{"ID":2831596,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2512.07352","arxiv_id":"2512.07352","title":"MultiAPI Spoof: A Multi-API Dataset and Local-Attention Network for Speech Anti-spoofing Detection","abstract":"Existing speech anti-spoofing benchmarks rely on a narrow set of public models, creating a substantial gap from real-world scenarios in which commercial systems employ diverse, often proprietary APIs. To address this issue, we introduce MultiAPI Spoof, a multi-API audio anti-spoofing dataset comprising about 230 hours of synthetic speech generated by 30 distinct APIs, including commercial services, open-source models, and online platforms. Furthermore, we propose Nes2Net-LA, a local-attention enhanced variant of Nes2Net that improves local context modeling and fine-grained spoofing feature extraction. Based on this dataset, we also define the API tracing task, enabling fine-grained attribution of spoofed audio to its generation source. Experiments show that Nes2Net-LA achieves state-of-the-art performance and offers superior robustness, particularly under diverse and unseen spoofing conditions. Code \\footnote{https://github.com/XuepingZhang/MultiAPI-Spoof} and dataset \\footnote{https://xuepingzhang.github.io/MultiAPI-Spoof-Dataset/} have been released.","short_abstract":"Existing speech anti-spoofing benchmarks rely on a narrow set of public models, creating a substantial gap from real-world scenarios in which commercial systems employ diverse, often proprietary APIs. To address this issue, we introduce MultiAPI Spoof, a multi-API audio anti-spoofing dataset comprising about 230 hours...","url_abs":"https://arxiv.org/abs/2512.07352","url_pdf":"https://arxiv.org/pdf/2512.07352v3","authors":"[\"Xueping Zhang\",\"Zhenshan Zhang\",\"Yechen Wang\",\"Linxi Li\",\"Liwei Jin\",\"Ming Li\"]","published":"2025-12-08T09:43:30Z","proceeding":"cs.SD","tasks":"[\"cs.SD\"]","methods":"[]","has_code":false,"code_links":[{"ID":606143,"CreatedAt":"2026-06-01T04:54:23.091178241Z","UpdatedAt":"2026-06-01T04:54:23.091178241Z","DeletedAt":null,"paper_id":2831596,"paper_url":"https://arxiv.org/abs/2512.07352","paper_title":"MultiAPI Spoof: A Multi-API Dataset and Local-Attention Network for Speech Anti-spoofing Detection","repo_url":"https://github.com/XuepingZhang/MultiAPI-Spoof","is_official":false,"mentioned_in_paper":false,"mentioned_in_github":true,"github_stars":0}]}