 19 (0.1%) |
| technology_robotics | Technology and Robotics | 38 (0.0%) | 19 (0.1%) |
| language_fundamentals | Language Fundamentals | 45 (0.0%) | 17 (0.0%) |
It is recommended to normalize instances of the geminate L, which can take the equivalent forms of l·l or ŀl.
Each row of a tsv file represents a single audio clip, and contains the following information:
client_id - hashed UUID of a given userpath - relative path of the audio filesentence - the sentence to be read aloudsentence_id - unique identifier for the sentencesentence_domain - domain classification(s) of the sentenceup_votes - number of people who said audio matches the textdown_votes - number of people who said audio does not match textage - age of the speaker1gender - gender of the speaker1accents - accents of the speaker1variant - variant of the language1locale - locale code of the languagesegment - if sentence belongs to a custom dataset segment, it will be listed herevalidated_sentences.tsvThe validated_sentences.tsv file contains one row per validated sentence in the text corpus:
sentence_id - unique identifier for the sentencesentence - the sentence textvariant - the variant of the languagesentence_domain - the domain(s) the sentence belongs tosource - the source the sentence was collected fromis_used - whether the sentence is still in circulation for recordingclips_count - number of clips recorded for this sentenceunvalidated_sentences.tsvThe unvalidated_sentences.tsv file contains one row per unvalidated sentence in the text corpus:
sentence_id - unique identifier for the sentencesentence - the sentence textvariant - the variant of the languagesentence_domain - the domain(s) the sentence belongs tosource - the source the sentence was collected fromup_votes - number of upvotes the sentence receiveddown_votes - number of downvotes the sentence receivedstatus - current status of the sentence (pending or rejected)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.
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