TEMPO ANALYSIS DEVICE AND TEMPO ANALYSIS METHOD

摘要

There is provided a tempo analysis device for analyzing the tempo of a musical composition. According to the level information contained in a sound signal from an analysis data extraction section (62), a control section (9) detects a peak position (level change apex) above a predetermined level by using a frame of a predetermined unit time section as a processing unit, calculates the interval between the peak positions (peak interval) in the frame duration, and decides the peak interval occurring with a high frequency as a tempo.