Some people living near wind farms complain they are kept awake by a phenomenon known as aerodynamic modulation(AM), low frequency noise made as the blades swoosh through the night air.

• 有些住在风力发电厂附近的人抱怨，他们因为一种称为空气动力调变的现象，即轮叶的飕飕声划过夜空，产生低频噪音，以致无法入眠。