| 摘要 |
PURPOSE:To enable giving a distortion effect of which distortion start is smooth to an audio signal with simple constitution by providing an adding means which adds each output signal of at least two distortion giving means. CONSTITUTION:This circuit is provided with an input terminal 6 to which a digital audio signal is input, amplification multipliers 7-12 which multiply respectively input data by coefficients for amplification k1-k6 to distort signals, and attenuation multipliers 13-18 which multiply respectively input data by coefficients for attenuation r1-r6. Also, this circuit is provided with an adder 19 which adds each output data of the attenuation multiplier 13-18, an adjustment multiplier 20 which multiplies output data of the adder 19 by a coefficient (m) for adjustment, and an output terminal 21 which outputs an audio signal to which a distortion effect is given. And when signals having desired waveforms inputted to each amplification multiplier 7-12, after distortion effects in which each characteristic is different are given in each amplification multiplier 7-12, they are added in the adder 19. |
