| 摘要 |
PURPOSE:To generate diverse sound effect which are rich in variation. CONSTITUTION:An input signal is inputted to a positive half-wave detecting circuit 1 and a negative half-wave detecting circuit 2. The signal is divided by those circuits 1 and 2 into a positive half wave and a negative half wave. Those divided input signals are inputted to delay elements 3 and 4 respectively and delayed by mutually independent delay times. The outputs of those delay elements 3 and 4 and the input signal are inputted to attenuation quantity adjusters 5, 6, and 7 and adjusted in amplitude by mutually independent attenuation quantities. The outputs of the attenuation quantity adjusters 5, 6, and 7 are added together by an adder 8, whose output is sent out as an output signal. The delay times and attenuation quantities of the respective parts can be determined independently of one another, so various synthesized waveforms can be generated as the sound effect output according to combinations of the delay times and attenuation quantities. |
