Computer-readable non-transitory storage medium having stored therein sound processing program, information processing apparatus, sound processing method, and information processing system

An information processing apparatus, comprising a processor configured to at least:

• dispose at least one virtual sound source in a virtual space captured by a virtual camera;
• calculate a sound volume parameter based on a first distance between (i) the virtual space to the virtual sound source and (ii) a sound volume reference line extending from the virtual camera to a position of an object in the virtual space;
• calculate a sound quality parameter based on a second distance between the virtual space to the virtual sound source and the position of the object;
• and
• output a sound associated with the virtual sound source, with a sound volume based on the sound volume parameter and a sound quality based on the sound quality parameter.

A sound processing method to be executed by a computer that controls an information processing apparatus, the method comprising:

• disposing at least one virtual sound source in a virtual space captured by a virtual camera;
• calculating a sound volume parameter based on a first distance between (i) the virtual sound source and (ii) a sound volume reference line extending from the virtual camera to a position of an object in the virtual space;
• calculating a sound quality parameter based on a second distance between the virtual sound source and the position of the object;
• and
• outputting a sound associated with the virtual sound source, with a sound volume based on the sound volume parameter and a sound quality based on the sound quality parameter.

An information processing system, comprising:

• a speaker;
• and
• a processor configured to at least:
• dispose at least one virtual sound source in a virtual space captured by a virtual camera;
• calculate a sound volume parameter based on a first distance between (i) the virtual space to the virtual sound source and (ii) a sound volume reference line extending from the virtual camera to a position of an object in the virtual space;
• calculate a sound quality parameter based on a second distance between the virtual sound source and the position of the object;
• and
• output to the speaker a sound associated with the virtual sound source, with a sound volume based on the sound volume parameter relevant and a sound quality based on the sound quality parameter.