Audio segment representations similarity measurement calculating method for speaker tracking, involves attributing weighting factor, representing intraclass similarity measurement between representations, to basic similarity measurement

摘要

#CMT# #/CMT# The method involves determining a weighting factor for each audio segment of a class to which an audio segment to be tested belongs. The factor represents an intraclass similarity measurement between representations of the segment to be tested and the segment. The determined factor is attributed to a basic measurement of similarity of the relating segment. A measurement of similarity is obtained from the weighted basic measurements. The intraclass measurement is obtained by applying a similarity measurement calculation function different from that utilized for basic measurement calculation. #CMT# : #/CMT# Independent claims are also included for the following: (1) a reference speaker tracking method (2) a similarity measurement calculating device (3) a reference speaker tracking device comprising the similarity measurement calculating device (4) a computer program comprising program instructions adapted to the implementation of a similarity measurement calculating method. #CMT#USE : #/CMT# Used in a microcomputer integrated in a computer or a sound processing apparatus, for calculating measurement of similarity between a representation of a reference audio e.g. speech, segment and a representation of an audio segment to be tested for speaker tracking (claimed). #CMT#ADVANTAGE : #/CMT# The attribution of the weighting factor to the basic measurement of similarity of the corresponding segment permits to differentiate the non homogeneity influence of segments on the calculation of the similarity measurement between the representations of the reference segment and the segment to be tested. The intraclass measurement is obtained by applying a similarity measurement calculation function different from that utilized for basic measurement calculation, thus adapting the similarity measurement calculation to the acoustic environment and optimizing the calculation. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a flowchart illustrating the main steps of a similarity measurement calculating method. `(Drawing contains non-English language text)`.