Subjective Preferences for Birdsong and Insect Song in Equal Sound Pressure Level
Subjective Preferences for Birdsong and Insect Song in Equal Sound Pressure Level
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DOI：
10.3390/app10030849
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发表时间：
2020-01
期刊：
影响因子：
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通讯作者：
Y. Soeta;Hiroko Kagawa
中科院分区：
文献类型：
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作者：
Y. Soeta;Hiroko Kagawa
鸟鸣在日本的火车站被用作视障人士的声音信号。然而，据报道，超过40%的视障人士难以定位这些声音信号。超过40%的视障人士表示，这些声音信号很难识别。鸟鸣声的声压级通常较低，因为较高的鸟鸣声会对用户或居民造成困扰。因此，应该调查鸟鸣的偏好。重要的是，鸟鸣和昆虫的歌声已经被证明对音景有积极的影响。然而，对不同类型的鸟鸣和昆虫鸣叫的偏好还没有调查。目前的研究试图澄清哪种类型的鸟鸣和昆虫鸣叫是首选，并确定与偏好相关的主要物理参数。我们使用配对比较测试评估了各种类型的鸟鸣和昆虫鸣叫的主观偏好。考察了主观偏好与身体参数之间的关系。结果表明，Horornis difone和Teleogryllus emma是日本常见的鸟类和昆虫鸣叫的最佳类型。自相关函数的最大峰值幅度是影响主观偏好的重要参数，其决定因素是音高显著性、响度和频谱内容，如质心、通量和滚降。
Birdsong is used as a sound signal for visually impaired people in train stations in Japan. However, such sound signals were reportedly difficult to be localized by over 40% of visually impaired people. More than 40% of visually impaired people reported that such sound signals were difficult to identify. The sound pressure level of birdsong is typically low because higher levels of birdsong can cause annoyance to users or residents. Therefore, preferences for birdsong should be investigated. Importantly, birdsong and insect song have been shown to have a positive effect on soundscapes. However, preferences for different types of birdsong and insect song have not been investigated. The current study sought to clarify which types of birdsong and insect song are preferred, and to determine the dominant physical parameters that relate to the preference. We evaluated subjective preferences for various types of birdsong and insect song using paired comparison tests. The relationships between subjective preference and physical parameters were examined. The results indicated that Horornis diphone and Teleogryllus emma were the most preferred types of birdsong and insect song, both of which are common in Japan. The maximum peak amplitude of the autocorrelation function, determinants of which are pitch salience, loudness, and spectral content, such as centroid, flux, and rolloff, are significant parameters influencing subjective preference.