There are several synonyms for the phrase "noise control." These include soundproofing, acoustic insulation, noise reduction, and quieting. Soundproofing refers to the installation of materials that prevent sound from entering or leaving a space. Acoustic insulation is similar but focuses on reducing sound transmission through walls, floors, and ceilings. Noise reduction refers to the overall reduction of sound levels, often achieved through the use of noise-cancelling devices or by implementing design changes in buildings. Quieting refers to the suppression of noisy elements within a space, such as machinery or HVAC systems. Regardless of the specific term used, noise control is an important aspect of creating a comfortable and productive environment.