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2-dimensional audio phase measurements

Certain audiophiles and audio engineering sources state that one measure of the fidelity of a sound source is its ability to accurately reproduce the characteristics of the waveform of the initially recorded source. As such, a low cost, straightforward means of measuring and characterizing the shape of a sound source's wavefront is desired. A simple means of performing this characterization via phase difference measurements is explored. This paper outlines the design of a 2-D audio phase measurement system.