Porous Absorber Calculator
Helmholtz Absorber Calculator
Membrane Absorber Calculator
Multi-layer Absorber Calculator
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Frequency (Hz)
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1
Absorption Coefficient
Absorption
Coefficient
Reflection
Coefficient
Impedance
(real)
Impedance
(imag)
Amend
Parameters
Global Parameters
Air temperature: 20°C
Air pressure: 101325 Pa
X Axis: Frequency
Range: 20Hz - 20000Hz
Scale: logarithmic
Resolution: medium
Angle of incidence: 0°
Porous model: Allard and Champoux (1992)
Helmholtz model: Ingard/Allard