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Release Date: 9/17/2026
Format: MP3
Size: 270.08 MB
A collection of spontaneous responses to questions in Lendu (Lendu).
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.
led)This datasheet is for sps-corpus-5.0-2026-09-11 of the Mozilla Common Voice Spontaneous Speech dataset for Lendu [Lendu - led]. The dataset contains 2851 clips representing 15.14 hours of recorded speech (10.08 hours validated) from 26 speakers.
The dataset clips are categorised by transcription status and training-set assignment. The following tables summarise the distribution.
| Bucket | Clips | % |
|---|---|---|
| Transcribed & Validated | 1,897 | 66.5% |
| Transcribed & Pending | 30 | 1.1% |
| Not transcribed | 924 | 32.4% |
| Bucket | Clips | % |
|---|---|---|
| Train | 1,311 | 46.0% |
| Dev | 277 | 9.7% |
| Test | 309 | 10.8% |
| Unassigned | 954 | 33.5% |
Training split coverage: 1,897 of 1,897 transcribed & validated clips (100.0%)
| Bucket | Clips | % |
|---|---|---|
| Validated | 1,897 | 98.4% |
| Pending | 30 | 1.6% |
| Edited | 425 | 22.1% |
There follows a randomly selected sample of questions used in the corpus.
À jì mà njèy ddu ya mà njà ndèyli nì tsúwba ní li rónga tdǒw ro?
Ngèy tdràdha ɦuwdjò ní tuw ŋǎchú màdhí nzòw dhò?
Ŋá nì ní ndèy lǎní tuw màdhò ndanà cha ndèy thíy nì zòw nà nì li tsotso kwo ndana nì?
Zòw ní ŋá tǔwtǔw ní nga nà cha ndèy dhò li-gwíydha rr nyìdhí bba ó nì?
Nyi njèy ní ddu ngítss̀ djú nga mí nyù dzzdjú?
There follows a randomly selected sample of transcribed responses from the corpus.
Ndeyní ndrǔ tsǐ ì ró lò ndrǔ tsǐ ì dho ì rónga bbò ŋǎchú ddiy fú nga dzzdjú ndeyní ndrǔ tsǐ ya fú silimu mí klôw ní ŋà bbù ndeyní ndrǔ bbú ì ddǎwà chùwdha dhò
Ma léy nì mǎ ngá bba ónga déy lǎní tsùwdha nà dza kàtéy nga pwodha nà dzá nga gbúdha nà ndèymí dza rónga kpadha nà
Dhì nzò ní nzòw nì gǒw ków dèyddù ní njǎddí ndrǔ nì gòw děyddù mí nzòw nà ndrǔ nì ngu wá ì ɦíy dè ì ɦíy nì ngu dey rà ngu dey nzòw djá nì nzòw djú lò ddey nzǐ
Nyi njey ní ddu nyì mí déydha mí sâ ó? Ma bbí nì mùpírà
À nì jǐ ndrǔ léy nzòw tsǐ Ddrà mí lò nzòw déy ddí Ddrà-dzà ó ndaní nzǐ nzów bbíy ngéy ní tuw òluw à nì jǐ ndrǔ léy nzòw déy sùkúl ó nzòw sǒ ddí nzǒw déy nyǔ'wiy nà ndaní nzòw ddí déy bblǒ thíy nà ì thíy ò ndaní nzòw ddí déy nzǐ ì dyasi njěy ngǎjìní nzòw ká dey bbalè má cha ìdhò dey ney lǎní ì dyási nà
Each row of a tsv file represents a single audio clip, and contains the following information:
client_id - hashed UUID of a given user
audio_id - numeric id for audio file
audio_file - audio file name
duration_ms - duration of audio in milliseconds
prompt_id - numeric id for prompt
prompt - question for user
transcription - transcription of the audio response
votes - number of people that who approved a given transcript
age - age of the speaker1
gender - gender of the speaker1
language - language name
split - for data modelling, which subset of the data does this clip pertain to
char_per_sec - how many characters of transcription per second of audio
quality_tags - some automated assessment of the transcription--audio pair, separated by |
transcription-length - character per second under 3 characters per second
speech-rate - characters per second over 30 characters per second
short-audio - audio length under 2 seconds
long-audio - audio length over 5 minutes
non-allowed-script - transcription contains characters from a writing system not associated with the language
mixed-script-words - a single word contains characters from multiple writing systems
mixed-script-transcription - transcription spans multiple writing systems, but each word consistently uses only one
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