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

Absorber Parameters

• Absorber 1
18mm Slotted Panel, 30mm/300mm (10.00%)
150mm Porous Absorbent, 5000 Pa.s/m2
Rigid backing
• Absorber 2
Rigid backing
• Absorber 3
Limp Membrane, 1 Kg/m2
80mm Air
210mm Porous Absorbent, 12000 Pa.s/m2
Rigid backing
• Absorber 4
400mm Porous Absorbent, 3000 Pa.s/m2
Rigid backing