For over a century, people have been listening to sonic events stored or broadcast as mechanical or electronic representations of sound realized through loudspeakers. Often, the listening space does not contribute to the desired listening experience due to the room acting in essence as a filter and reverberator due to its architectural design. Also, coloration due to the interaction of acoustic signals from spaced loudspeakers can exist. But at the same time, these same effects can be used creatively to enhance the listeners experience and create a more natural sense of localization, depth, and space when working with point sound sources that have electronically generated multi-directional radiation characteristics. The authors have developed a method of 3D sound reproduction based on a multi-channel coincident speaker array and the use of what we like to call in-air sound synthesis techniques. This approach to sound reproduction offers numerous technical benefits and unique opportunities for sonic artistic expression that will be discussed in this paper.
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