Signal processing method of audio sensing device, and audio sensing system

An audio sensing system comprising:

• an audio sensing device including a plurality of resonators, wherein a first frequency band of a first resonator of the plurality of resonators is different from a second frequency band of a second resonator of the plurality of resonators;
• a controller configured to set, for each of the plurality of resonators, a plurality of time frames having a time interval, wherein time frames set for at least the first resonator have a first time interval and time frames set for at least the second resonator have a second time interval, different from the first time interval;
• and
• a signal processor configured to calculate a sound feature for each of the plurality of time frames for each of the plurality of resonators, each sound feature being calculated based on an audio signal detected by one of the plurality of the resonators.