Bemba Speech Translation: Exploring a Low-Resource African Language

Muhammad Hazim Al Farouq, Aman Kassahun Wassie, Yasmin Moslem


Abstract
This paper describes our system submission to the International Conference on Spoken Language Translation (IWSLT 2025), low-resource languages track, namely for Bemba-to-English speech translation. We built cascaded speech translation systems based on Whisper and NLLB-200, and employed data augmentation techniques, such as back-translation. We investigate the effect of using synthetic data and discuss our experimental setup.
Anthology ID:
2025.iwslt-1.37
Volume:
Proceedings of the 22nd International Conference on Spoken Language Translation (IWSLT 2025)
Month:
July
Year:
2025
Address:
Vienna, Austria (in-person and online)
Editors:
Elizabeth Salesky, Marcello Federico, Antonis Anastasopoulos
Venues:
IWSLT | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
354–359
Language:
URL:
https://preview.aclanthology.org/acl25-workshop-ingestion/2025.iwslt-1.37/
DOI:
Bibkey:
Cite (ACL):
Muhammad Hazim Al Farouq, Aman Kassahun Wassie, and Yasmin Moslem. 2025. Bemba Speech Translation: Exploring a Low-Resource African Language. In Proceedings of the 22nd International Conference on Spoken Language Translation (IWSLT 2025), pages 354–359, Vienna, Austria (in-person and online). Association for Computational Linguistics.
Cite (Informal):
Bemba Speech Translation: Exploring a Low-Resource African Language (Hazim Al Farouq et al., IWSLT 2025)
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PDF:
https://preview.aclanthology.org/acl25-workshop-ingestion/2025.iwslt-1.37.pdf