Towards Quantifying and Reducing Language Mismatch Effects in Cross-Lingual Speech Anti-Spoofing

• URL: http://arxiv.org/abs/2409.08346v1
• Date: Thu, 12 Sep 2024 18:18:22 GMT
• Title: Towards Quantifying and Reducing Language Mismatch Effects in Cross-Lingual Speech Anti-Spoofing
• Authors: Tianchi Liu, Ivan Kukanov, Zihan Pan, Qiongqiong Wang, Hardik B. Sailor, Kong Aik Lee,
• Abstract summary: Existing anti-spoofing datasets are mainly in English. High cost of acquiring multilingual datasets hinders training language-independent models. We propose an innovative approach - Accent-based data expansion via TTS (ACCENT)
• Score: 21.214330523348046
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The effects of language mismatch impact speech anti-spoofing systems, while investigations and quantification of these effects remain limited. Existing anti-spoofing datasets are mainly in English, and the high cost of acquiring multilingual datasets hinders training language-independent models. We initiate this work by evaluating top-performing speech anti-spoofing systems that are trained on English data but tested on other languages, observing notable performance declines. We propose an innovative approach - Accent-based data expansion via TTS (ACCENT), which introduces diverse linguistic knowledge to monolingual-trained models, improving their cross-lingual capabilities. We conduct experiments on a large-scale dataset consisting of over 3 million samples, including 1.8 million training samples and nearly 1.2 million testing samples across 12 languages. The language mismatch effects are preliminarily quantified and remarkably reduced over 15% by applying the proposed ACCENT. This easily implementable method shows promise for multilingual and low-resource language scenarios.

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