To run this demo you will need a Java-enabled browser, a sound-enabled computer (preferably with decent low-frequency response), and you may find it helps to exit any unused applications in background.

Sadly, the sound quality on the sound clips on this demonstration isn't as high as we would have liked. We had to sacrifice fidelity for immediacy of comparison. However, the fully-fledged CD-quality touch-screen version of the demonstration may be on display at an air show near you...