Combination strategies for a factor analysis phone-conditioned speaker verification system

Scheffer, Nicolas, Vogt, Robbie, Kajarekar, Sachin, & Pelecanos, Jason (2009) Combination strategies for a factor analysis phone-conditioned speaker verification system. In 2009 IEEE International Conference on Acoustics, Speech and Signal Processing, IEEE, Taipei, Taiwan., pp. 4053-4056.

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Abstract

This work aims to take advantage of recent developments in joint factor analysis (JFA) in the context of a phonetically conditioned GMM speaker verification system. Previous work has shown performance advantages through phonetic conditioning, but this has not been shown to date with the JFA framework. Our focus is particularly on strategies for combining the phone-conditioned systems. We show that the classic fusion of the scores is suboptimal when using multiple GMM systems. We investigate several combination strategies in the model space, and demonstrate improvement over score-level combination as well as over a non-phonetic baseline system. This work was conducted during the 2008 CLSP Workshop at Johns Hopkins University.

Impact and interest:

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ID Code: 27706
Item Type: Conference Paper
Refereed: Yes
DOI: 10.1109/ICASSP.2009.4960518
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Institutes > Information Security Institute
Past > Schools > School of Engineering Systems
Copyright Owner: Copyright 2009 IEEE.
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 02 Oct 2009 05:43
Last Modified: 02 Jun 2015 05:00

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