Ouvia: A User-centered Framework for Measuring Usability of Speech Translation in Real-World Communication Scenarios

Giuseppe Attanasio, Beatrice Savoldi, Daniel Chechelnitsky, Matteo Negri, Marine Carpuat, Maarten Sap, Andre Martins


Abstract
Speech translation (ST) is increasingly adopted in user applications, yet its evaluation largely focuses on decontextualized testbeds and holistic quality, rather than end users’ communication needs. We introduce Ouvia, an evaluation framework for measuring user-perceived usability of speech translation outputs in real-world settings. Ouvia focuses on one-to-one communication: an English speaker needs to convey a request to a Portuguese speaker, and the message is automatically translated. Through a custom web app and multi-phase study design, we collect more than 1,750 such interactions in healthcare and everyday situations, mediated by four ST systems, involving speakers from three English dialects and two genders. We find that modern ST serves people only to a limited extent—only around half of interactions are rated as usable—with significant gaps in reported usability across demographic groups. Moreover, among quality metrics, we find that QA-based evaluation is a substantially stronger predictor of real-world usability than standard approaches. Together, these findings stress the importance of situated, user-centered evaluation frameworks that go beyond holistic quality scores and attend to who the technology serves—and how well.
Anthology ID:
2026.emnlp-main.2667
Volume:
Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing
Month:
October
Year:
2026
Address:
Budapest, Hungary
Editors:
Hung-Yi Lee, Sunipa Dev, Jessy Li, Desmond Elliott
Venue:
EMNLP
SIG:
SIGDAT
Publisher:
Association for Computational Linguistics
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Pages:
60698–60716
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URL:
https://aclanthology.org/2026.emnlp-main.2667/
DOI:
Bibkey:
Cite (ACL):
Giuseppe Attanasio, Beatrice Savoldi, Daniel Chechelnitsky, Matteo Negri, Marine Carpuat, Maarten Sap, and Andre Martins. 2026. Ouvia: A User-centered Framework for Measuring Usability of Speech Translation in Real-World Communication Scenarios. In Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing, pages 60698–60716, Budapest, Hungary. Association for Computational Linguistics.
Cite (Informal):
Ouvia: A User-centered Framework for Measuring Usability of Speech Translation in Real-World Communication Scenarios (Attanasio et al., EMNLP 2026)
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PDF:
https://aclanthology.org/2026.emnlp-main.2667.pdf