Exploring Cross-Lingual Voice Conversion Methods for Anonymizing Low-Resource Text-to-Speech

Shenran Wang, Aidan Pine, Mengzhe Geng


Abstract
We describe and compare multiple approaches for using voice conversion techniques to mask speaker identities in low-resource text-to-speech. We build and evaluate speaker-anonymized text-to-speech systems for two Canadian Indigenous languages, nêhiyawêwin and SENĆOŦEN, and show that cross-lingual speaker transfer via multilingual training with English data produces the most consistent results across both languages. Our research also underscores the need for better evaluation metrics tailored to cross-lingual voice conversion. Our code can be found at https://github.com/EveryVoiceTTS/Speaker_Anonymization_StyleTTS2
Anthology ID:
2026.eacl-short.16
Volume:
Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 2: Short Papers)
Month:
March
Year:
2026
Address:
Rabat, Morocco
Editors:
Vera Demberg, Kentaro Inui, Lluís Marquez
Venue:
EACL
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Publisher:
Association for Computational Linguistics
Note:
Pages:
225–231
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URL:
https://preview.aclanthology.org/ingest-eacl/2026.eacl-short.16/
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Cite (ACL):
Shenran Wang, Aidan Pine, and Mengzhe Geng. 2026. Exploring Cross-Lingual Voice Conversion Methods for Anonymizing Low-Resource Text-to-Speech. In Proceedings of the 19th Conference of the European Chapter of the Association for Computational Linguistics (Volume 2: Short Papers), pages 225–231, Rabat, Morocco. Association for Computational Linguistics.
Cite (Informal):
Exploring Cross-Lingual Voice Conversion Methods for Anonymizing Low-Resource Text-to-Speech (Wang et al., EACL 2026)
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