Patent ID: 6961703

Claim:
A method of speaker verification by matching a claimed speaker with a known speaker, including the steps of processing spoken input enrollment speech data and test speech data, generating respective match scores therefrom, and determining whether the test speech data corresponds with the enrollment speech data, the method comprising: forming enrollment speech data as a first plurality of pair-phrases using a set of words, the set of words consisting of a predetermined number of words, wherein the set of words are words between one to nine and at least one bridging word “ti”; forming test speech data as a second plurality of pair-phrases from the same set of words, the second plurality of pair-phrases different from the first plurality of pair-phrases; converting, by a Baum-Welch algorithm, the first plurality of pair-phrases into a first set of adapted HMM word models; converting, by the Baum-Welch algorithm, the second plurality of pair-phrases into a second set of adapted HMM word models; ordering the first set of adapted HMM word models into a first sequence; ordering the second set of adapted HMM word models into a second sequence, the second sequence and the first sequence having the same order and the same predetermined number of words; and comparing the first and second sets of adapted HMM word models using a weighted Euclidean distance.