Sound insulation wall (two acoustic sourcesCreverse phase)
distribution of acoustic pressure animation cell size
50Hz 50Hz dx=dz=0.05[m]
100Hz 100Hz dx=dz=0.05[m]
200Hz 200Hz dx=dz=0.05[m]
white noise(50-200Hz) white noise(50-200Hz) dx=dz=0.04[m]
all (50-200Hz) all (50-200Hz)