Most people find this website because they are searching for the source of an unusual low frequency sound. The sound is called the Worldwide Hum, The classic description is that it sounds like there is a truck idling outside your home. For some people, it is a deep and distant droning bass tone. Some people perceive the sound as a rumbling noise. The sound is louder indoors than outdoors, and louder late at night than during the afternoon. People who can hear the Hum are very often in their 40s or older. In the more serious cases, the Hum can affect quality of life; in a number of documented cases, the torment of the noise can be life-altering. To date, more than 4000 people have entered their locations and data.
This website aims to document for research purposes the locations and self-reported data on this phenomenon. Moreover, we are fundraising to conduct some critical experiments that will point to the source of the Hum. Please look over this first if you are not sure if you are hearing the Hum. This is a scientific investigation, and not a place for wild speculation or pseudoscience.
Dr. MacPherson can be reached at firstname.lastname@example.org.