Overview

ASVspoof studies how to distinguish genuine speech from replayed, synthesized, converted, cloned, or partly manipulated audio, helping prevent forged voices from fooling speaker-verification systems. Methods range from handcrafted spectral cues and RawBoost-style augmentation to self-supervised encoders such as WavLM and XLS-R, paired with CNN, Transformer, or graph back ends, temporal localization, and score fusion. Evaluation uses logical-access, physical-access, and deepfake tracks in ASVspoof benchmarks, alongside cross-dataset and in-the-wild tests, with metrics such as EER and minDCF supplemented by calibration and robustness analyses. Strong benchmark results remain hard to transfer across codecs, channels, unseen generators, and demographic or prevalence shifts, leaving open how to improve generalization and auditable decisions without relying on dataset shortcuts or costly ensembles.

Latest papers

31 papers6 papers in the last four weeks, up 20% on the four weeks before. 0.0% of all new papers.

Feb 18, 2026

How to Label Resynthesized Audio: The Dual Role of Neural Audio Codecs in Audio Deepfake Detection

Since Text-to-Speech systems typically don't produce waveforms directly, recent spoof detection studies use resynthesized waveforms from vocoders and neural audio codecs to simulate an attacker. Unlike vocoders, which are specifically designed for speech synthesis, neural audio codecs were originally developed for compressing audio for storage and transmission. However, their ability to discretize speech also sparked interest in language-modeling-based speech synthesis. Owing to this dual functionality, codec resynthesized data may be labeled as either bonafide or spoof. So far, very little research has addressed this issue. In this study, we present a challenging extension of the ASVspoof 5 dataset constructed for this purpose. We examine how different labeling choices affect detection performance and provide insights into labeling strategies.