Захист акустичної інформації методом протифазного придушення

Abstract

Application of the method of active protection of speech information that leads to a decrease in signal / noise ratio at the border areas controlled by suppressing signal that contains confidential information. The results of experimental studies of suppression of acoustic information by generating an antipodal acoustic signal are presented. The causes of excitation of the system of active suppression of the signal are analyzed and ways of increasing the efficiency of their operation are proposed.