Common Voice Scripted Speech 25.0 - Spanish

License:

CC0-1.0

Steward:

Common Voice

Task: ASR

Release Date: 3/24/2026

Format: MP3

Size: 48.23 GB

Description

A collection of read speech recordings in Spanish (Español).

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

Español — Spanish (`es`)

This datasheet is for cv-corpus-25.0-2026-03-09 of the Mozilla Common Voice Scripted Speech dataset for Spanish [Español - es]. The dataset contains 1678430 clips representing 2275.15 hours of recorded speech (593.33 hours validated) from 26896 speakers, recorded from a text corpus of 1,087,233 sentences.

Language

Accents

Code	Accent	Clips	Speakers
mexicano	México	879,470 (52.4%)	1,379 (5.1%)
surpeninsular	España: Sur peninsular (Andalucia, Extremadura, Murcia)	177,373 (10.6%)	260 (1.0%)
nortepeninsular	España: Norte peninsular (Asturias, Castilla y León, Cantabria, País Vasco, Navarra, Aragón, La Rioja, Guadalajara, Cuenca)	66,633 (4.0%)	634 (2.4%)
andino	Andino-Pacífico: Colombia, Perú, Ecuador, oeste de Bolivia y Venezuela andina	38,723 (2.3%)	946 (3.5%)
centrosurpeninsular	España: Centro-Sur peninsular (Madrid, Toledo, Castilla-La Mancha)	30,573 (1.8%)	509 (1.9%)
rioplatense	Rioplatense: Argentina, Uruguay, este de Bolivia, Paraguay	23,500 (1.4%)	573 (2.1%)
caribe	Caribe: Cuba, Venezuela, Puerto Rico, República Dominicana, Panamá, Colombia caribeña, México caribeño, Costa del golfo de México	21,830 (1.3%)	581 (2.2%)
canario	España: Islas Canarias	16,193 (1.0%)	240 (0.9%)
americacentral	América central	12,689 (0.8%)	376 (1.4%)
chileno	Chileno: Chile, Cuyo	12,569 (0.7%)	295 (1.1%)
filipinas	Español de Filipinas	606 (0.0%)	3 (0.0%)
-	Other	6,569 (0.4%)	224 (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	931,457 (55.5%)	4,510 (16.8%)
female_feminine	Female, feminine	524,679 (31.3%)	1,818 (6.8%)
transgender	Transgender	-	-
non-binary	Non-binary	-	-
do_not_wish_to_say	Prefer not to say	15 (0.0%)	3 (0.0%)
-	Unspecified	222,279 (13.2%)	21,276 (79.1%)

Gender declared: 1,456,151 of 1,678,430 clips (86.8%), 5,620 of 26,896 speakers (20.9%)

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	131,769 (7.9%)	736 (2.7%)
twenties	Twenties	883,187 (52.6%)	2,924 (10.9%)
thirties	Thirties	155,752 (9.3%)	1,270 (4.7%)
fourties	Fourties	46,508 (2.8%)	951 (3.5%)
fifties	Fifties	70,809 (4.2%)	532 (2.0%)
sixties	Sixties	174,889 (10.4%)	172 (0.6%)
seventies	Seventies	791 (0.0%)	28 (0.1%)
eighties	Eighties	246 (0.0%)	4 (0.0%)
nineties	Nineties	128 (0.0%)	5 (0.0%)
-	Unspecified	214,351 (12.8%)	21,040 (78.2%)

Age declared: 1,464,079 of 1,678,430 clips (87.2%), 5,856 of 26,896 speakers (21.8%)

Data splits for modelling

Clip buckets

Bucket	Clips
Validated	437,718 (26.1%)
Invalidated	95,120 (5.7%)
Other	1,145,592 (68.3%)

Training splits

Split	Clips
Train	358,330 (81.9%)
Dev	15,902 (3.6%)
Test	15,902 (3.6%)

Training split coverage: 390,134 of 437,718 validated clips (89.1%)

The dataset contains 437718 validated, 95120 invalidated, and 1145592 unresolved clips. The average clip duration is 4.88 seconds.

Text corpus

Validated sentences: 1,082,350

Category	Count
Unvalidated sentences	4,883
Pending sentences	3,901
Rejected sentences	982
Reported sentences	2,644

The corpus contains 1,087,233 sentences: 1,082,350 validated and 4,883 unvalidated (3,901 pending review, 982 rejected), with 2,644 reported for review.

Sample

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

Es considerado santo mártir por la Iglesia Ortodoxa de Georgia.
"Los elementos que componen el emblema estatal no están atados a ningún simbolismo ""oficial""."
Así que ahora mismo digo, no, no creo que ese fuera el caso.
Y de altísimo octanaje artístico.
La cola no es de tipo prensil.

Sources

Source	Sentences
wiki	1,062,101 (98.4%)
sentence-collector	14,245 (1.3%)
Other	3,055 (0.3%)

Text domains

Code	Domain	Clips	Speakers
general	General	46 (0.0%)	27 (0.1%)
agriculture_food	Agriculture and Food	1 (0.0%)	1 (0.0%)
automotive_transport	Automotive and Transport	4 (0.0%)	3 (0.0%)
finance	Finance	6 (0.0%)	4 (0.0%)
service_retail	Service and Retail	3 (0.0%)	3 (0.0%)
healthcare	Healthcare	4 (0.0%)	2 (0.0%)
history_law_government	History, Law and Government	37 (0.0%)	24 (0.1%)
media_entertainment	Media and Entertainment	8 (0.0%)	5 (0.0%)
nature_environment	Nature and Environment	12 (0.0%)	10 (0.0%)
news_current_affairs	News and Current Affairs	19 (0.0%)	13 (0.0%)
technology_robotics	Technology and Robotics	22 (0.0%)	11 (0.0%)
language_fundamentals	Language Fundamentals	8 (0.0%)	5 (0.0%)

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