Machine Noise Level Reduction

Reducing machines noise levels

The noise levels from machines can be reduced with barriers or enclosures as indicated below:

sound level reduction of machines

EnclosureSound Pressure Level Reduction
(dBA)
1 No enclosure or barrier, machine alone 0
2 Machine on vibration isolators ≈ 2
3 Machine with barrier ≈ 5
4 Machine in a rigid and sealed enclosure ≈ 20 - 25
5 Machine in a rigid and sealed enclosure with sound absorption lining on inside walls - machine on vibration mounts ≈ 40 - 45

Related Topics

  • Acoustics - Room acoustics and acoustic properties - decibel A, B and C - Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity and sound attenuation

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