okay I watched the video and listened to the sounds of the wind turbine in the video it would be like living next to a rail road track....
Problem is, most home recording devices aren't really desinged to accurately record audio. Yea, they do a real nice job of picking up sounds at a party, or the kids playing in the back yard, but there's really no relevance to what it records.
Only true testing equipment can truly tell what decible level, etc. the things produce.