Low-frequency sound is sound with a frequency below 100 or 125 Hertz. The lower the frequency, the further the sound travels and also the louder the sound must be to hear it. Sound lower than 20 Hertz is in principle inaudible to a human, but can be felt. Through the tool Online Tone Generator you can hear for yourself what low-frequency sound could sound like in different sound frequencies.
Research: noise from wind turbines in Veenkoloniën remains within margins
