Apparatus and method for creating singing synthesizing database, and pitch curve generation apparatus and method

A singing synthesizing database creation method comprising:

• a step of inputting learning waveform data representative of sound waveforms of singing voices of a singing music piece and learning score data representative of a musical score of the singing music piece;
• a step of analyzing the learning waveform data to identify variation over time in fundamental frequency component presumed to represent a melody in the singing voices and then generating melody component data representative of the variation over time in fundamental frequency component;
• and
• a step of generating, in association with a combination of notes constituting the melody of the singing music piece, melody component parameters by performing predetermined machine learning using the learning score data and the melody component data, said melody component parameters defining a melody component model that represents a variation component presumed to be representative of the melody among the variation over time in fundamental frequency component between notes in the singing voices, and then storing, into a singing synthesizing database, the generated melody component parameters and an identifier indicative of the combination of notes to be associated with the melody component parameters.

A non-transitory computer-readable storage medium containing a program for causing a computer to perform a singing synthesizing database creation method, said singing synthesizing database creation method:

• a step of inputting learning waveform data representative of sound waveforms of singing voices of a singing music piece and learning score data representative of a musical score of the singing music piece;
• a step of analyzing the learning waveform data to identify variation over time in fundamental frequency component presumed to represent a melody in the singing voices and then generating melody component data representative of the variation over time in fundamental frequency component;
• and
• a step of generating, in association with a combination of notes constituting the melody of the singing music piece, melody component parameters by performing predetermined machine learning using the learning score data and the melody component data, said melody component parameters defining a melody component model that represents a variation component presumed to be representative of the melody among the variation over time in fundamental frequency component between notes in the singing voices, and then storing, into a singing synthesizing database, the generated melody component parameters and an identifier indicative of the combination of notes to be associated with the melody component parameters.