September 2019, By TAG, Steven Cooper; Aachen, Germany, ICA 2019 paper-71-synthesised-signals-1Download See Also; https://defrock.org/2021/10/10/the-use-of-synthesised-or-actual-wtn-for-subjective-evaluation-tag/
Tag: Blade Pass Frequency
Wind Turbines Problems- Lesson 2
The Problems With Wind Turbines-Lesson 2 Wind Farm Living has collated a series “Educating the Lawyers” and suggest this information may be freely used as needed, e.g. in a letter box drop. ~ DeFrock Updated 20th June 2022 By WFL educating-the-lawyers-lesson-2-the-problems-with-wind-turbinesDownload
Psychoacoustics To The Rescue
26th May 2021 By Steven Cooper. Wind Turbine Noise: Psychoacoustics to the Rescue. Forum Acusticum, Dec 2020, Lyon, France wind turbine noise psychoacousticsDownload Protecting the acoustic amenity of communities living near wind farms is at the forefront of Steven Coopers outstanding work. Effective investigation of wind turbine noise requires working with residents, utilising residents diaries … Continue reading Psychoacoustics To The Rescue
A Proposed Metric For Assessing The Potential Of Community Annoyance From Wind Turbine Low-Frequency Noise Emissions- 1987
http://www.windaction.org/posts/38138-a-proposed-metric-for-assessing-the-potential-of-community-annoyance-from-wind-turbine-low-frequency-noise-emissions#.Xy5gGChKjIU This paper, presented at the Windpower ’87 Conference & Exposition in San Francisco by N.D. Kelley, a physicist at the Solar Energy Research Institute in Golden, Colorado validates the fact that turbines (both upwind and downwind) produce low-frequency sound emissions that can negatively impact humans within their homes. Although modern wind turbines are different … Continue reading A Proposed Metric For Assessing The Potential Of Community Annoyance From Wind Turbine Low-Frequency Noise Emissions- 1987
Battling Spin For Brolgas
"...brolgas are not breeding within 5km of wind farms in Victoria."- Hamish Cumming.
‘Sensing but not Hearing’: Steven Cooper On Wind Turbine Nuisance-Part 2.
'I suggest that with respect to the description of wind turbine noise it is a matter of terminology that needs a shift as follows:
The language should be pulsations at an infrasound rate.
Modulation of the entire signal at an infrasound rate. (Zwicker and Fastl call this fluctuation as a sensation detected by the ear).
AM is present as some discrete low frequencies modulated at the bpf.
UK method of AM is determining the modulation index of the fluctuating signal (not technically AM).
You can determine the Modulation Index of the low frequency noise that is AM.' -Steven Cooper.
DeFrock 