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 method executed by a computer configured to control an information processing apparatus, the information processing method causing the computer to:

• set a first parameter virtually indicating loudness of a sound, for each of a plurality of sound data,
• the first parameter corresponding to a value indicated at a distance at which a second parameter serves as a reference, the second parameter indicating loudness of a virtual sound in a virtual space and being 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, the sound volume attenuation characteristic indicating a relationship between the distance and a degree of attenuation of the sound volume.

An information processing system comprising a processor, the processor being configured to:

• set a first parameter virtually indicating loudness of a sound, for each of a plurality of sound data,
• the first parameter corresponding to a value indicated at a distance at which a second parameter serves as a reference, the second parameter indicating loudness of a virtual sound in a virtual space and being 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, the sound volume attenuation characteristic indicating a relationship between the distance and a degree of attenuation of the sound volume.

An information processing apparatus comprising a processor, the processor being configured to:

• set a first parameter virtually indicating loudness of a sound, for each of a plurality of sound data,
• the first parameter corresponding to a value indicated at a distance at which a second parameter serves as a reference, the second parameter indicating loudness of a virtual sound in a virtual space and being 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, the sound volume attenuation characteristic indicating a relationship between the distance and a degree of attenuation of the sound volume.