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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 |
Absorber 1: Peak absorption at 158Hz. Damping=3.22 (high)
Absorber 3: Peak absorption at 109Hz. Damping=1.12 (medium)
Absorber 3: Peak absorption at 109Hz. Damping=1.12 (medium)