robert bresson, and sound

about his use of sound in l'argent, the director thinks that "while music flattens a surface, makes it into an image," sound, on the contrary, "lends space, relief. it arrives and the screen deepens, thus bringing on the third dimension".* the idea is that one must never duplicate an image with a sound ("a sound must never come to the aid of an image, nor an image to the aid of a sound....the