Soundings (1978) - Gary Hill

Basically Gary hill photographed a speaker. He recorded his voice coming through the speaker, and then proceeded to do various things to the speaker to alter the sound. Punching holes in it, pouring water on it, moving it, and physically altering it, thus illustrating the relationship between sound and image and vice versa. The result is somewhat interesting, but no more so than a guitar player getting a new effect pedal and seeing what new sounds he can make from it.