Active real time sound control in a composite domain

It is proposed an active sound propagation control, which causes a decrease in the influence of sources located in the first of two subdomains of a compound domain on the field in the second and at the same time, the increase of the same number of times the influence of sources located in the second subdomain on the field in the first one.
It is important that the timely generation of the control action that supports this process, based on information received with observation over the process in the current time only in a small neighborhood of the boundary between subdomains.