G - Physics – 10 – L
Patent
G - Physics
10
L
G10L 17/00 (2006.01) G10L 15/14 (2006.01)
Patent
CA 2173302
A new speaker verification method, termed Mixture Decomposition Discrimination, (MDD) and a new apparatus for using MDD are presented. MDD takes mixture component score information from a speaker independent recognizer and transmits this information while it is still decomposed as a mixture of component scores that indicate the response of the states of the HMM before this information is combined into a single speaker independent recognizer parameter. MDD can be veryeffective in improving the performance of existing verification methods based onspeaker dependent HMMs with cohort normalization because the errors of the two speaker verification methods are very uncorrelated statistically. Experimental results have shown that when MDD is incorporated into a system that also uses speaker dependent HMMs, the resulting hybrid system has its average equal error rate reduced by 46% compared to cohort normalized speaker independent HMM. MDD is used with a speaker dependent linear discriminator which has relatively low computational and storage requirements. Thus, the increased performance of a hybrid MDD/CNHMM system may be achieved with minimal increase in computational and data storage assets.
Gandhi Malan Bhatki
Setlur Anand Rangaswamy
Sukkar Rafid Antoon
At&t Ipm Corp.
Kirby Eades Gale Baker
LandOfFree
Speaker verification method and apparatus using mixture... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Speaker verification method and apparatus using mixture..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Speaker verification method and apparatus using mixture... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1458052