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Wearable Microphone Jamming


DanieldH

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At high sound pressure levels ultrasounds can produce audible sounds when colliding with objects.

 

The transition between different mediums (air and a solid body) creates a non linear effect. For example, it is possible to beam an AM modulated towards a wall. The beam will be demodulated and the modulating signal will be heard like it originated from a spot on the wall.

 

https://en.wikipedia.org/wiki/Sound_from_ultrasound

 

I have seen it working, a friend was experimenting with this some time ago.

 

I guess it will provoke a similar phenomenon on the microphone diaphragm.

 

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