Sound diffraction by a rigid plane barrier:

• Fluid is air at ambiant conditions  (c=344 m/s)
• Frequency is 500 Hz
• Source (monopole) is at (x,y)=(-5,0.5), above a rigid ground at y=0.
• Barrier is 3 m high, and located at x=0
• Maximum pressure is blue, and minimum (negative) pressure is red, zero pressure is blue/green (the B&K color!)

The movie was created using LMS SysNoise and MATLAB (Registered Trademarks).