Abstract This study investigates psychoacoustic aspects of the noise of multi-rotor type unmanned aerial vehicles (UAV). Two psychoacoustic experiments were performed for a dual purpose: to examine the difference of annoyance induced by the noise from three types of UAVs and a civil aircraft and also to identify the acoustic factors influencing the annoyance from UAV noise. In the first experiment, the annoyance of each stimulus was quantified from psychoacoustic tests and compared with each other. The psychoacoustic tests confirms that UAV noise generally causes more annoyance than civil aircraft noise at the same loudness level. The physical and psychoacoustic indices of the stimuli were analyzed statistically using principal component analysis and regression. The loudness, sharpness and fluctuation strength were derived as significant factors that affect the annoyance of UAV noise. In the second experiment, six new sound samples were created by modifying the sharpness and the fluctuation strength of one representative UAV noise to check the results of the first experiment. Regressions of the test results reaffirmed that the sharpness and fluctuation strength are significant in the annoyance of UAV noise.

中文翻译：

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影响悬停无人机噪音的音质因素

摘要 本研究调查了多旋翼式无人机 (UAV) 噪声的心理声学方面。两个心理声学实验具有双重目的：检查三种无人机和一架民用飞机噪声引起的烦扰度的差异，并确定影响无人机噪声烦扰度的声学因素。在第一个实验中，每个刺激的烦恼从心理声学测试中量化并相互比较。心理声学测试证实，在相同响度水平下，无人机噪音通常比民用飞机噪音更令人烦恼。使用主成分分析和回归对刺激的物理和心理声学指标进行统计分析。响度，锐度和波动强度被推导出为影响无人机噪声烦恼的重要因素。在第二个实验中，通过修改一个代表性无人机噪声的锐度和波动强度来创建六个新的声音样本，以检查第一个实验的结果。测试结果的回归再次证实了锐度和波动强度在无人机噪声的烦恼中是显着的。