Short utterance PLDA speaker verification using SN-WLDA and variance modelling techniques
Kanagasundaram, Ahilan, Dean, David, & Sridharan, Sridha (2014) Short utterance PLDA speaker verification using SN-WLDA and variance modelling techniques. In SST 2014 15th Australasian International Conference on Speech Science and Technology, 3 - 5 December 2014, Christchurch, New Zealand.
This paper proposes a combination of source-normalized weighted linear discriminant analysis (SN-WLDA) and short utterance variance (SUV) PLDA modelling to improve the short utterance PLDA speaker verification. As short-length utterance i-vectors vary with the speaker, session variations and phonetic content of the utterance (utterance variation), a combined approach of SN-WLDA projection and SUV PLDA modelling is used to compensate the session and utterance variations. Experimental studies have found that a combination of SN-WLDA and SUV PLDA modelling approach shows an improvement over baseline system (WCCN[LDA]-projected Gaussian PLDA (GPLDA)) as this approach effectively compensates the session and utterance variations.
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|Item Type:||Conference Paper|
|Keywords:||Speaker verification, Session variation, Utterance variation, LDA, SN-WLDA|
|Subjects:||Australian and New Zealand Standard Research Classification > INFORMATION AND COMPUTING SCIENCES (080000)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000)
|Divisions:||Current > Schools > School of Electrical Engineering & Computer Science
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Institutes > Information Security Institute
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2014 Please consult the authors|
|Deposited On:||15 Aug 2014 04:27|
|Last Modified:||08 May 2015 01:07|
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