| 主权项 |
1. A harmonic adding device comprising:
an input/output function part that is set with an input/output function determining relationship between an input signal level and an output signal level, the input/output function part receiving a digital sound signal having an input signal level, converting the received digital sound signal into a digital sound signal having an output signal level determined according to the input/output function and the input signal level of the received digital sound signal, and outputting the converted digital sound signal having the determined output signal level; a parameter storage unit that is configured to store at least one inflection point set to the input/output function for enabling the input/output function part to add harmonics to the received digital sound signal; and a controller that is configured to set the inflection point stored in the parameter storage unit to the input/output function of the input/output function part, wherein the input/output function has the relationship between a positive maximum point at which the output signal level represents a first positive maximum value when the input signal level corresponds to a second positive maximum value and a negative maximum point at which the output signal level represents a first negative maximum value when the input signal level corresponds to a second negative maximum value, the inflection point is set between the positive maximum point and the negative maximum point, and the positive maximum point, the inflection point and the negative maximum point are sequentially connected by linear interpolation to formulate the input/output function. |
