| 摘要 |
PROBLEM TO BE SOLVED: To appropriately evaluate singing without assuming the existence of musical score data.SOLUTION: An interval setting unit sets a plurality of first pitch stable sections in which the pitch of a first singing signal showing one of the singing voices of the musical piece is stabilized; and a plurality of second pitch stable sections in which a second singing signal of the pitch showing the other singing voice of the musical piece is stabilized. A representative value calculation part calculates the representative value of the pitch of the first singing voice and the representative value of the second singing voice for each overlapping section in which each of the plurality of the first pitch stable sections and each of the plurality of second pitch stable sections are overlapped each other on a temporal axis. The estimation part estimates a degree of harmony between one singing voice and the other singing voice according to whether the representative value of the pitch of the first singing signal and the representative value of the pitch of the second singing signal in each overlapping section have a predetermined relation with each other.SELECTED DRAWING: Figure 1 |
