Sound Attenuation of Lined Sheet-Metal Ducts

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Attenuation in ducts with 25 mm lining are indicated in the diagram below:

Attenuation in ducts with 50 mm lining are indicated in the diagram below:

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Related Topics

• Acoustics - Room acoustics, acoustic properties - decibel A, B and C - Noise Rating (NR) curves, sound transmission, sound pressure, sound intensity, attenuation and more ..
• Noise and Attenuation - Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems

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