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Speaker Model and Decision Threshold Updating in Speaker Verification

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EurAsia-ICT 2002: Information and Communication Technology (EurAsia-ICT 2002)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2510))

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Abstract

This paper deals with the problem of updating reference models and decision thresholds in speaker verification. In the real application of a speaker verification system, reference models of speakers and their decision thresholds should be already determined. Reference model and decision threshold updating can render a speaker verification system more robust against inter-session variability, due to changes in speaker’s voice and the diversity in transmission line characteristics. In this paper, different methods for the calculation of decision threshold, the updating of decision threshold and reference model, and BMDR decision criterion are compared and evaluated. In our experiments, Sphericity Measure (a Second Order Statistical Measure) was implemented and used for speaker modeling.

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References

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Authors and Affiliations

  1. Computer Engineering Department of Amirkabir Univ. of Technology, Tehran, Iran

    M. Mehdi Homayounpour

  2. Institut Dalle Molle d’Intelligence Artificielle Perceptive, Martigny, Switzerland

    M. Mehdi Homayounpour

Authors
  1. M. Mehdi Homayounpour
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Editor information

Editors and Affiliations

  1. Faculty of Mathematics and Computer Science Computer Science Department, Shahid Bahonar University, 22 Bahman Bulvard, Kerman, Iran

    Hassan Shafazand

  2. Fraunhofer IPSI, Dolivostr. 15, 64293, Darmstadt, Germany

    Hassan Shafazand

  3. Institute of Software Technology, Vienna University of Technology, Favoritenstr. 9/188, 1040, Vienna, Austria

    A. Min Tjoa

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© 2002 Springer-Verlag Berlin Heidelberg

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Homayounpour, M.M. (2002). Speaker Model and Decision Threshold Updating in Speaker Verification. In: Shafazand, H., Tjoa, A.M. (eds) EurAsia-ICT 2002: Information and Communication Technology. EurAsia-ICT 2002. Lecture Notes in Computer Science, vol 2510. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-36087-5_1

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  • DOI: https://doi.org/10.1007/3-540-36087-5_1

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-00028-0

  • Online ISBN: 978-3-540-36087-2

  • eBook Packages: Springer Book Archive

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