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Loudspeaker Coverage by Architectural Mapping

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A new technique uses rectangular to spherical coordinate transforms to generate an angular map, displaying auditorium seating in latitude and longitude angles as seen by the loudspeaker. Loudspeaker coverage and inverse-square losses can be instantly determined by this method. Loudspeaker radiation angular contours are presented for a number of commercial high frequency horns, as well as software for automatic computation of map point locations.

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AES - Audio Engineering Society