The Morning Line is a large scale outdoor sculpture with a multi-dimensional sound system consisting of 41 small weatherproof main speakers and 12 subs, configured in 6 surround arrays, or "rooms", distributed throughout the sculpture. The irregular nature of these arrays necessitated the use of VBAP panning on the sculpture but when preparing works to be played on it, Ambisonics is more often used. This paper describes the hardware and software developed for the sculpture, theories of spatial audio perception which prompted the design approach, as well as the production facilities provided for the composers whose works are performed on The Morning Line.
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