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Task: ASR
Release Date: 3/22/2026
Format: MP3
Size: 282.22 MB
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A collection of read speech recordings in Nigerian Pidgin English (pcm).
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.
pcm)This datasheet is for cv-corpus-25.0-2026-03-09 of the Mozilla Common Voice Scripted Speech dataset for Nigerian Pidgin English [pcm - pcm]. The dataset contains 8944 clips representing 14.42 hours of recorded speech (12.5 hours validated) from 59 speakers, recorded from a text corpus of 987 sentences.
According to Ethnologue online, Nigerian Pidgin is a language of wider communication that originated in Nigeria. It is an English-based creole and used primarily as a second language.
| Code | Accent | Clips | Speakers |
|---|---|---|---|
| - | 15 (0.2%) | 2 (3.4%) |
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 | - | - |
| female_feminine | Female, feminine | 1,325 (14.8%) | 2 (3.4%) |
| transgender | Transgender | - | - |
| non-binary | Non-binary | - | - |
| do_not_wish_to_say | Prefer not to say | - | - |
| - | Unspecified | 7,619 (85.2%) | 59 (100.0%) |
Gender declared: 1,325 of 8,944 clips (14.8%), 0 of 59 speakers (0.0%)
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 | - | - |
| twenties | Twenties | - | - |
| thirties | Thirties | 996 (11.1%) | 3 (5.1%) |
| fourties | Fourties | 1,454 (16.3%) | 2 (3.4%) |
| fifties | Fifties | - | - |
| sixties | Sixties | - | - |
| seventies | Seventies | - | - |
| eighties | Eighties | - | - |
| nineties | Nineties | - | - |
| - | Unspecified | 6,494 (72.6%) | 57 (96.6%) |
Age declared: 2,450 of 8,944 clips (27.4%), 2 of 59 speakers (3.4%)
Clip buckets
| Bucket | Clips |
|---|---|
| Validated | 7,754 (86.7%) |
| Invalidated | 52 (0.6%) |
| Other | 1,138 (12.7%) |
Training splits
| Split | Clips |
|---|---|
| Train | 335 (4.3%) |
| Dev | 326 (4.2%) |
| Test | 326 (4.2%) |
Training split coverage: 987 of 7,754 validated clips (12.7%)
The dataset contains 7754 validated, 52 invalidated, and 1138 unresolved clips. The average clip duration is 5.808 seconds.
Validated sentences: 987
| Category | Count |
|---|---|
| Unvalidated sentences | - |
| Pending sentences | - |
| Rejected sentences | - |
| Reported sentences | - |
The corpus contains 987 sentences: 987 validated and 0 unvalidated (0 pending review, 0 rejected), with 0 reported for review.
Latin scripts
There follows a randomly selected sample of five sentences from the corpus.
No dey disguise, be honest with your problems.
My bother wen yu see branch of tree break for middle afternoon mek yu run ooo.
Fly wey no dey hear word na im dey follow dead body enter grave.
So tell me, how yu tak get di moni?
I look mai pocket, no dey money.
| Source | Sentences |
|---|---|
| Own Submission | 987 (100.0%) |
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.tsvThe 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.tsvThe 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)
https://commonvoice.mozilla.org/pcm/
Emmanuel Ngue Um , Adéwùnmí ADÉTỌ̀MÍWÁ Anuoluwapọ , Augustine Emeka Ugwumgbo , Affiong Fred Effiom , Joseph Yohanna Joseph ,
Ngué Um E, Ngo Tjomb EEC, Dibengue FL, Banum Manguele BM, Abo Djoulde B, Nyambe MA, Atangana Eloundou BM, Ngami Kamagoua JS, Mpouda Avom J, Nyobe Z, Eloundou Eyenga EG, Likwai AP (2025) Speech Technologies Datasets for African Under-Served Languages. Proceedings of the Eight Workshop on the Use of Computational Methods in the Study of Endangered Languages, edited by Lachler J, Agyapong G, Arppe A, Moeller S, Chaudhary A, Rijhwani S, Rosenblum D. URL Association for Computational Linguistics (ACL).
This dataset was partially funded by the Open Multilingual Speech Fund managed by Mozilla Common Voice.
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