I am not sure if I get your point. Sound so deep, that humans can’t here it, is below 20 Hz. So beeing huge helps to produce such low frequencies - bigger wind turbines produce more intense infrasound than smaller ones. Infrasound is also produced by wind blowing over the landscape and by waves on the beach.

The same argument is used by opponents of wind energy - Infrasound is having bad effects on their health. People do say that while living next to roads that are producing infrasound multiple times louder than wind turbines ever could.

It’s a nice argument if you need it.