| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a stereo-sound expanding processing program capable of reducing a processing burden and capable of expanding the sound image of a stereo sound without lowering a sound located at a center and a stereo-sound expanding device. <P>SOLUTION: The stereo-sound expanding processing program contains a CPU, and the CPU generates the sound signal of a stereo regarding the sound required for a game. The CPU corrects the stereo sounds simultaneously reproduced in each sound source on the basis of the locations of each sound source, and mixes a plurality of the corrected stereo sounds of a sound volume with the stereo sounds of two channnels. Each of the sound signal (Lin) in the L channel of the mixed stereo sounds and the sound signal (Rin) in the R channel is separated into two systems (S21), and sound-image expanding signals (Lin-Rin) are generated (S23). The sound-image expanding signals are delayed (S25), addition signals obtained by adding the delayed sound-image expanding signals to Lin are generated (S27) and subtraction signals obtained by subtracting the delayed sound-image expanding signals from Rin are generated (S29). The addition signals are output from a loudspeaker for the L channel, and the subtraction signals are output from the loudspeaker for the R channel (S31). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
