The Microwave Auditory Effect, James C. Lin, IEEE Journal of Electromagnetics, RF and Microwaves in Medicine and Biology (Published March 2022)

Take-Home Messages: •This paper describes neurophysiological, psychophysical, and behavioral observations from laboratory studies involving human and animal subjects. •Absorption of a single microwave pulse impinging on the head may be perceived as an acoustic zip, click, or knocking sound. •A train of microwave pulses may be sensed as an audible buzz, chirp, or tune by humans. •Mechanistic studies show absorption of microwave pulses by soft tissues in the head launches a thermoelastic pressure wave that travels in the brain •Depending on the power of the impinging microwave pulses, the level of induced sound pressure could be considerably above the threshold of auditory perception. •The microwave auditory effects and associated pressure waves could potentially render damage to brain tissues to cause lethal or nonlethal injury.

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