| 摘要 |
PURPOSE:To obtain the automatic score generation device which analyzes the frequency of an input music signal, extracts a fundamental frequency from the result and converts it into note information, and then generates chords matching the progress of music according to the note information. CONSTITUTION:The note information on the music is obtained by a signal input part 21, an FFT process part 22, a fundamental frequency candidate extraction part 23, and a note information conversion part 24 and a chord candidate extraction part 25 extracts chord candidates according to the note information; and a key determination part 26 determines the key of the music according to the extracted chord candidates, a chord structure part 27 structures the chords according to the chord candidates and the key of the music, and an output part 28 outputs the chords. |
