Seong, Y. et al. An Experimental Study on Rating Scale for Annoyance Due to Wind Turbine Noise
The 42nd International Congress and Exposition on Noise Control Engineering, Innsbruck, Austria, 15-18 September 2013
Wind turbine noise referred to as “swishing sound” causes annoyance due to the amplitude modulation of the aerodynamic noise from the blades. For that reason, many studies for rating scale realizing annoyance from the noise have been examined, but show little coherence with change of noise level. In the present study, an appropriate index for describing the annoyance tendency is suggested with jury test and correlation analysis. Twenty-eight stimuli created by numerical simulation for the test were provided and thirty-two subjects assessed noise-induced annoyance based on 7 point numerical scale. Additionally, a correlation analysis between sound descriptors and subjective annoyance was performed by using regression analysis with statistics software. This study shows that the maximum sound pressure level with fast time A-weighting (LAFmax) explains well the annoyance characteristics compared to the other descriptors considered. …