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

An information processing system, comprising:

• a processor;
• and
• a memory configured to store compute readable instructions that, when executed by the processor, cause the information processing system to:
• set a first parameter associated with a virtual sound pressure level and virtually indicating loudness of a sound, for each of a plurality of sound data, wherein the first parameter corresponds to a value indicated at a distance at which a second parameter serves as a reference, the second parameter indicates loudness of a virtual sound in a virtual space and is attenuated in accordance with a distance from a position of a sound source to a virtual microphone in the virtual space;
• and
• for each of the sound data, on the basis of at least second parameter attenuation characteristic data indicating a relationship, between a value of the second parameter and the distance, varied in accordance with a value of the first parameter, and the first parameter set in the sound data, set a sound volume attenuation characteristic used when a sound volume at which the sound data is outputted is attenuated in accordance with the distance from the sound source associated with the sound data, wherein the sound volume attenuation characteristic indicates a relationship between the distance and a degree of attenuation of the sound volume.

An information processing apparatus, comprising:

• processing circuitry including a processor, wherein the processing circuitry is configured to:
• set a first parameter associated with a virtual sound pressure level and virtually indicating loudness of a sound, for each of a plurality of sound data, wherein the first parameter corresponds to a value indicated at a distance at which a second parameter serves as a reference, the second parameter indicates loudness of a virtual sound in a virtual space and is attenuated in accordance with a distance from a position of a sound source to a virtual microphone in the virtual space;
• and
• for each of the sound data, on the basis of at least second parameter attenuation characteristic data indicating a relationship, between a value of the second parameter and the distance, varied in accordance with a value of the first parameter, and the first parameter set in the sound data, set a sound volume attenuation characteristic used when a sound volume at which the sound data is outputted is attenuated in accordance with the distance from the sound source associated with the sound data, wherein the sound volume attenuation characteristic indicates a relationship between the distance and a degree of attenuation of the sound volume.