TwinShift: Benchmarking Audio Deepfake Detection across Synthesizer and Speaker Shifts

Fuente: arXiv
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Autori principali: Hong, Jiyoung, Chung, Yoonseo, Oh, Seungyeon, Kim, Juntae, Lee, Jiyoung, Kim, Sookyung, Cho, Hyunsoo
Natura: Preprint
Pubblicazione: 2025
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author Hong, Jiyoung
Chung, Yoonseo
Oh, Seungyeon
Kim, Juntae
Lee, Jiyoung
Kim, Sookyung
Cho, Hyunsoo
author_facet Hong, Jiyoung
Chung, Yoonseo
Oh, Seungyeon
Kim, Juntae
Lee, Jiyoung
Kim, Sookyung
Cho, Hyunsoo
contents Audio deepfakes pose a growing threat, already exploited in fraud and misinformation. A key challenge is ensuring detectors remain robust to unseen synthesis methods and diverse speakers, since generation techniques evolve quickly. Despite strong benchmark results, current systems struggle to generalize to new conditions limiting real-world reliability. To address this, we introduce TWINSHIFT, a benchmark explicitly designed to evaluate detection robustness under strictly unseen conditions. Our benchmark is constructed from six different synthesis systems, each paired with disjoint sets of speakers, allowing for a rigorous assessment of how well detectors generalize when both the generative model and the speaker identity change. Through extensive experiments, we show that TWINSHIFT reveals important robustness gaps, uncover overlooked limitations, and provide principled guidance for developing ADD systems. The TWINSHIFT benchmark can be accessed at https://github.com/intheMeantime/TWINSHIFT.
format Preprint
id arxiv_https___arxiv_org_abs_2510_23096
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle TwinShift: Benchmarking Audio Deepfake Detection across Synthesizer and Speaker Shifts
Hong, Jiyoung
Chung, Yoonseo
Oh, Seungyeon
Kim, Juntae
Lee, Jiyoung
Kim, Sookyung
Cho, Hyunsoo
Sound
Audio deepfakes pose a growing threat, already exploited in fraud and misinformation. A key challenge is ensuring detectors remain robust to unseen synthesis methods and diverse speakers, since generation techniques evolve quickly. Despite strong benchmark results, current systems struggle to generalize to new conditions limiting real-world reliability. To address this, we introduce TWINSHIFT, a benchmark explicitly designed to evaluate detection robustness under strictly unseen conditions. Our benchmark is constructed from six different synthesis systems, each paired with disjoint sets of speakers, allowing for a rigorous assessment of how well detectors generalize when both the generative model and the speaker identity change. Through extensive experiments, we show that TWINSHIFT reveals important robustness gaps, uncover overlooked limitations, and provide principled guidance for developing ADD systems. The TWINSHIFT benchmark can be accessed at https://github.com/intheMeantime/TWINSHIFT.
title TwinShift: Benchmarking Audio Deepfake Detection across Synthesizer and Speaker Shifts
topic Sound
url https://arxiv.org/abs/2510.23096