What type of control is primarily aimed at reducing noise at the source?

The focus of engineering controls in the context of noise reduction is to address and mitigate the source of the noise directly. This often involves modifying equipment, tools, or the environment to minimize the generation of sound. Examples of engineering controls include installing noise-dampening materials, modifying machinery to operate more quietly, or repositioning equipment to reduce noise transmission. By targeting the source of the noise, engineering controls are typically the most effective approach to manage and reduce noise exposure in a workplace or clinical setting, promoting a healthier auditory environment.

In contrast, administrative controls involve changes in work practices and schedules to limit noise exposure time, isolation refers to creating barriers to block sound transmission, and personal controls rely on individual protective equipment, such as earplugs or earmuffs, to protect against noise. While all of these strategies have their place in an overall noise management program, engineering controls specifically focus on eliminating or reducing noise at the source, making them highly effective for achieving long-term noise reduction.