Patent ID: 6308153
Filing Date: 2001-10-23
Classification: G10L

Abstract:
A method for comparing the voice of a user and a claimant comprising:accepting a user speech signal representing a word sequence spoken by the user;applying a speech processing procedure to the user speech signal including (a) producing a sequence of user frames, each frame being associated with one of a sequence of time intervals of the user speech signal, and (b) associating each of the sequence user frames with a corresponding region of a word in the word sequence in the user speech signal;for each user frame in the sequence of user frames,selecting a plurality of claimant frames such that each of the selected claimant frames is associated with a region of a word that is the same as the region of a word with which said user frame is associated, andcomparing said user frame with each of the selected plurality of claimant frames; anddetermining whether the user speech signal includes the claimant's speech, including combining a product of the comparisons of each user frame with the selected claimant frames.