Global Parameters

Air temperature: 28°C
Air pressure: 101325 Pa

X Axis: Frequency
Range: 35Hz - 300Hz
Scale: logarithmic
Resolution: medium

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

Absorber Parameters

• Absorber 1
300mm Porous Absorbent, 3000 Pa.s/m2
100mm Air
Rigid backing
• Absorber 2
200mm Porous Absorbent, 4000 Pa.s/m2
200mm Air
Rigid backing
• Absorber 3
400mm Porous Absorbent, 2000 Pa.s/m2
Rigid backing
• Absorber 4
200mm Porous Absorbent, 5000 Pa.s/m2
200mm Air
Rigid backing