Taking the "forest-valley" scene switching in classic live-action performances as an example, the sound effect systems of the two scenes differ significantly, and sound field reconstruction must be achieved through the physical position adjustment of audio equipment-where stage lighting lifting hoists play an indispensable regulatory role. In the "forest scene", to simulate the ethereal and translucent sense of birds chirping in the woods, 6 groups of high-fidelity speakers need to be accurately installed on the load-bearing trusses 8-10 meters above the stage. By virtue of the independent control function for single devices of the stage lighting lifting hoist, each speaker is adjusted one by one to the preset height and horizontal angle, ensuring that the sound spreads from high altitude to form an "overhead surround sound field". Combined with sound effect processing equipment, it restores the layering and sense of distance of birds chirping, making the audience feel as if they are in a dense forest, listening to the lively chirps from the branches. At this point, the stable operation performance of the stage lighting lifting hoist is particularly critical-it can avoid resonance noise caused by the shaking of the speakers during lifting, thus ensuring the sound purity of the equipment after debugging.
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