Resource Documents by Sejer Pedersen, Christian
Møller, Henrik; Pedersen, Steffen; Kloster Staunstsrup, Jan; and Sejer Pedersen, Christian
Assessment of low-frequency noise from wind turbines in Maastricht
Introduction Sound and noise can be characterized by their frequency. The range from 20 Hz to 20 kHz (20 cycles per second to 20,000 cycles per second) is usually called the normal hearing range or the audio frequency range. Sound with frequencies above 20 kHz is denoted ultrasound and cannot be heard by humans. Sound with frequencies below 20 Hz is denoted infrasound. It is usually understood that also infrasound cannot be heard, but this is wrong. Infrasound is audible . . . Complete article »
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