| 摘要 |
PURPOSE:To separate a music signal to respective parts by extracting a harmonic vector from a sampled music signal, and outputting a fundamental frequency for the harmonic vector obtained by clustering the harmonic vector. CONSTITUTION:A signal fetching means 21 fetches musical tone signals played by plural musical instruments, and a frequency analyzing means 22 performs the frequency analysis of a fetched music signal, and a fundamental frequency extracting means 23 extracts the fundamental frequency from a result of analysis. A part separating means 24 separates each fundamental frequency to the part at every musical instrument, and an encoding means 25 calculates a scale from the fundamental frequency of each part, and converts it to a musical score. |
