ISYE8843_Ma_and_Li

ISYE8843_Ma_and_Li - Bayesian Method in Speaker Verication...

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Bayesian Method in Speaker Verification Chengyuan Ma and Jinyu Li School of Electrical and Computer Engineering Bayesian Method in Speaker Verification. December 2, 2004 – p. 1/ ? ?
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Outline Speaker Verification System MAP adaptation of Speaker Model Experiment Setup, Conclusion and Future Work Bayesian Method in Speaker Verification. December 2, 2004 – p. 2/ ? ?
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Speaker Verification System Bayesian Method in Speaker Verification. December 2, 2004 – p. 3/ ? ?
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Speaker Verification System Framework Speaker Verification Determines whether person is who they claim to be User makes identity claim (one to one mapping) Three Main Components Front-end processing (Feature Extraction) Speaker and background modeling (Speaker Modeling) Log-likelihood-ratio score normalization (Decision Making) Bayesian Method in Speaker Verification. December 2, 2004 – p. 4/ ? ?
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Speaker Verification System Framework (Cont.) Bayesian Method in Speaker Verification. December 2, 2004 – p. 5/ ? ?
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Speaker and Background Modeling GMM (Gaussian Mixtures Model) represent static acoustic event distribution for each speaker p ( o t | Λ) = M s m =1 w m (2 π ) d 2 | Σ m | 1 2 · e - 1 2 ( o t - μ m ) τ Σ - 1 m ( o t - μ m ) M s m =1 w m = 1 and w m > 0 Λ is used to represent speaker model parameters. w
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This note was uploaded on 10/23/2011 for the course ISYE 8843 taught by Professor Vidakovic during the Spring '11 term at Georgia Tech.

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ISYE8843_Ma_and_Li - Bayesian Method in Speaker Verication...

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