Cicada noise is not a problem yesterday today. The reason for the increase in the cry of the cicadas in
the urban area is that the population of cicadas has increased rapidly. The sound of a cicada is the same
as in the past, but the number of male cicadas living in a tree increases, and it sounds louder because it
waits for a cry without resting as it competes with each other. The size of the cry of the horseshoe is
about 80dB, which is equivalent to the noise (80 ~ 100dB) when the train passes. In this paper, visual representation of the cicadas crossover over human - audible frequencies, as well as visualization of the
duration of the cicadas, are presented to illustrate the frequency distribution and repeatability of the cicadas.
The frequency range that humans can hear is 20 to 20,000 Hz (hertz). Among these, the best sound is
heard near 3500 Hz, and the frequency of cicadas is about 2500 to 5500 Hz. The sound of the cicada in
the apartment complex can be heard louder with a reflection on the apartment wall that is soaring.
Resonance may appear as the vibrations of the cicadas are reflected on the walls. "If the cry of 10 is
reflected on the wall, 100 cry can be heard as a crying