RIRplay: Generation of a Replay Stereo Corpus for Voice Biometrics Anti-Spoofing

Voice biometric systems (technology that identifies people by their voice) are vulnerable to replay attacks (where an attacker plays back a recorded voice to fool the system), but there hasn't been enough realistic training data to build good defenses. This research created RIRplay, a simulated database that realistically mimics how replay attacks actually happen across different acoustic environments, which improved detection performance significantly when tested on real-world voice spoofing challenges.