Information processing device and information processing method

An information processing method, comprising:

• in an information processing device:
• calculating, based on positional information indicating a plurality of observation positions in a space and an audio signal of sound observed at each of the plurality of observation positions, an amplitude or phase of the sound at each of a plurality of positions in the space at a first time interval;
• detecting an event;
• and
• performing, based on the detection of the event, control such that the amplitude or the phase is calculated at a second time interval shorter than the first time interval.

A non-transitory computer-readable medium having stored thereon, computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:

• calculating, based on positional information indicating a plurality of observation positions in a space and an audio signal of sound observed at each of the plurality of observation positions, an amplitude or phase of the sound at each of a plurality of positions in the space at a first time interval;
• detecting an event;
• and
• performing, based on the detection of the event, control such that the amplitude or the phase is calculated at a second time interval shorter than the first time interval.