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Release Date: 9/17/2026
Format: MP3
Size: 8.58 GB
A collection of read speech recordings in Tamil (தமிழ்).
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.
ta)This datasheet is for cv-corpus-27.0-2026-09-11 of the Mozilla Common Voice Scripted Speech dataset for Tamil [தமிழ் - ta]. The dataset contains 247718 clips representing 425.42 hours of recorded speech (234.82 hours validated) from 984 speakers, recorded from a text corpus of 118,842 sentences.
| Code | Accent | Clips | Speakers |
|---|---|---|---|
| - | 5,139 (2.1%) | 50 (5.1%) |
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 | 46,918 (18.9%) | 306 (31.1%) |
| female_feminine | Female, feminine | 38,203 (15.4%) | 137 (13.9%) |
| transgender | Transgender | - | - |
| non-binary | Non-binary | - | - |
| do_not_wish_to_say | Prefer not to say | - | - |
| - | Unspecified | 162,597 (65.6%) | 645 (65.5%) |
Gender declared: 85,121 of 247,718 clips (34.4%), 339 of 984 speakers (34.5%)
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 | 9,429 (3.8%) | 24 (2.4%) |
| twenties | Twenties | 26,825 (10.8%) | 240 (24.4%) |
| thirties | Thirties | 29,463 (11.9%) | 112 (11.4%) |
| fourties | Fourties | 6,698 (2.7%) | 53 (5.4%) |
| fifties | Fifties | 6,090 (2.5%) | 24 (2.4%) |
| sixties | Sixties | 748 (0.3%) | 4 (0.4%) |
| seventies | Seventies | 4,814 (1.9%) | 4 (0.4%) |
| eighties | Eighties | 85 (0.0%) | 1 (0.1%) |
| nineties | Nineties | - | - |
| - | Unspecified | 163,566 (66.0%) | 629 (63.9%) |
Age declared: 84,152 of 247,718 clips (34.0%), 355 of 984 speakers (36.1%)
Clip buckets
| Bucket | Clips |
|---|---|
| Validated | 136,732 (55.2%) |
| Invalidated | 5,749 (2.3%) |
| Other | 105,237 (42.5%) |
Training splits
| Split | Clips |
|---|---|
| Train | 46,529 (34.0%) |
| Dev | 12,168 (8.9%) |
| Test | 12,241 (9.0%) |
Training split coverage: 70,938 of 136,732 validated clips (51.9%)
The dataset contains 136732 validated, 5749 invalidated, and 105237 unresolved clips. The average clip duration is 6.183 seconds.
Validated sentences: 118,292
| Category | Count |
|---|---|
| Unvalidated sentences | 550 |
| Pending sentences | 549 |
| Rejected sentences | 1 |
| Reported sentences | 3,437 |
The corpus contains 118,842 sentences: 118,292 validated and 550 unvalidated (549 pending review, 1 rejected), with 3,437 reported for review.
There follows a randomly selected sample of five sentences from the corpus.
| Source | Sentences |
|---|---|
| wikisource-ta | 99,615 (84.2%) |
| covost2-en_ta | 12,170 (10.3%) |
| sentence-collector | 6,115 (5.2%) |
| Other | 392 (0.3%) |
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
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