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Benchmark characterisation and automated detection of wind farm noise amplitude modulation 

Author:  | Noise

[Abstract] Amplitude modulation (AM) is a characteristic feature of wind farm noise and has the potential to contribute to annoyance and sleep disturbance. Detection, quantification and characterisation of AM is relevant for regulatory bodies that seek to reduce adverse impacts of wind farm noise and for researchers and wind farm developers that aim to understand and account for this phenomenon. We here present an approach to detect and characterise AM in a comprehensive and long-term wind farm noise data set using human scoring. We established benchmark AM characteristics, which are important for validation and calibration of results obtained using automated methods. We further proposed an advanced AM detection method, which has a predictive power close to the practical limit set by human scoring. Human-based approaches should be considered as benchmark methods for characterising and detecting unique noise features.

Phuc D. Nguyen, Kristy L. Hansen, Bastien Lechat, College of Science and Engineering, Flinders University, Australia
Peter Catcheside, Branko Zajamsek, Adelaide Institute for Sleep Health, Flinders University
Colin H. Hansen, School of Mechanical Engineering, University of Adelaide

Applied Acoustics, Volume 183, 1 December 2021, 108286
doi: 10.1016/j.apacoust.2021.108286

Download original document: “Benchmark characterisation and automated detection of wind farm noise amplitude modulation

This material is the work of the author(s) indicated. Any opinions expressed in it are not necessarily those of National Wind Watch.

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