| 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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