Patent ID: 8696457
Filing Date: 2014-04-15
Classification: H04S

Abstract:
1. A game sound field creator in a game apparatus connected to speakers located at two or more positions, through which sound track data from a sound source having two or more sound channels that is located at predetermined positions in a virtual space formed in a memory space can be respectively outputted from the speakers in association with a position of a player character located in said memory space, said two or more sound channels being set corresponding to a position where each of said speakers is located, in said game apparatus, said player character can freely move in said virtual space by a player through an input means, said game sound field creator comprising: a distance computer that computes a spaced distance between said sound source and said player character in said virtual space; a direction computer that computes a direction of said sound source to said player character in said virtual space; a distance judger that judges as to whether said spaced distance is a first distance or shorter, is a second distance or longer, or between the first distance and the second distance, wherein the second distance is greater than the first distance; a first output means that respectively outputs sound track data of said two or more sound channels to said speakers located at positions corresponding to said two or more sound channels if said spaced distance is said first distance or shorter; a second output means that stops output of said sound track data of said two or more sound channels if said spaced distance is said second distance or longer; a virtual development angle computer that computes a virtual development angle of each of said two or more sound channels corresponding to said spaced distance so as to make said virtual development angle smaller, as said spaced distance is made longer, between a default development angle of said first distance and zero (0) degree of said second distance if said spaced distance is between said first distance and said second distance; an actual angle converter that converts said obtained virtual development angle of said each sound channel into an actual angle adding a direction of said sound source; and output assignment reproducer that assigns said sound track data of each sound channel to one or more said speakers based upon said converted actual angle of said each sound channel and reproduces the assigned data.