The psychoacoustic effect of infrasonic, sonic and ultrasonic frequencies within non-lethal military warfare techniques.

Exploring the use of audio to influence humans physically and psychologically as a means of non-lethal warfare methods throughout both the 20th and the 21st century.

PLEASE NOTE: You can use this for any use or publication freely, but please credit myself Ryan Littlefield and link to http://Littlefield.co. This is also officially published by University of Portsmouth. Please provide the proper credit for this work.

Infrasonic Frequencies

The term ‘infrasound’ defines itself as the inaudible frequency range below the human bandwidth of around 20Hz. When discussing infrasound, it’s often associated with acts of

nature, sources such as the Fuego volcano in Guatemala emitted 120 decibels of infrasonic sound ranging around 10Hz (Georgia State University, no date). It is with occurrences like this that calls for a large amount of infrasonic monitoring to counter natural disaster detection. Beyond the use of infrasound detection, this frequency range, of which is inaudible to us, has been researched throughout the decades to investigate its effects on the human body…