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Support vector machine based speaker identification systems using GMM parameters

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2 Author(s)
Apsingekar, V.R. ; Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA ; De Leon, P.L.

Speaker identification is the task of determining which speaker characteristics from the speakers known to the system best matches the unknown voice sample. SI requires multiple decision alternatives and to implement SI system using SVM techniques requires multi-class SVM classifier. In this paper, speaker model clustering is implemented on a SVM based SI system. Here, instead of clustering the speakers, we build a SVM classifier which separates a group of speakers. Thus each hyperplane built using SVMs separates a group of speakers and this procedure is repeated in each sub-group until there is only one speaker in each group. Experiments performed on NIST-2002 speech corpus show an improvement in accuracy compared to the conventional multi-class SVM techniques.

Published in:

Signals, Systems and Computers, 2009 Conference Record of the Forty-Third Asilomar Conference on

Date of Conference:

1-4 Nov. 2009