Technical Program

Paper Detail

Paper:SP-L2.4
Session:Modeling Approaches in Speaker Recognition
Time:Wednesday, May 19, 10:30 - 10:50
Presentation: Lecture
Topic: Speech Processing: Speaker Recognition
Title: DISENTANGLING SPEAKER AND CHANNEL EFFECTS IN SPEAKER VERIFICATION
Authors: Patrick Kenny; Centre de recherche informatique de Montreal 
 Pierre Dumouchel; Centre de recherche informatique de Montreal 
Abstract: We show how a joint factor analysis of inter-speaker and intra-speaker variability in a trainingdatabase which contains multiplerecordings for each speaker can be used to construct likelihoodratio statistics for speaker verification which take account of intra-speaker variation (and channel variation in particular)in a principled way. We report the results of experiments on the NIST 2001 cellular one speaker detection taskcarried out by applyingthis type of factor analysisto Switchboard Cellular Part I. The evaluation data for this task is containedin Switchboard Cellular Part I so these results cannot be taken at face value but they indicate that the factor analysismodel can perform extremely well if it is perfectly estimated.
 
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