Global Parameters

Air temperature: 20°C
Air pressure: 101325 Pa

X Axis: Frequency
Range: 120Hz - 2000Hz
Scale: logarithmic
Resolution: medium

Angle of incidence: 0°
Porous model: Allard and Champoux (1992)
Helmholtz model: Ingard/Allard

Absorber Parameters

• Absorber 1
50mm Porous Absorbent, 65000 Pa.s/m2
Rigid backing
• Absorber 2
50mm Porous Absorbent, 3500 Pa.s/m2
Rigid backing
• Absorber 3
50mm Porous Absorbent, 65000 Pa.s/m2
10000mm Air
Rigid backing
• Absorber 4
50mm Porous Absorbent, 3500 Pa.s/m2
10000mm Air
Rigid backing