MUSIC PIECE IDENTIFICATION DEVICE AND ITS METHOD, MUSIC PIECE IDENTIFICATION AND DISTRIBUTION DEVICE AND ITS METHOD

摘要

PROBLEM TO BE SOLVED: To be able to easily identify a music piece name of a music piece by use of one segment of the music piece and also to distribute the music piece. SOLUTION: Music segment data 41 for one part of a music piece for a few second is transmitted to a power spectrum analysis part 43 and converted into a time frequency distribution. A feature matrix generation part 44 executes resampling of the time frequency distribution data from the power spectrum analysis part 43 at a prescribed frequency and time interval, and generates a music segment feature matrix (feature vector) Sfu. The data of the music segment feature matrix Sfuis transmitted to a matching part 45 and compared with a plurality of music feature matrixes Aftobtained from a database 35 to calculate the degree of similarity, so as to identify a music piece name to be a candidate out of music pieces registered already. COPYRIGHT: (C)2010,JPO&INPIT