AAU Student Projects - visit Aalborg University's student projects portal
A master's thesis from Aalborg University
Book cover


Among us - Detecting spoofed audio samples in a multi-party conversation -

Term

4. semester

Publication year

2025

Submitted on

Pages

78

Abstract

As voice technologies become more preva- lent, it becomes vital to improve spoofing detection algorithms especially when mul- tiple speakers are involved. This thesis presents a novel pipeline combining speech separation with spoof detection to address the challenge of identifying spoofed audio samples in overlapped speech. The system uses a SOTA spoof detection model which achieves an EER of 2% on ASVspoof 2019 dataset. However, the EER drops to 24% when tested on a custom- generated mixed audio dataset, as a result of modifications of the audio artifacts by the speech separa- tion process. The system when trained on the custom dataset saw an increase in EER to 22% highlighting the importance of do- main adaptation for spoof detection in com- plex acoustic environments and provides a foundation for future research in real-world scenarios.