Spectro-Temporally Compressed Source Features for Replay Attack Detection
Sarfaraz Jelil, Rohit Sinha, S. R. Mahadeva Prasanna · IEEE Signal Processing Letters · 2024
The role of pitch-synchronous source features in the detection of replay attacks on speaker verification systems has been explored earlier. This work presents some advancements in the processing which enable the use of the entire source signal as well as better capture of the source dynamics. The resulting features are used to develop replay attack detection systems using both the Gaussian mixture model and ResNet-18 classifiers. The performances of these systems are evaluated on the physical attack subset of the ASVSpoof 2019 database. In a similar setup, the proposed features are noted to yield quite competitive performance compared to some of the existing replay attack detection features.