| 摘要 |
PURPOSE:To obtain the rich musical tone having naturality by providing a fluctuation coefficient signal generating means which generates different phase fluctuation coefficient signal at each order of each component. CONSTITUTION:The counter 23 which outputs a period signal betar and a counter 20 which addresses a fluctuation memory 24 are mutually in a synchronous relations and differ in frequency and therefore the change modes of the period signal betar and phase fluctuation coefficient signal alphan become mutually different. Here, if it is assumed that the phase fluctuation coefficient signal alphan of the same order is being kept inputted to one addition input of an adder 25, it turns out that the periodically changing period signal is outputted from the adder 25. Hence, the adder 25 differs with time even of the same order and outputs the different period signals at each higher harmonic order as phase period signal thetanr. |
