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The Analysis, Interaction, and Measurement of Loudspeaker Far-Field Polar Patterns

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We present a mathematical framework for the analysis, interaction, and measurement of loudspeaker far-field polar patterns using spherically weighted complex acoustic point sources. We show it is not necessary to know the "acoustic center'' in order to measure an accurate far-field polar pattern. We discuss a mathematical transform that makes this clear, and we show experimental evidence from careful measurements in an anechoic chamber.

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