10th Annual Conference of the International Speech Communication Association

Brighton, United Kingdom
September 6-10, 2009

Long Term Examination of Intra-Session and Inter-Session Speaker Variability

A. D. Lawson (1), A. R. Stauffer (1), B. Y. Smolenski (1), B. B. Pokines (2), M. Leonard (3), E. J. Cupples (1)

(1) RADC Inc., USA
(2) Oasis Systems, USA
(3) University of Texas at Dallas, USA

Session variability in speaker recognition is a well recognized phenomena, but poorly understood largely due to a dearth of robust longitudinal data. The current study uses a large, longterm speaker database to quantify both speaker variability changes within a conversation and the impact of speaker variability changes over the long term (3 years). Results demonstrate that 1) change in accuracy over the course of a conversation is statistically very robust and 2) that the aging effect over three years is statistically negligible. Finally we demonstrate that voice change during the course of a conversation is, in large part, comparable across sessions.

Full Paper

Bibliographic reference.  Lawson, A. D. / Stauffer, A. R. / Smolenski, B. Y. / Pokines, B. B. / Leonard, M. / Cupples, E. J. (2009): "Long term examination of intra-session and inter-session speaker variability", In INTERSPEECH-2009, 2899-2902.