Monday, April 22, 2013

Acoustics And Noise Control - Why It's So Important?

By Jerry Ford


When it comes to your building or project, it is important to be aware of noise control standards and potential noise pollution issues. What do you need to keep in mind when it comes to sound attenuation for your project or building? We've outlined a few key points below

Noise Control, what are the standards?

High noise levels can affect our health, so every type of business needs to comply with the National Standard for Occupational Noise. According to the Standard, 85 dBA is the maximum daily level of sound allowed in workplaces or public centres. To put this into context, a dishwasher typically produces 60 dBA, a jackhammer produces 96 dBA, and 120 to 130 dBA is considered to be "painfully loud". Noise is produced by machinery and equipment including air conditioning plants, large refrigeration units, generators, compressors, pumps and gears, and a specialized structure is required to keep their noise levels down below the legal limit.

Best solution for noise control?

An acoustic enclosure that is properly designed is really the ideal solution for keeping noise under the legal limit.

Providing noise attenuation AND airflow, acoustic enclosures, including acoustic doors and acoustic louvres, significantly reduce the level of sound that is emitted. For the ultimate noise attenuation, your acoustic enclosure should produce a high insertion loss and a low-pressure drop.

However, an acoustic enclosure that produces a high insertion loss for controlling a low-pitched sound may not be as effective for a high-pitched sound.

Considerationswhen it comes to acoustic enclosures?

Depending on your industry and location, there are a number of points to be considered when it comes to choosing your acoustic enclosure/acoustic louver system:

1.Structural needs, 2. Security, 3.Climate change with the seasons, 4.Architectural style and aesthetics, 5. Restricting water entry, 6.The optimum natural light needed, 7.Airflow efficiency.

However there is always an acoustic enclosure to suit your project's requirements.




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