Figure 5
From: Controlling sound radiation through an opening with secondary loudspeakers along its boundaries
The sound pressure level in y-z and x-z plane. (a) Without virtual sound barrier, x = 0.03 m plane. (b) With virtual sound barrier, x = 0.03 m plane. (c) Without virtual sound barrier, y = 0.03 m plane. (d) With virtual sound barrier, y = 0.03 m plane.
