Good idea, Pierre. I think all wind energy devices should have loudspeakers so they can play heavy metal music whenever the wind blows. That would cover up blade noise. The neighbors would then be happy.
Only thing is, what if every turbine was playing a different song, all at the same time?
By the way, blade noise is one more overhyped aspect, often touted by wind energy newbies with nothing else to say about wind energy than mundane half-truths and irrelevant nothingness. Like Dabiri using the excuse of “biomimicry” to rationalize one more round of “research” promoting vertical-axis turbines.
It didn’t matter that anyone wanting to place smaller wind turbines between the larger ones in windfarms would simply leave the smaller ones in place when repowering with larger turbines, or use horizontal-axis turbines anyway, the “focus” was subtly changed from actual energy production to "biomimicry(!!!) Wheeee!
Yesterday as I was walking through a building here in the early morning, I noticed some flickering from the sunlight passing through a wind turbine rotor, then through the windows, into a room. It made me think of all the “news” stories about children susceptible to seizures, having those seizures triggered by wind turbine shadow flickering, making the rounds maybe 10 or 15 years ago. Once again, wind energy discussions reduced to whatever bumper-sticker-level concept might sound “newsworthy” and understandable by the average person, who lacks the knowledge to discuss any real, relevant aspects of wind turbines, such as how the airfoils operate, etc.