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: Pressure Pulsations
Turbine Sickness-Lesson 3
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 20th June 2022- Updated By WFL educating-the-lawyers-lesson-3-turbine-sickness-1Download
Wind Turbine Noise – A Simple Statement of Facts – The Australian Experience
WIND TURBINE NOISE A Simple Statement of Facts – The Australian Experience Waubra Foundation-March 2016 Source: https://waubrafoundation.org.au/resources/wind-turbine-noise-simple-statement-facts-australian-experience/ Emission of Sound and Vibration Wind turbine blades produce airborne pressure waves (correctly labelled sound pressure waves but often called noise). Noise is that portion of the sound which is audible. The loudness, or power, of the sound … Continue reading Wind Turbine Noise – A Simple Statement of Facts – The Australian Experience
‘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 