There are technical difficulties in producing an accurate wind turbine noise signal for subjective testing of the noise characteristics for different operational scenarios of wind turbines. There are differences in the subjective response when limiting the test signals to infrasound only versus the use of full spectra. The concept of “nocebo” effect that has been presented has relied upon the use of “synthesised wind turbine infrasound” that does not reflect the signature or pressure pulsations observed in full-spectrum field measurements. The validity of “synthesised wind farm infrasound signals” that have been used in such testing is examined and compared with full-spectrum signals.
Steven Cooper, The Acoustic Group, Australia
Proceedings of the 23rd International Congress on Acoustics, 9–13 September 2019, Aachen, Germany: pages 912–919
Download original document: “The use of synthesised or actual wind turbine noise for subjective evaluation purposes”
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