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A New Method of Selecting Cohort for Speaker Verification  

김성준 (홍익대학교 전자공학과)
계영철 (홍익대학교 전자공학과)
Abstract
This paper deals with the method of speaker verification based on the conventional cohort of fixed size. In particular, a new cohort of variable size, which makes use of the distance between speaker models, is proposed: The density of neighboring speaker models within the fixed distance from each speaker is taken into account in the proposed method. The high density leads to the increase of cohort size, thus improving the speaker verification rate. On the other hand, the low density leads to its decrease, thus reducing the amount of computations. The simulation results show that the proposed method outperforms the conventional one, achieving a reduction in the EER.
Keywords
Speaker verification; Cohort; Score normalization; Dynamic threshold;
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  • Reference
1 Speaker verification using normalized log-likelihood score /
[ C.S.Liu;H.C.Wang;C.H.Lee ] / IEEE Trans. on Speech and Audio Processing
2 /
[ L.Rabiner;B.H.Juang ] / Fundamentals of Speech Recognition
3 A new cohort normalization using local acoustic information for speaker verification /
[ H.Cho;S.Ku;K.Shi ] / Proc. ICASSP 92
4 The use of cohort normalized scores for speaker verification /
[ A.E.Rosenberg;J.Delong;C.H.Lee;B.H.Juang;F.K.Soong ] / Proc. ICSLP 92
5 Imposter cohort selection for score normallsation in speaker verification /
[ R.A.Finan;A.T.Sapeluk;R.I.Damper ] / Journal of Pattern Recognition Letter