THE 3D SURROUND SYSTEM BY SIGNAL DELAY TIME/LEVEL ATTENUATION AND THE REALIZABLE METHOD THEREOF

摘要

A 3D-surround system using a signal delay and a level attenuation and a method for implementing the same are provided to supply a 3D-surround effect caused by a delay time difference by modulating and outing the result of mixing after generating data level-attenuated and mixing an unbuffered signal. A method for implementing a 3D-surround system using a signal delay and a level attenuation includes the steps of: converting a digital signal of a sound source to an analog signal(1); allocating a buffer memory space for storing a converted signal temporarily(2); separating a left signal and a right signal from a separated signal and analyzing the converted left signal(3); analyzing the converted right signal(4); detecting the right signal from the analyzed left signal and buffers the detected right signal in a buffer memory(5); detecting the left signal from the analyzed right signal and buffers the detected left signal in the buffer memory(6); starting a level attenuation for the right signal outputted through the buffer(7); starting a level attenuation for the left signal outputted through the buffer(8); mixing the level-attenuated right signal and the converted left signal(9); and mixing the level-attenuated left signal and the converted right signal(10); and outputting the mixed signal of the step 9 to a left side(11); and outputting the mixed signal of the step 10 to a right side.