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License:
CC0-1.0
Steward:
Common Voice
Task: ASR
Release Date: 12/5/2025
Format: MP3
Size: 268.85 MB
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A collection of spontaneous spoken phrases in Lendu.
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 has been generated automatically, we would love to include more information, if you would like to help out, get in touch!
This datasheet is for version 2.0 of the the Mozilla Common Voice Spontaneous Speech dataset
for Lendu (led). The dataset contains 2857 clips representing 16 hours of recorded
speech (11 hours validated) from 26 speakers.
| Split | Count |
|---|---|
| Train | 1292 |
| Test | 356 |
| Dev | 354 |
Prompts: 120
Duration: 15:33:06 [h:m:s]
Avg. Transcription Len: 160
Avg. Duration: 19.6[s]
Valid Duration: 37728.72[s]
Total hours: 15.55[h]
Valid hours: 10.48[h]
There follows a randomly selected sample of questions used in the corpus.
Ŋá tuw jì nà nyìdhí bba ó bbalè chùw ní bba ó lò ndèymí cha ndèy nì ndèy njěy bba ó nì lò nà?
Ddudha biki-biki ndèymí gari nà ní chòw nì bbiydha mí ddiy njanja nì màdhí bba ó?
Ddrǒngóní nzadha ní ddu cha ndèy nì djow djá nzà nyìdhí bba ó nì?
Màdhò nzòw gwǐy ŋǎchú màdhí pbúw ó lò nà?
Zòw ní ŋá tǔwtǔw ní nga nà cha ndèy dhò li-gwíydha rr nyìdhí bba ó nì?
There follows a randomly selected sample of transcribed responses from the corpus.
Bba ó bbalè chuw nì lò má ndèy shi nì ka pey nì sǐmù njàddí sâ nà ka cho ka chó nì bbalè í rónga nà njàddí sâ nà ka rr nì radio ó njàddí sâ nà ka rà njàddí li cho à swa bbalè dho bba kǎ nja sâ ka rà ngu tdiytdiy ní lò njèy cha ndèy dho lò mbà ndanà bbalè dè fúnìchú ma chuw nì lo
À nì chow nì bbiydha mà dho ddiydhò à nì ma djùtey mbǎ zěy à nì màtsá ddiy ddí tduw drǒngó ma rà shì zěy cha ma tdè rǎ mí nga ò
Nyû mí dzz̀ chey nì ji nì ngǎ ddiy dyesí mí klǒw nì rŕ ddiy bbiydha ddì nì nga ó ddù ràdha ngéyní nga ò
Nzòw ka dho mba ddìnga ó ney ka vi mbà nzòw ley gudjò à ley ka gwiy ndanà fúndrǔ bbúw mí lò ró ngwo mànà ngèy ddà tdràdha manà à leě njàddí sâ nà ddí djuw mà ney ka vi mba ndrǔló nà ndaní cha ka mbǎ ndanà bbúw ó lò nzòw dho
Lò nì ngú nyi dhò tǔw nyì dhí nzòw ddí rà rà somu ò nzǐ litsìdha bbalè nà nì rà tdè ngǎ déydha ddì nì ddí ra tdè ngǎ tdíytdíy ní lò má ndèy nì ndèy njěy nì tsì dha ddí rà tdè klǒw fú nì zòw rà ley ní ddiy
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 30 seconds
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