| Paper: | SLP-L5.5 | ||
| Session: | Advances in Speaker Recognition | ||
| Time: | Wednesday, May 17, 15:20 - 15:40 | ||
| Presentation: | Lecture | ||
| Topic: | Speech and Spoken Language Processing: Speaker Verification | ||
| Title: | Improvements in Factor Analysis based Speaker Verification | ||
| Authors: | Patrick Kenny, Gilles Boulianne, Pierre Ouellet, Pierre Dumouchel, CRIM, Canada | ||
| Abstract: | We present the results of speaker verification experiments conducted on the NIST 2005 evaluation data using a factor analysis of speaker and session variability in 6 telephone speech corpora distributed by the Linguistic Data Consortium. We demonstrate the effectiveness of zt-norm score normalization and a new decision criterion for speaker recognition which can handle large numbers of t-norm speakers and large numbers of speaker factors at little computational cost. The best result we obtained was a detection cost of 0.016 on the core condition (all trials) of the evaluation. | ||
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