AI RESEARCH
Do Compact SSL Backbones Matter for Audio Deepfake Detection? A Controlled Study with RAPTOR
arXiv CS.AI
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ArXi:2603.06164v1 Announce Type: cross Self-supervised learning (SSL) underpins modern audio deepfake detection, yet most prior work centers on a single large wav2vec2-XLSR backbone, leaving compact under studied. We present RAPTOR, Representation Aware Pairwise-gated Transformer for Out-of-domain Recognition a controlled study of compact SSL backbones from the HuBERT and WavLM within a unified pairwise-gated fusion detector, evaluated across 14 cross-domain benchmarks. We show that multilingual HuBERT pre.