IWSLT 2025 Indic Track System Description Paper: Speech-to-Text Translation from Low-Resource Indian Languages (Bengali and Tamil) to English

Sayan Das, Soham Chaudhuri, Dipanjan Saha, Dipankar Das, Sivaji Bandyopadhyay


Abstract
Multi-language Speech-to-Text Translation (ST) plays a crucial role in breaking linguistic barriers, particularly in multilingual regions like India. This paper focuses on building a robust ST system for low resource Indian languages, with a special emphasis on Bengali and Tamil. These languages represent the Indo-Aryan and Dravidian families, respectively. The dataset used in this work comprises spoken content from TED Talks and conferences, paired with transcriptions in English and their translations in Bengali and Tamil. Our work specifically addresses the translation of Bengali and Tamil speech to English text, a critical area given the scarcity of annotated speech data. To enhance translation quality and model robustness, we leverage cross-lingual resources and word level translation strategies. The ultimate goal is to develop an end-to-end ST model capable of real-world deployment for under represented languages.
Anthology ID:
2025.iwslt-1.23
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:
245–251
Language:
URL:
https://preview.aclanthology.org/acl25-workshop-ingestion/2025.iwslt-1.23/
DOI:
Bibkey:
Cite (ACL):
Sayan Das, Soham Chaudhuri, Dipanjan Saha, Dipankar Das, and Sivaji Bandyopadhyay. 2025. IWSLT 2025 Indic Track System Description Paper: Speech-to-Text Translation from Low-Resource Indian Languages (Bengali and Tamil) to English. In Proceedings of the 22nd International Conference on Spoken Language Translation (IWSLT 2025), pages 245–251, Vienna, Austria (in-person and online). Association for Computational Linguistics.
Cite (Informal):
IWSLT 2025 Indic Track System Description Paper: Speech-to-Text Translation from Low-Resource Indian Languages (Bengali and Tamil) to English (Das et al., IWSLT 2025)
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PDF:
https://preview.aclanthology.org/acl25-workshop-ingestion/2025.iwslt-1.23.pdf