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VietPrism: A large-scale Vietnamese speech and deepfake corpus with diverse dialects and code-switching

arXiv · AI, language, vision and robotics · article · Sep 24, 2026 · UTC

Vietnamese speech research is constrained by resources that isolate automatic speech recognition from speaker, dialect, code-switching, and deepfake analysis. We introduce VietPrism, an open, multi-domain corpus that brings these dimensions together at scale: 993.4 hours and 403,941 bona fide utterances from 1,262 verified speakers across 8,388 real-world videos. To our knowledge, it is the first large-scale Vietnamese corpus to jointly provide transcripts, consistent speaker identities, five dialect groups, and naturally occurring Vietnamese--English code-switching, which constitutes nearly h

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Evidence & attribution

First collected: 2026-09-25T06:12:46.948Z. This is not the publication date.