Factor analysis subspace estimation for speaker verification with short utterances
Vogt, Robert J., Baker, Brendan J., & Sridharan, Sridha (2008) Factor analysis subspace estimation for speaker verification with short utterances. In Interspeech 2008, 22-26 September 2008, Brisbane, Australia.
Training the speaker and session subspaces is an integral problem in developing a joint factor analysis GMM speaker verification system. This work investigates and compares several alternative procedures for this task with a particular focus on training and testing with short utterances. Experiments show that better performance can be obtained when an independent rather than simultaneous optimisation of the two core variability subspaces is used. It is additionally shown that for verification trials on short utterances it is important for the session subspace to be trained with matched length utterances. Conversely, the speaker transform should always be trained with as much data as possible.
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|Item Type:||Conference Paper|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000) > ARTIFICIAL INTELLIGENCE AND IMAGE PROCESSING (080100) > Natural Language Processing (080107)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Past > Institutes > Information Security Institute
|Copyright Owner:||Copyright 2008 International Speech Communication Association (ISCA)|
|Copyright Statement:||Reproduced in accordance with the copyright policy of the publisher.|
|Deposited On:||06 Nov 2008|
|Last Modified:||29 Feb 2012 23:48|
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