Sound Quality Characteristics of the Cicada Singing Noise in Urban Areas
Sound Quality Characteristics of the Cicada Singing Noise in Urban Areas
复制标题
城市蝉鸣声的声品质特征
DOI：
--
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
J. Han
中科院分区：
文献类型：
--
作者：
Jinhoi Gu;Jaewon Lee;W. Lee;Kyunghee Choi;Chungyoul Seo;Hyung;Sam;J. Han
全球气候变暖引起了中纬度地区热带夜现象增多等环境变化。特别是在韩国，由于气候变暖，热带朝鲜方块鱼的栖息地已经从韩国南部的济州岛变成了整个韩国。由于各种户外灯光的影响，韩国热带地区块状的蝉会在半夜鸣叫，因此蝉鸣声已成为一个社会问题。该虫为正趋光性昆虫。所以，晚上睡觉的时候是不会哭的。但是如果室外的光线非常明亮，那么蚊子会把夜晚当成白天，并开始哭泣。因此，蝉鸣的声音引起了居住在市中心的居民的不愉快和失眠。在本研究中，我们在市区（仁川，光州，釜山，京畿道安阳）的16个点测量了三种唱歌噪声。然后利用CADA-X信号处理程序对这三种声振噪声的音质进行了分析。利用时频分析方法STFT（短时傅立叶变换）对声特性进行了分析。通过分析鸣音的音质特征和时频变化特征，可以揭示鸣音对人体的干扰与其声学特性之间的关系。
The global warming caused the changes of our environment like an increasing tropical night phenomenon in the middle latitude areas. Especially, in Korea, the habitats of tropical Korean blockish cicada have changed from Jeju island located in Southern part of Korea to the whole of Korea because of the increasingly warming weather. The cicadas crying sound have been social problem because the tropical Korean blockish cicadas cry at middle of the night owing to the various outdoor lights. The cicada is positive phototaxis insect. So, the cicada is not cry at night. But if the outdoor light is very bright, then the cicada confuse the night as a day and start to cry. As a result, the cicadas crying noise has caused the resident living in downtown to an unpleasure and sleeplessness. In this research, we have measured three kinds of cicada singing noise at 16 points of urban area(Incheon, Gwangju, Busan, Gyeonggido Anyang). And then we analyzed the sound quality of the three kinds of cicada singing noise using by CADA-X signal process program. And we analyzed the acoustical characteristics by STFT(short time Fourier transform) which is a time-frequency analysis method. The characteristics of the cicada singing noise in terms of the sound quality and the time-frequency variation will be usefull to discover the relations between the human annoyance about the cicada singing noise and the acoustical characteristics.