The Hum is a mysterious and untraceable sound that is heard in certain locations around the world by two to ten percent of the population.
The scientific paper entitled ‘The Hum: An Anomalous Sound Heard Around the World’ by DAVID DEMING discusses several hypotheses as possible sources of the Hum: Cellular telephone transmissions, LORAN, HAARP, and the TACAMO aircraft operated by the US Navy for the purpose of submarine communications.
Historically, the area that has been most affected by the Hum is the United Kingdom, where reports have been frequent since the early 1970s. In the United States, Hum reports date from the early 1990s, with the two most publicized locations being Taos, New Mexico (The Taos Hum), and Kokomo, Indiana (mysterious Kokomo Hum).
The source of this strange sound has never been located (but it is under investigation in Canada: The annoying Windsor Hum). The Hum does not appear to be a form of tinnitus and may not be an acoustic sound. More than just a noise, the Hum sound is also capable of manifesting as vibrations felt throughout the body and is often accompanied by a suite of physical symptoms that includes headaches, nausea, and pain in the ears.
Analysis of the largely anecdotal data that are available at the present time suggests that the most probable explanation for this high-pitched and metallic noises is that some people have the capability to interpret radio transmissions at certain wavelengths as sound. It is well established in the scientific literature that people can hear electromagnetic energy at certain frequencies and peak power levels. Previous studies have found that a subset of the population has an electromagnetic sensitivity that is significantly greater than the mean.
Read the whole scientific paper entitled ‘The Hum: An Anomalous Sound Heard Around the World’ here.