Wind farms are unique sound sources and exhibit special audible and inaudible characteristics that can be described as modulating sound or as a tonal complex. Wind farm compliance measures based on a specified noise number alone will fail to address problems with noise nuisance.

Hmm. Looks like wind farms ought to employ a sound designer. I'm not being flippant. Tune it right, it could be a plus, not a minus.

_{It is rightly acknowledged that people of faith have no monopoly of virtue - Queen Elizabeth II}