Sound As A Defense Weapon: How Sound Frequency Can Cause Pain

What will happen if we use sound as a defense weapon? This article explains the ways in which sound can be an excellent self-defense tool.

Sound as a Defense Weapon: Using Sound Frequency to Survive What Is Sound?

Sound is all around us and much of it is comforting to humans – the pleasing sound of nice dinner music, a breeze wafting gently through the trees, gurgling water flowing in a brook, or the sounds of children playing – our world is alive with wonderful sound. For most, a sound is a welcome reality.

But when sound becomes noise, it increases stress and introduces emotional reactions in our lives and relationships. In fact, sound can distract, disorient, frighten, or injure. It is a pressure wave. As such it occurs at a certain frequency. These cycles have an amplitude (measured at the peaks) defining the power or intensity of the sound wave. Think of it like “loudness.”

Hearing Range

As shown in Table 1, we can’t hear some frequencies, although some animals can.

Sounds between 20 Hz and 20,000 Hz are considered within our normal threshold of hearing. Sounds below 20 Hz are called infrasonic or infrasound. Low-frequency infrasound at

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Originally posted on Survival Life