Introduction
Noise can have several negative impacts including serious damage to physical health, reduction in productivity and concentration and causes stress. In order to prevent these effects it is necessary to employ a number of practical noise reduction techniques. Here, the focus is on the commonly employed noise control techniques that are used to minimize the health risks from environmental noise.
1. The use of sound baffles and wall panels
Sound baffles and wall panels are often used to reduce sound transmission, by reflecting and absorbing sound waves. This is usually achieved by installing sound baffles that are made out of absorbent material, such as foam, and placing them strategically around the noise source. This can help to deaden the transmission of sound by absorbing and blocking the noise, while also providing a barrier to stop the sound waves from being reflected back into the environment.
2. Sound enclosures
Sound enclosures, such as booths and boxes, are also used to reduce noise levels in industrial and other noisy environments. These enclosures are typically constructed of materials that are highly soundproof, such as metal, soundboards and reinforced plastic, and they are designed to limit the amount of sound that penetrates into or out of the area. They can also be equipped with special features, such as ventilation and filtration systems, to further reduce the transmission of sound.
3. Acoustic insulation
Acoustic insulation can be used to reduce the level of airborne noise in a space. This type of insulation is typically made out of materials, such as foam or fibreglass, which are highly effective at absorbing and deadening sound waves. The installation of acoustic insulation can help to reduce reverberation and echoing in the area, helping to make it more comfortable by minimising the amount of noise that is present.
4. Sound masks
Sound masks, such as white noise machines, are also a useful tool for reducing noise levels. These devices produce a continuous low level sound, typically in a frequency that is difficult for humans to detect and distinguish from background noise. This sound masking can help to block out environmental noise and make a space more comfortable.
5. Soundproof walls and floors
Another effective noise reduction technique is the installation of soundproof walls and/or floors. These special barriers are designed to limit the transmission of sound both within a confined space and between different rooms, by blocking the sound waves. The construction of double and triple glazed walls, coupled with the installation of sound-proofing materials, is often used to insulate rooms from extraneous noise.
Conclusion
Employing noise control techniques, such as deploying sound baffles, enclosures, acoustic insulation, sound masks and soundproofing, can help to reduce the levels of noise in a environment and thus minimise the health risks associated with it. In addition, such measures can offer a degree of comfort by blocking out excessive levels of sound that may be disruptive to work or leisure activities.
