SOURCE CONTROL

• This involves addressing the noise directly at its origin. Examples include using quieter machinery or equipment, implementing noise-reducing technologies, and enforcing regulations or guidelines to limit noise emissions.

TRANSMISSION CONTROL

• Controlling the transmission of noise involves measures to prevent the spread of sound from the source to other areas. This can include the use of barriers, enclosures, and soundproofing materials in walls, floors, and ceilings.

RECEPTION CONTROL

• Strategies to control noise at the receiver end aim to protect individuals or sensitive equipment from being adversely affected by noise. This may involve the use of personal protective equipment (such as earplugs or earmuffs) or relocating sensitive activities to quieter areas.

Common methods and technologies employed in noise control include:

SOUNDPROOFING MATERIALS
The use of materials with sound-absorbing or sound-blocking properties, such as acoustic panels, insulation, and specialized wall coverings, helps reduce the transmission of sound.

BARRIERS & ENCLOSURES
Physical barriers, such as walls, fences, or enclosures, can be strategically placed to block the direct path of sound waves and prevent them from reaching sensitive areas.

ACTIVE NOISE CONTROL (ANC)
This technology involves the use of electronic systems to produce sound waves that actively cancel out or reduce the effects of unwanted noise. ANC is often applied in headphones, vehicles, and industrial settings.

ENGINEERING CONTROLS
Modifying the design or layout of equipment or machinery to reduce noise emissions. This may involve adding mufflers, damping materials, or other modifications.

COMMUNITY NOISE REGULATIONS
Governments often establish noise regulations to limit noise levels in residential, commercial, and industrial areas. These regulations may set permissible noise levels during specific times or for certain activities.