INTERSPEECH 2009
10th Annual Conference of the International Speech Communication Association

Brighton, United Kingdom
September 6-10, 2009

Investigation into Variants of Joint Factor Analysis for Speaker Recognition

Lukáš Burget, Pavel Matějka, Valiantsina Hubeika, Jan Černocký

Brno University of Technology, Czech Republic

In this paper, we have investigated into JFA used for speaker recognition. First, we performed systematic comparison of full JFA with its simplified variants and confirmed superior performance of the full JFA with both eigenchannels and eigenvoices. We investigated into sensitivity of JFA on the number of eigenvoices both for the full one and simplified variants. We studied the importance of normalization and found that gender-dependent zt-norm was crucial. The results are reported on NIST 2006 and 2008 SRE evaluation data.

Full Paper

Bibliographic reference.  Burget, Lukáš / Matějka, Pavel / Hubeika, Valiantsina / Černocký, Jan (2009): "Investigation into variants of joint factor analysis for speaker recognition", In INTERSPEECH-2009, 1263-1266.