Global Parameters

Air temperature: 20°C
Air pressure: 101325 Pa

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

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

Absorber Parameters

• Absorber 1 (10.75" fluffy x 1" OC Tube)
25.4mm Porous Absorbent, 20000 Pa.s/m2
273mm Porous Absorbent, 8000 Pa.s/m2
25.4mm Porous Absorbent, 20000 Pa.s/m2
Rigid backing
• Absorber 2 (10.75" fluffy no tube)
273mm Porous Absorbent, 8000 Pa.s/m2
Rigid backing
• Absorber 3 (10.75" fluffy x 1" OC Tube (4mil)
Limp Membrane, 0.14083 Kg/m2
25.4mm Porous Absorbent, 20000 Pa.s/m2
273mm Porous Absorbent, 8000 Pa.s/m2
25.4mm Porous Absorbent, 20000 Pa.s/m2
Rigid backing
• Absorber 4 (10.75" fluffy no tube (4mil))
Limp Membrane, 0.14083 Kg/m2
273mm Porous Absorbent, 8000 Pa.s/m2
Rigid backing