You can get some QuickTime movies of Doppler effect here. These movies are calculated with Mathematica on Macintosh. Click the following pictures.
QuickTime Movie(hqx file 86k) A sound sorce is moving at one third times speed of sound.
Quick Time Movie(202k) hqxfile(82k) The same condition as the preceding. But it was represented in 3-D.
QuickTime Movie(147k) hqxfile(82k) A sound sorce is moving at the speed of sound. You can see a shock wave.
QuickTime Movie(147k) hqxfile(82k) A sound sorce is moving at 1.2 times speed of sound. You can see a V shape shock wave.
Go to Nori's personal computer physics page