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A ContextDependent Sequential Decision for Speaker Verification
Hideki NODA Katsuya HARADA Eiji KAWAGUCHI
Publication
IEICE TRANSACTIONS on Information and Systems
Vol.E82D
No.10
pp.14331436 Publication Date: 1999/10/25 Online ISSN:
DOI: Print ISSN: 09168532 Type of Manuscript: LETTER Category: Speech Processing and Acoustics Keyword: speaker verification, sequential probability ratio test, sequential decision, mean field approximation, HMM,
Full Text: PDF>>
Summary:
This paper presents an improved method of speaker verification using the sequential probability ratio test (SPRT), which can treat the correlation between successive feature vectors. The hidden Markov model with the mean field approximation enables us to consider the correlation in the SPRT, i. e. , using the mean field of previous state, probability computation can be carried out as if input samples were independent each other.


