Kuntz Acoustical Engineering

General Considerations Noise control may be accomplished through a variety of methods, which depend on the needs and limitations of the environment.
Passive Controls
Passive controls include: dissipative absorption materials (porous materials) and structures (isolators, vibration damping), reactive devices (acoustic resonators) and structures (mechanical resonators), and barriers (walls, enclosures).
Active Controls Active controls include the computerized control of noise and vibration levels.
Duct Acoustics
Duct acoustic treatments include both active and passive methods. Passive methods are commonly used for attenuation in the mid-frequency range. Active methods are used for higher attenuations at lower frequencies. Combined methods may be used for broad frequency, large attenuation needs.

KAE Home Acoustical Analysis Publications Personnel