Beyond Silence: Bias Analysis through Loss and Asymmetric Approach in Audio Anti-Spoofing

Current trends in audio anti-spoofing detection research strive to improve models' ability to generalize across unseen attacks by learning to identify a variety of spoofing artifacts. This emphasis has primarily focused on the spoof class. Recently, several studies have noted that the distribut...

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Bibliographic Details
Published in:arXiv.org 2024-08
Main Authors: Hye-jin Shim, Sahidullah, Md, Jee-weon Jung, Watanabe, Shinji, Kinnunen, Tomi
Format: Article
Language:English
Subjects:
Asymmetry
Silence
Spoofing
Online Access:Get full text
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Summary:Current trends in audio anti-spoofing detection research strive to improve models' ability to generalize across unseen attacks by learning to identify a variety of spoofing artifacts. This emphasis has primarily focused on the spoof class. Recently, several studies have noted that the distribution of silence differs between the two classes, which can serve as a shortcut. In this paper, we extend class-wise interpretations beyond silence. We employ loss analysis and asymmetric methodologies to move away from traditional attack-focused and result-oriented evaluations towards a deeper examination of model behaviors. Our investigations highlight the significant differences in training dynamics between the two classes, emphasizing the need for future research to focus on robust modeling of the bonafide class.
ISSN:2331-8422