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A Fast Parts-Based Approach to Speaker Verification Using Boosted Slice Classifiers

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3 Author(s)
Roy, A. ; Doctoral Sch. of Electr. Eng., Ecole Polytech. Federate de Lausanne, Lausanne, Switzerland ; Magimai-Doss, M. ; Marcel, S.

Speaker verification (SV) on portable devices like smartphones is gradually becoming popular. In this context, two issues need to be considered: 1) such devices have relatively limited computation resources, and 2) they are liable to be used everywhere, possibly in very noisy, uncontrolled environments. This work aims to address both these issues by proposing a computationally efficient yet robust SV system. This novel parts-based system draws inspiration from face and object detection systems in the computer vision domain. The system involves boosted ensembles of simple threshold-based classifiers. It uses a novel set of features extracted from speech spectra, called "slice features." The performance of the proposed system was evaluated through extensive studies involving a wide range of experimental conditions using the TIMIT, HTIMIT, and MOBIO corpus, against standard cepstral features and Gaussian Mixture Model-based SV systems.

Published in:

Information Forensics and Security, IEEE Transactions on  (Volume:7 ,  Issue: 1 )
Biometrics Compendium, IEEE

Date of Publication:

Feb. 2012

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