Abstract
Impostors pose a potential threat to security systems that rely on human identification and verification based on voice alone and to security systems that make use of computer audio-based person authentication systems. This paper presents a case-study, which explores these issues using recordings of a high quality professional impersonation of a well-known Swedish politician. These recordings were used in the role of impostor in the experiments reported here. The experiments using human listeners showed that an impostor who can closely imitate the speech of the target voice can result in confusion and, therefore, can pose a threat to security systems that rely on human identification and verification. In contrast, an established Gaussian mixture model based speaker identification system was employed to distinguish the recordings. It was shown that the recognition engine was capable of classifying the mimic attacks more appropriately.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Davis, S. and Mermelstein, P.: Comparison of parametric representations for monosyllabic word recognition in continuously spoken sentences In: IEEE Transactions on Acoustic Speech Signal Processing, Vol. ASSP-28, (1980) 357–366.
Dempster, A., Laird, N., and Rubin, D.: Maximum likelihood from incomplete data via the E-M algorithm In: Journal of the Royal Statistical Society B, Vol. 39, No. 1, (1977) 1–38.
Lindberg, J. and Blomberg, M.: Vulnerability in speaker verification-a study of possible technical imposter techniques. In: Proceedings of the 6th European Conference on Speech Communication and Technology, Vol. 3. (1999) 1211–1214.
Reynolds, D. and Rose, R.: Robust Text-Independent Speaker Identification Using Gaussian Mixture Models In: IEEE Transactions on Speech and Audio Processing, Vol. 3,No. 1, (1995) 72–83.
Schlichting, F. and Sullivan, K.P.H.: The imitated voice-a problem for voice line-ups? In: Forensic Linguistics, 4 (1997) 148–165.
Schmidt-Nielson, A. and Crystal, T.: Speaker Verification by Human Listeners: Experiments Comparing Human and Machine Performance Using the NIST 1998 Speaker Evaluation Data In: Digital Signal Processing, Vol. 10,Nos. 1-3, (2000) 249–266.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2001 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Sullivan, K.P.H., Pelecanos, J. (2001). Revisiting Carl Bildt’s Impostor: Would a Speaker Verification System Foil Him?. In: Bigun, J., Smeraldi, F. (eds) Audio- and Video-Based Biometric Person Authentication. AVBPA 2001. Lecture Notes in Computer Science, vol 2091. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45344-X_21
Download citation
DOI: https://doi.org/10.1007/3-540-45344-X_21
Published:
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-42216-7
Online ISBN: 978-3-540-45344-4
eBook Packages: Springer Book Archive