FIELD: sound-producing devices. SUBSTANCE: method involves forming parametric emitter aerial with elastic wave concurrently transmitted. Environment parameters are modulated in time preferably in the nearest zone adjacent to the radiator unit. To do it, one more signal of different physical nature is introduced into the nearest zone beside one of the elastic wave, for instance, electromagnetic wave and hydrodynamic liquid flow. The signal is subjected to time-and frequency modulation. EFFECT: increased nonlinearity coefficients in the working medium. 6 cl, 3 dwg
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