Abstract
This paper investigated the subjective effects of hovering drone noise in a laboratory environment. Five drone noise samples with varying spectral features were gathered through field measurements and presented to subjects through headphones in an auditory test room, adjusting the sound pressure levels and considering the listener's distance from the drone. The presentation of images and videos of the hovering drones aimed to enhance the immersive experience of the subjects. The perceived loudness, noisiness, and annoyance of the drone noises were evaluated on 11-point scales. The findings revealed that all subjective evaluations were closely linked to the overall noise levels and significantly correlated with specific tonal frequency bands. The study discussed the limit of acceptable drone noise based on the high levels of annoyance reported. The impact of visual stimuli on noise perception was also examined by comparing results when drone images and videos were present versus absent.
Published Version
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