A new theory for stereophonic sound is presented as background for a loudspeaker currently under development. The theory uses image modeling to visualize all sound fields present in the live performance: direct, early reflected, and reverberant. The reproduced sound will be most like the original when the image model of the reproduction soundfield matches that of the live sound. The model enhances understanding of perception of the spatial qualities of reproduced sound; is a basis for loudspeaker design, positioning, and acoustical requirements of the room; and extends to techniques for the original recording.
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