Global Parameters

Air temperature: 22°C
Air pressure: 101325 Pa

X Axis: Frequency
Range: 20Hz - 20000Hz
Scale: logarithmic
Resolution: medium

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

Absorber Parameters

• Absorber 1 (Sonorock (2.5cm))
25mm Porous Absorbent, 6000 Pa.s/m2
Rigid backing
• Absorber 2 (Basotect G (2.5cm))
25mm Porous Absorbent, 12400 Pa.s/m2
Rigid backing
• Absorber 3 (Teppich 20mm (4.5mm Schaum))
4.5mm Porous Absorbent, 150000 Pa.s/m2
20mm Porous Absorbent, 120000 Pa.s/m2
Rigid backing
• Absorber 4 (Teppich 16mm (4.5mm Schaum))
4.5mm Porous Absorbent, 150000 Pa.s/m2
16mm Porous Absorbent, 120000 Pa.s/m2
Rigid backing