Common Voice Spontaneous Speech 4.0 - Lendu

led — Lendu (led)

This datasheet is for sps-corpus-4.0-2026-06-12 of the Mozilla Common Voice Spontaneous Speech dataset for Lendu [led - led]. The dataset contains 2851 clips representing 15.14 hours of recorded speech (10.08 hours validated) from 26 speakers.

Data splits for modelling

The dataset clips are categorised by transcription status and training-set assignment. The following tables summarise the distribution.

Audio clips

Training splits

Training split coverage: 1,897 of 1,897 transcribed & validated clips (100.0%)

Transcriptions

Transcription status

Samples

Questions

There follows a randomly selected sample of questions used in the corpus.

1. Nyi njèy ní ddu ya djì nì kwò ro?

2. Li-djòkpa ddadha djá njèy ní ddù bba thìdha mí lò ró?

3. Dròdró ní bbalè dà ní ŋǎchú ní nzàdha jì òluw nyìdhí bba ó?

4. Mediya ó lò à sǎ ków ŋǎchú í ddu ó?

5. Nyi dhò ŋá lò nà dùdú ní dhì ní dhì nzòw tso tso kwo cha ì chùw ì zz̀ nì?

Responses

There follows a randomly selected sample of transcribed responses from the corpus.

1. Nà ndrǔ dho bbiydha mí tuw ddí nì klǒw nyû mí tuw ddí nì klǒw ddawa chùwdha mí tuw ddí nì klǒw dda 'ùwdha mí tuw ddí nì klǒ à lêy ndrǔ dhí djiy nì kpákpá ní nga ó

2. Lò tèydha ndrǔ dhò ddìnga ó Ddrà mí lò tdràdha ndr ǔdhò ndrǔ kǎnga gbádha nà ndeyní ndrǔ déy ddì nì bbalè ní jǐ nà ka léy ndrǔ ddìnga ó ka léy ndrǔ ddá ì zz ó lò

3. À kà LC njǎ cha lu ní à tsùw ì kà ó nì bbalè ndrǔ ddá gu njàddî mà bba cha ngǎjì ní ì jì nà ní bbalè ì tsùw mà kà ó nì ndaní màdhí bba déy shú

4. À lêy bbalè bbà ngǎjìní rù thódha cha ndèy swá li bbalè kǎ nì gu à lêy bbalè dhí déydha jì ngû lǎní li thódha jì nà

5. Fú mbrukpa jì ma ka dho ndanà nza ó njí njèy nì jì à nì djow, lupángà, mm ndèymí lǒkò fú nì ddiy má ka dho ndanà njí njèynì

Fields

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

Get involved

Community links

• Common Voice translators on Pontoon

• Common Voice Communities

Discussions

• Common Voice on Matrix

• Common Voice on Discourse

• Common Voice on Discord

• Common Voice on Telegram

Contribute

• Contribute questions

• Validate questions

• Answer questions

• Transcribe recordings

• Validate transcriptions

Acknowledgements

Funding

This dataset was partially funded by the Open Multilingual Speech Fund managed by Mozilla Common Voice.

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

1. 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