Patent ID: 6031916
Filing Date: 2000-02-29
Classification: G10H

Abstract:
A sound effect adding device controlled by a main arithmetic circuit and capable of simultaneously selecting and processing a plurality of sound effects using a DSP, said sound effect adding device comprising an instruction storage section in said DSP for storing a main routine including a program for controlling an input and an output of an audio signal, and a plurality of selected sound effect adding routines transferred from said main arithmetic circuit from among selectable sound effect adding routines when necessary and operable when accessed by said main routine,wherein said main routine has a function to assign the input audio signal to the selected sound effect adding routines and collect sound effect added signals outputted from said selected sound effect adding routines so as to provide an output signal, and wherein, by changing coefficient data transferred from said main arithmetic circuit and stored in said DSP, said main routine performs change in connection between said input and output signals so as to change a combination of said sound effects without altering said main routine.