Voice of a Continent: Mapping Africa’s Speech Technology Frontier

AbdelRahim A. Elmadany, Sang Yun Kwon, Hawau Olamide Toyin, Alcides Alcoba Inciarte, Hanan Aldarmaki, Muhammad Abdul-Mageed


Abstract
Africa’s rich linguistic diversity remains significantly underrepresented in speech technologies, creating barriers to digital inclusion. To alleviate this challenge, we systematically map the continent’s speech space of datasets and technologies, leading to a new comprehensive benchmark SimbaBench for downstream African speech tasks. Using SimbaBench, we introduce the Simba family of models, achieving state-of-the-art performance across multiple African languages and speech tasks. Our benchmark analysis reveals critical patterns in resource availability, while our model evaluation demonstrates how dataset quality, domain diversity, and language family relationships influence performance across languages. Our work highlights the need for expanded speech technology resources that better reflect Africa’s linguistic diversity and provides a solid foundation for future research and development efforts toward more inclusive speech technologies.
Anthology ID:
2025.emnlp-main.559
Volume:
Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing
Month:
November
Year:
2025
Address:
Suzhou, China
Editors:
Christos Christodoulopoulos, Tanmoy Chakraborty, Carolyn Rose, Violet Peng
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
11039–11061
Language:
URL:
https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.emnlp-main.559/
DOI:
10.18653/v1/2025.emnlp-main.559
Bibkey:
Cite (ACL):
AbdelRahim A. Elmadany, Sang Yun Kwon, Hawau Olamide Toyin, Alcides Alcoba Inciarte, Hanan Aldarmaki, and Muhammad Abdul-Mageed. 2025. Voice of a Continent: Mapping Africa’s Speech Technology Frontier. In Proceedings of the 2025 Conference on Empirical Methods in Natural Language Processing, pages 11039–11061, Suzhou, China. Association for Computational Linguistics.
Cite (Informal):
Voice of a Continent: Mapping Africa’s Speech Technology Frontier (Elmadany et al., EMNLP 2025)
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PDF:
https://preview.aclanthology.org/author-page-yu-wang-polytechnic/2025.emnlp-main.559.pdf
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 2025.emnlp-main.559.checklist.pdf