Automotive plants and testing centres deal with multiple noise sources at the same time: engines, compressors, test rigs, HVAC systems, production machinery, material handling and vehicle movement. In EV and NVH-focused environments, uncontrolled reflections and background noise can affect testing quality, operator comfort and communication on the shop floor. A site-specific acoustic plan helps create more stable test conditions, reduce unwanted noise spread and improve the overall working environment.