Common Voice Spontaneous Speech 1.0 - Konzo

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License:

CC0-1.0

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Steward:

Common Voice

Task: ASR

Release Date: 9/15/2025

Format: MP3

Size: 279.90 MB


Description

A collection of spontaneous spoken phrases in Konzo.

Considerations

Restrictions/Special Constraints

You agree that you will not re-host or re-share this dataset

Forbidden Usage

You agree not to attempt to determine the identity of speakers in the Common Voice dataset

Processes

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.

Metadata

Konzo — Konzo (koo)

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 1.0 of the the Mozilla Common Voice Spontaneous Speech dataset for Konzo (koo). The dataset contains 3255 clips representing 15 hours of recorded speech (11 hours validated) from 28 speakers.

Demographic information

The dataset includes the following distribution of age and gender.

Gender

Self-declared gender information, frequency refers to the number of clips annotated with this gender.

Age

Self-declared age information, frequency refers to the number of clips annotated with this age band.

Data splits for modelling

SplitCount
Train2411
Dev362

Transcriptions

  • Prompts: 120

  • Duration: 53805852[ms]

  • Avg. Transcription Len: 93

  • Avg. Duration: 16.53[s]

  • Valid Duration: 36658.98[s]

  • Total hours: 14.95[h]

  • Valid hours: 10.18[h]

Questions

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

Nangatheya indi obuyingo bwaghe nʼerihiika lyaghe oko mutsutsa owʼemaleri?
Wukanza erikolha ki omo buthuku bwawu obundi obʼwuthethahingamo ahowukakolera?
Abana balere bakasatha misathu yahi omo kipindi kyenyu?
Nibitsibu byahayi ebyabandu abakulire bakatunga omwa kipindi kyaghu?
Eryigha erisikya lyangakangiriribwa lithi omo miyi nʼomo mathendekero omo Uganda?
Responses

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

Ebihendeka ebye rithahya abakali banene muli amalhwa obuholho bukabulha na bana sibalithoka erisoma ekyisomo ekyiwene
Nisinene okwa nguda kandi isyo silhobire omwa beyi kya kyikaleka ithwasikolesya kutsibu kutsibu
Wukayithekathekera erikesya erihumulha, neryo  iwimyaaa iwasaba, wukabya iwabiri saba neryo iwakesya. Iwalinda engyakya.
Erisondya emibiri  nobuyingo obuwene omu tawuni
Omughulhu ngowa enamalhuha ngathuka erikalha engathuka eriyuhumulya omughulhu ngabya engamayowa engamalhugha nganya amaghethe

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 30 seconds

Community links

Contribute

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