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Within-session variability modelling for factor analysis speaker verification

Vogt, Robert J., Pelecanos, Jason, Scheffer, Nicolas, Kajarekar, Sachin, & Sridharan, Sridha (2009) Within-session variability modelling for factor analysis speaker verification. In 10th Annual Conference of the International Speech Communication Association : InterSpeech, 6-10 September 2009, Brighton Centre, Brighton.

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Abstract

This work presents an extended Joint Factor Analysis model including explicit modelling of unwanted within-session variability. The goals of the proposed extended JFA model are to improve verification performance with short utterances by compensating for the effects of limited or imbalanced phonetic coverage, and to produce a flexible JFA model that is effective over a wide range of utterance lengths without adjusting model parameters such as retraining session subspaces. Experimental results on the 2006 NIST SRE corpus demonstrate the flexibility of the proposed model by providing competitive results over a wide range of utterance lengths without retraining and also yielding modest improvements in a number of conditions over current state-of-the-art.

Impact and interest:

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113 since deposited on 10 Jan 2010
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ID Code: 29574
Item Type: Conference Paper
Keywords: speaker recognition, factor analysis, within-session variability
Subjects: Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Natural Language Processing (080107)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Signal Processing (090609)
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 [please consult the authors]
Deposited On: 11 Jan 2010 08:47
Last Modified: 01 Mar 2012 00:04

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