Major US Agencies Aware Wind Turbine Infra-Sound For 40 Years

U.S. Dept of Energy-Aware of Wind Turbine Infra-Sound 40 Years

Boone, North Carolina DOE/NASA intermittent "thumping" sound and vibrations 1985

Acoustic Noise Associated with the MOD 1 Wind Turbine: Its Source, Impact, and Control

Prepared for the U.S. Department of Energy Contract No. DE-AC02-83CH-10093

This document summarizes the results of an extensive investigation into the physical factors surrounding noise complaints related to the DOE/NASA MOD-l wind turbine operating near Boone, North Carolina.

The work reported here presents the results of investigative efforts of staff members of the:

Solar Energy Research Institute (SERI) and its subcontractors:
the Fluid Dynamics Research Laboratory of the Massachusetts Institute of Technology (MIT),
the Departments of Meteorology and Mechanical Engineering of Pennsylvania State University,
and the Departments of Mechanical and Aerospace Engineering of the University of Colorado-Boulder.

Complaints of noise emanating from the operating MOD-l were confined to about a dozen families living within a 3-km radius of the turbine, about half of whom were annoyed frequently

( 3-km equals 9842 feet )

These families represented a very small fraction of the total households within this radial distance, a number exceeding 1000 homes, including most of the town of Boone itself.

In summary, the complaints centered on the following perceptions: ..

The annoyance was described as an intermittent "thumping" sound accompanied by vibrations. ..
A "feeling" or "presence" was described, felt rather than heard, accompanied by sensations of uneasiness and personal disturbance. ..
The "sounds" were louder and more annoying inside the affected homes. ..
Some rattling of loose objects occurred. In one or cause loose nuisance. two instances, dust to fall structural vibrations were great enough to from high ceilings

Truncated see link

http://docs.wind-watch.org/Kelley-et-al_-Noise-MOD-1-wind-turbine-source-impact-control.pdf

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Today the Town of Falmouth has two 1650 Kilowatt wind turbines or what are called 1.65 Megawatt turbines.
Town of Falmouth owns two of them.
The federal government has known since the 1980s the frequencies produced by wind turbines

Massachusetts state agencies today refer to the wind turbine noise as two distinct types of noise "regulatory" and "human annyonace" aka low frequency infra-sound.