Documents filed under Noise from Germany

Effects of the wind profile at night on wind turbine sound

Gpvandenberg_thumb This significant research by van den Berg explains why turbine noise as far away as 1900 meters (more than 6,000 feet) is resulting in complaints by residents particularly at night. The paper concludes that noise immission predictions are not accurate and result in the understating of turbine noise levels, particularly during nighttime conditions.
22 Sep 2003

A case study of low frequency noise assessed using DIN 45680 criteria

J165244-casestudylowfrequencynoise_thumb This paper describes a case study in which low frequency noise (LFN) was suspected of causing disturbance in a semi-rural location close to an industrial estate. Previous attempts using conventional acoustic measurement techniques to resolve the case, or even prove the existence of a real acoustic problem, had proved unsuccessful. The study does not involve wind turbine noise directly, but the work done and resulting findings provide insight into identifying the problem of LFN and predicting annoyance.
1 Jan 2002
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