A microphone is placed in the blind spot of a wearable jammer. If the... | Download Scientific Diagram
Speech jammer among 2012 Ig Nobel winners
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Speech Jammer | Games | Download Youth Ministry
This is called a speech jammer. It inhibits most people's ability of talking by recording their voice and playing it back to them with a delay of about 0.1 seconds. This effect
Speech-jammer gun silences critics | The Courier Mail