| 摘要 |
PURPOSE:To faithfully reproduce musical sounds with a smaller number of samplings by reading retrieved analytical parameters and synthesizing musical sound signals after correcting them to become prescribed musical pitches. CONSTITUTION:Analytical parameters for synthesizing musical sound signals are stored in an analytical parameter memory 10. The parameters consist of the spectral envelop data which resolve musical sounds into frequency spectra and the frequency data of each spectrum component. An amplitude deciding circuit 13 determines amplitude values of the frequency components based on the spectral envelop data and the frequency data inputted from the memory 10 for every frame and ouputs them. These amplitude data are inputted to sine wave generating circuit 14 and sine waves with the spectral components based on the inputted amplitude data and the frequency data are synthesizead. That is, specific musical sound pitch analytical parameters, in which frequencies of musical sounds become natural harmonics tone are modified and then synthesized. |
