| 摘要 |
PURPOSE:To synthesize musical sound in which oscillations are reflected and which have high reality by taking signals respectively out of at least two points in a musical sound forming means, mixing the respective signals at a desired mixing ratio and outputting the same as a musical sound signal. CONSTITUTION:This device has a closed loop circuit 100 which simulates the string of a violin, an excitation circuit 101 which generates the excitation signal corresponding to the excited oscillations that a bow applies to the string, a mixing section 102 and a control section 103. The mixing section 102 consists of multipliers 31, 32 and an adder 33. The speed difference signal VAS is multiplied by the coefft. gamma1 of multiplication by a multiplier 31 and the signal (1/2)VAM is multiplied by the coefft. gamma2 of multiplication by a multiplier 32. These signals are added by an adder 33 and are outputted as the musical sound signal. The signals are taken out of at least the two points of the closed loop circuit 100 in such a manner and since the respective signals are mixed at the desired ratio, the musical tones in which the oscillations of the respective parts of the sound producing body of a natural musical instrument are reflected and which have the high reality are thus synthesized. |
