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Auditory masking of wind turbine noise with ambient sounds
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2010 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

The expansion of wind energy production creates an increase in wind turbine (WT) noise. The purpose of this paper is to examine if a possible reduction of WT noise might be achieved by adding natural ambient sounds, so called auditory masking. A loudness experiment was conducted to explore this possibility, using four ambient sounds of trees, birds and water as maskers. Sixteen listeners assessed the loudness of WT noise heard alone or in the presence of 40 dB masking sounds, using the method of magnitude estimation. Partial masking of WT noise was found in the presence of all ambient sounds. The masking effect corresponded to a dB-reduction of the WT noise from a few dB for signal-to-noise ratios (S/N) close to 0 dB up to around 10 dB at -15 dB S/N. These results indicate that addition of ambient sounds may be a useful method for masking unwanted noise from wind turbines.

Place, publisher, year, edition, pages
2010. , 8 p.
Keyword [en]
auditory masking, windturbine, soundscape, magnitude estimate, koyoto
National Category
URN: urn:nbn:se:su:diva-37438OAI: diva2:301979
2010-02-22, 00:00 (English)
Social and Behavioural Science, Law
Available from: 2010-03-05 Created: 2010-03-03 Last updated: 2010-03-05Bibliographically approved

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