Lichtenhan, Salt: Amplitude Modulation of Audible Sounds by Non-audible Sounds

Amplitude modulation of audible sounds by non-audible sounds: Understanding the effects of wind turbine noise

Jeffery Lichtenhan and Alec Salt, International Congress on Acoustics, Montreal June 2013

Our research has suggested a number of mechanisms by which low-frequency noise could bother individuals living near wind turbines: causing endolymphatic hydrops, exciting subconscious pathways, and amplitude modulation of audible sounds. Here we focus on the latter mechanism, amplitude modulation.….

Our results suggest that that infrasound generated by wind turbines may cause amplitude modulation of audible sounds, which is often the basis for complaints from those living near wind turbines.

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