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a traditional channel-based approach because the audience is aware of the amplification through the speakers. Using objects means the audience shouldn’t notice the technology.” Sound engineers do this by using prediction software to place a sound object in a virtual space, which also maps the loudspeaker system designed for that space. Knowing where the loudspeakers are located in an XY grid, and knowing the relationship between those speakers and each sound object, means software can work out how the acoustic wavefront would propagate. “We can calculate the time and level relationships between an object and all the speakers in the system, and the speaker system reproduces the acoustic wavefront at the correct time and level relationship,” explains Hockley. “From an audience perspective, you only hear

FULLY INTEGRATED More companies and installation designers are considering the visual impact of audio elements

31. APRIL 2023

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