Noise controls can be implemented at which of the following locations?

The correct answer is associated with the principle of noise control that emphasizes the three main locations where interventions can be made: at the source of the noise, along the path it travels, and at the receiver's location.

Focusing on the source involves implementing measures that reduce the noise before it even begins to propagate, such as using quieter machinery or modifying equipment. Addressing the path means managing how sound travels from the source to the receiver, which can include adding barriers, using acoustic treatments, or employing absorption materials. Finally, acting at the receiver involves strategies that protect individuals from noise exposure, such as providing hearing protection devices or designing spaces that minimize noise intrusion.

This structured approach is essential in occupational health and safety to ensure effective noise management and protect hearing health, making it a foundational concept in audiology and sound management practices.

The other options, while they contain relevant terms, do not accurately encompass the primary locations where noise controls can be applied in a meaningful way. They focus on characteristics or broader aspects of sound rather than the specific points of intervention that maximize noise reduction strategies.