| 摘要 |
PROBLEM TO BE SOLVED: To easily and efficiently create trial contents to characterize a musical composition when creating the trial contents from music contents including a file of digital playing information for automatically playing the musical composition and a file of voice information included in the musical composition. SOLUTION: The playing pattern of the digital playing information in the music contents is analyzed, and the digital playing information is divided into a plurality of sections according to the analysis results. Meanwhile, the envelope of voice information in the music contents is detected, and the voice information is divided into a plurality of sections from the increase and decrease tendency of the detected envelope. Each section of digital playing information and voice information is collated, and an extraction range that characterizes the musical composition is determined, The part of digital playing information and the part of voice information corresponding to the determined extraction range are extracted, and then the trial contents are composed by using them. |
