AUTOMATIC SEGMENT EXTRACTION SYSTEM FOR EXTRACTING SEGMENT IN MUSIC PIECE, AUTOMATIC SEGMENT EXTRACTION METHOD, AND AUTOMATIC SEGMENT EXTRACTION PROGRAM

摘要

A segment automatic extracting system provides applications with an impressive segment of a musical composition as metadata on the composition by extracting a portion of the composition likely to be widely known by general users irrespective of the number of appearances in the composition. Associated method and program are also described. A first acoustic signature (AS) creating section creates an AS representing the feature value of the acoustic signal of each of contents. An important segment extracting section creates an acoustic segment signature representing the frequently appearing feature value from searching all created ASs. A second AS creating section creates an AS from the composition signal. A common segment extracting section judges whether each acoustic segment signature agrees with a part of the AS of the composition signal and outputs time information by which the AS of the musical signal agreeing with the AS can be specified.