This applet allows you to design your own object and render the sounds it
makes under various interactions like hitting, plucking, and scraping. As
shown in Sections 15.9 and 15.10 the sound made by an object depends on
the physical properties of the object. The simulation demonstrates that
the kind of excitation (hitting, plucking, etc.) also plays a role in determining
the resonance mode of the object. The applet allows you also to investigate
properties of some additional shapes.