Resource Documents by Catcheside, Peter

Nguyen, Phuc; Hansen, Kristy; Lechat, Bastien; Catcheside, Peter; Zajamsek, Branko; and Hansen, Colin
Benchmark characterisation and automated detection of wind farm noise amplitude modulation 
[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 . . . Complete article »

Nguyen, Phuc; Hansen, Kristy; Catcheside, Peter; Hansen, Colin; and Zajamsek, Branko
Long-term quantification and characterisation of wind farm noise amplitude modulation 
[Abstract] The large-scale expansion of wind farms has prompted community debate regarding adverse impacts of wind farm noise (WFN). One of the most annoying and potentially sleep disturbing components of WFN is amplitude modulation (AM). Here we quantified and characterised AM over one year using acoustical and meteorological data measured at three locations near three wind farms. We found that the diurnal variation of outdoor AM prevalence was substantial, whereby the nighttime prevalence was approximately 2 to 5 times higher . . . Complete article »

Nguyen, Phuc; Hansen, Kristy; Zajamšek, Branko; and Catcheside, Peter
Evaluation of wind farm noise amplitude modulation synthesis quality 
Abstract – Wind farm noise amplitude modulation (WFNAM) is a major contributor to annoyance and could cause sleep disturbance. In laboratory listening experiments assessing its annoyance and sleep disturbance potential, WFNAM stimuli are commonly synthesised and can thus suffer from a lack of ecological validity. Here, five stimuli synthesis methods were compared with measured noise in terms of their perceived similarity. An ABX discrimination listening test and one-third octave band spectra were used for evaluation of the aural and visual similarity, . . . Complete article »

Hansen, Kristy; Nguyen, Phuc; Zajamšek, Branko; Catcheside, Peter; and Hansen, Colin
Prevalence of wind farm amplitude modulation at long-range residential locations 
ABSTRACT – The presence of amplitude modulation (AM) in wind farm noise has been shown to result in increased annoyance. Therefore, it is important to determine how often this characteristic is present at residential locations near a wind farm. This study investigates the prevalence and characteristics of wind farm AM at 9 different residences located near a South Australian wind farm that has been the subject of complaints from local residents. It is shown that an audible indoor low-frequency tone was . . . Complete article »

Hansen, Kristy; Nguyen, Phuc; Zajamšek, Branko; Micic, Gorica; and Catcheside, Peter
Pilot study on perceived sleep acceptability of low-frequency, amplitude modulated tonal noise 
Abstract— The global expansion of wind farm facilities has been associated with community complaints regarding sleep disturbance. This may be related to the presence of amplitude modulation (AM) in wind turbine noise (WTN), which has been shown to result in increased annoyance. However, at present, it is unknown whether acceptability for sleep is judged differently to annoyance or if AM may be more problematic for sleep than other noise types. Previous studies have also focused predominantly on ‘swish’ noise rather . . . Complete article »

Hansen, Kristy; Nguyen, Phuc; Zajamšek, Branko; Catcheside, Peter; and Hansen, Colin
Prevalence of wind farm amplitude modulation at long-range residential locations 
Abstract: The presence of amplitude modulation (AM) in wind farm noise has been shown to result in increased annoyance. Therefore, it is important to determine how often this characteristic is present at residential locations near a wind farm. This study investigates the prevalence and characteristics of wind farm AM at 9 different residences located near a South Australian wind farm that has been the subject of complaints from local residents. It is shown that an audible indoor low-frequency tone was . . . Complete article »

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