Akib Shahriyar

Discrete optimal transport is a strong audio adversarial attack

2025 · arXiv (Cornell University)

In this paper, we investigate discrete optimal transport (DOT) as a black-box attack against modern automatic speaker verification (ASV) and anti-spoofing countermeasure (CM) systems. Our attack operates as a post-processing distribution-alignment step. Frame-level WavLM embeddings …