README.md

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language:
- ki
- so
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- luo
- mas

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---
⚠️ **IMPORTANT: Work in Progress**  
This dataset is not final. Updates will continue through **September 2025**.  
Please **use the latest version** for attribution, benchmarking and publications.

## Overview

**African Next Voices: Pilot Data Collection in Kenya** is part of a larger initiative to support African language speech technology. This project, funded by the **Gates Foundation**, is led by the **KenCorpus Consortium**, a coalition of Kenyan universities and research centers.

It includes **scripted** and **unscripted** speech across multiple domains and five languages, collected through ethical, community-led processes.

## 👥 Contributors

- **Maseno University** – Dholuo & Somali  
- **USIU-Africa** – Maasai  
- **Kabarak University** – Kalenjin  
- **DeKUT and LDRI** – Kikuyu

## 📚 Domains

- Agriculture & Food  
- Everyday Scenarios  
- Financial Transactions  
- Digital Government Services  
- Named Entity Recognition  
- Role Play  
- Extempore Stories  
- Healthcare  
- News & Media  
- Education & Technology  
- Customer Care Scenarios

## 🧑🏿‍💻 Use Cases

- Training ASR models  
- Local language research  
- Benchmarking multilingual and low-resource speech

## 🌍 Languages

| Language   | Dialects                  | ISO | No. Hours | Scripted (Hrs) | Unscripted (Hrs) | Total No. Hours | % Updated |
|------------|---------------------------|-----------|--------------|----------|----------|----------|----------|
| Dholuo     | Nyandwat, Milambo    | `luo`     | 750          | 195     | 528       | 723     | 96%       |
| Kikuyu     | Gĩ-Kabete, Ki-Mathira, Ki-Muranga, Ki-Ndia & Gĩ-Gichugu    | `kik`     | 750   | 183     | 571       | 754     | 100%       |
| Somali     | Maxatire                  | `som`     | 500          | 118     | 384       | 502     | 100%       |
| Kalenjin   | Nandi & Kipsigis          | `kln`     | 500          | 122     | 399       | 521     | 100%       |
| Maasai     | Kimasaai & Kisamburu      | `mas`     | 500          | 51    | 454       | 505     | 100%       |

## Unscripted Data

- Unscripted % of Dholuo Transcribed: 60%, Duration: 317 hrs
- Unscripted % of Kikuyu Transcribed: 68%, Duration: 381 hrs
- Unscripted % of Somali Transcribed: 100%, Duration: 502 hrs
- Unscripted % of Kalenjin Transcribed: 95%, Duration: 383 hrs
- Unscripted % of Maasai Transcribed: 100%, Duration: 505 hrs


## Dataset Splits


The dataset is divided into the following subsets:

- train (85%)
- dev (5%)
- dev_test (5%)
- test (5%) 🔒 – held out for future public leaderboards and shared tasks

*All subsets are speaker-disjoint to support fair benchmarking and minimise the risk of data leakage.*

## Dataset Columns

| Column Name       | Description                                                                 |
|-------------------|-----------------------------------------------------------------------------|
| `mediaPathId`     | Unique identifier for the audio file path                                   |
| `recorder_uuid`   | Unique ID assigned to the speaker or contributor                            |
| `domain`          | The content domain or topic category (e.g., Healthcare, Agriculture)        |
| `translatedText (for type:scripted)`  | English translation of the spoken content                                   |
| `actualSentence (for type:scripted)`  | Original utterance in the native language                                   |
| `duration`        | Length of the audio in seconds                                              |
| `sentenceSource`  | Indicates the origin of the sentence                                        |
| `language`        | Language of the utterance (e.g., Dholuo, Kikuyu)                            |
| `sentenceDialect` | Specific dialect variation used in the utterance                            |
| `type`            | Boolean flag indicating if the utterance was scripted or unscripted         |
| `transcript (for type:unscripted)`            | The text transcript from spontenuous speech        |
| `prompt type (for type:unscripted)`            | Prompt used in generating spontenuous speech        |

> More updates will be added *soon*.
> 
> ⚠️ *Disclaimer:* 
This dataset is provided for research and development of ASR and related technologies.
Any use that facilitates surveillance, discrimination, exploitation or unethical profiling is strictly prohibited.
The creators disclaim liability for misuse that violates ethical guidelines, privacy rights or community consent.

## 📎 License

[CC BY 4.0](https://creativecommons.org/licenses/by/4.0/)

## Language Leads and Resource Persons

| Language | Name                  | Role                      |
| -------- | --------------------- | ------------------------- |
| General  | Dr. Lilian Wanzare    | Principal Investigator    |
| Dholuo   | Dr. Vivian Oloo       | Language Lead             |
| Dholuo   | Rennish Mboya         | Language Lead             |
| Dholuo   | Francis Njiri         | Resource Person           |
| Dholuo   | Fidelis Anne Achieng  | Resource Person           |
| Dholuo   | Denis Okoth           | Resource Person           |
| Dholuo   | Kelvin Ndanya         | Resource Person           |
| Kikuyu   | Muchiri Nyaggah       | Language Lead             |
| Kikuyu   | Leonida Mutuku        | Language Lead             |
| Kikuyu   | Dr. Joseph Muguro     | Language Lead             |
| Kikuyu   | Prof. Ciira Maina     | Language Lead             |
| Kikuyu   | Anne Munira           | Resource Person           |
| Kikuyu   | Mary Kariuki          | Resource Person           |
| Kikuyu   | Veronica Kariuki      | Resource Person           |
| Kikuyu   | Suzanne Njuguna       | Resource Person           |
| Maasai   | Prof. Edward Ombui    | Language Lead             |
| Maasai   | David Mbelati         | Resource Person           |
| Maasai   | Peter Tikan           | Resource Person           |
| Maasai   | Justus Somoire        | Resource Person           |
| Kalenjin | Dr. Andrew Kipkebut   | Language Lead             |
| Kalenjin | Emmanuel Chesire      | Resource Person           |
| Kalenjin | Betty Jepkemei        | Resource Person           |
| Kalenjin | Zipporah Chepkemoi    | Resource Person           |
| Somali   | Mohamed Ali Muhumed   | Language Lead             |
| Somali   | Ibrahim Dubow Mohamed | Language Lead             |
| Somali   | Abdisalam Issack Abdi | Resource Person           |
| Somali   | Yaseen                | Resource Person           |


## Citation

```bibtex
@misc{africannextvoiceske2025,
  title = {African Next Voices: Pilot Data Collection in Kenya},
  author = {KenCorpus Consortium},
  year = {2025},
  note = {Work in Progress. XX.},
  url = {xx}
}