Abstract: A non-limiting example sound processing system is functioned by a game system that includes a game apparatus, a display device and a plurality of speakers. For example, the plurality of speakers are arranged so as to constitute a surround system. When the game apparatus performs control processing of a game, a game screen is displayed on the display device and a game sound is output from respective speakers. When generating a game sound, a terrain in a virtual space is checked in a grid-like shape within a predetermined range centered on a listener who is located in the virtual space, and a plurality of arrangement position candidates for sound source are set, and a part of arrangement position candidates to be the forefront with respect to the listener are selected from the plurality of arrangement position candidates for sound source.

Abstract: A game apparatus includes a CPU, and the CPU generates a game Background Music (BGM) corresponding to a proceeding situation of a game, and etc. The CPU selects data, from a main memory conductor, according to the proceeding of the game, and etc., and generates BGM data regarding one or more track data included in the conductor data. When generating the BGM data, rhythm data, within a rhythm group designated by the track data, is selected in predetermined order or at random, and phrase data, within the same designated phrase group, is selected at random. Then, the BGM data is generated from the selected rhythm data and the phrase data.

Abstract: Acceleration data outputted from an acceleration sensor provided in an input device is acquired and a magnitude of an acceleration is calculated. Next, based on the calculated magnitude of the acceleration, at least one piece of track data representing a target music to play is selected from music piece data including a plurality of pieces of track data stored in memory means. Then, based on the selected track data, data for controlling a sound generated from a sound generation device is outputted.

Abstract: Acceleration data outputted from an acceleration sensor provided in an input device is acquired and a magnitude of an acceleration is calculated. Next, based on the calculated magnitude of the acceleration, at least one piece of track data representing a target music to play is selected from music piece data including a plurality of pieces of track data stored in memory means. Then, based on the selected track data, data for controlling a sound generated from a sound generation device is outputted.

Abstract: A game apparatus includes a CPU, and the CPU generates a game BGM corresponding to a proceeding situation of a game, and etc. The CPU selects from a main memory conductor data according to the proceeding of the game, and etc., and generates BGM data regarding one or more track data included in the conductor data. In a case of generating the BGM data, rhythm data within a rhythm group designated by the track data is selected in predetermined order or at random, and phrase data within the same designated phrase group is selected at random. Then, the BGM data is generated from the selected rhythm data and the phrase data.