Paper Info
Title
Phoneme-Balanced And Digit-Sequence-Preserving Connected Digit Patterns For Text-Prompted Speaker Verification
Abstract
This paper presents a novel design of connected digit patterns to achieve high accuracy text-prompted speaker verification over a cellular phone network. To reduce the error rate. a phoneme-balanced connected digit pattern for enrollment, and digit-sequence-preserving connected digit patterns for verification (i.e. patterns preserving partial digit sequences of the enrollment pattern) are proposed. In addition to these, a decision procedure using multiple patterns has been designed to overcome the low quality of cellular phone speech. Experimental results on cellular phone speech showed the phoneme-balanced patterns for enrollment and digit-sequence-preserving patterns for verification reduced more than 50% of equal error rate compared to the conventional method using randomly selected and randomly-reordered digit patterns. The decision procedure reduced 60% of the error rate. In addition, this paper shows that verification patterns depending on the pattern of a preceding utterance reduced 10% of the error rate. Overall, the error rate obtained by the proposed method was 1 % for 99% of clients and 95% of impostors.
Year
Venue
Keywords
2004
IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS
speaker verification, connected digit pattern, HMM
Field
DocType
Volume
Speaker verification,Computer science,Numerical digit,Speech recognition,Hidden Markov model
Journal
E87D
Issue
ISSN
Citations 
5
1745-1361
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Tsuneo Kato1227.64
Tohru Shimizu25712.85