Return to www.asiproaudio.com   Print Page

4 WAYS TO QUIIET A NOISY MACHIINE


1. Treat the Room
Maximum noise reduction: 6-9 decibels (30-40% decrease in loudness).
Advantages: No inconvenience to workers.
Disadvantages: Almost all of the room must be treated regardless of the size of the noise source.
QFA Quilted Fiberglass Sound Absorption Products...or Polywrap
Baffles or Sanitary Baffles, depending upon specifics of application.
2. Treat the Wall Behind the Noise
Maximum noise reduction: 1-2 decibels if noise source sprays noise out into room, 4-6 decibels if noise is sprayed directly onto wall (such as noisy vent on the back of a machine).
Advantages: No inconvenience to workers.
How much QFA? Treat the wall behind the machine with about twice the square footage of the shadow of the machine on the wall.
3. Build a Barrier or Partial Enclosure
Maximum noise reduction: 6-15 decibels.
Advantages: Very good noise reduction.
Concerns: May have to incorporate view windows for visibility and/or sliding panels for access.
What Size? At a minimum, 8 high. Typically they should be double the height of the noise source.
BSC or BBC sound absorption/noise barrier composites.
4. Build a Complete Enclosure
Noise reduction: Up to 20-30 decibels.
Advantages: maximum noise reduction.
Concerns: May have to incorporate view windows for visibility and/or sliding panels for access as well as ventilation baffle(s) for air flow.
BSC or BBC sound absorption/noise barrier composites.