Content Analysis: a good video and audio example of Prof. William Degraffenreid demonstrates

Photo Gallery

The Doppler Effect in Sound
Doppler Effect Demonstrations and Animations
Example of Doppler Shift using car horn
Fire Engine Siren Demonstrates The Doppler Effect
The Doppler Effect Demo
The Doppler Effect
Doppler Effect
The Doppler Effect: what does motion do to waves?
The Doppler effect- a mini demonstration
Doppler Effect
MCAT Physics: The Doppler Effect in 6 Minutes
Doppler effect demonstration in the Anechoic Chamber, California State University, Sacramento