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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
25mm Perforated Panel, 20mm/140mm (1.60%) 300mm Porous Absorbent, 5000 Pa.s/m2 Rigid backing • Absorber 2 25mm Perforated Panel, 20mm/140mm (1.60%) 50mm Air 300mm Porous Absorbent, 5000 Pa.s/m2 Rigid backing |
Absorber 1: Peak absorption at 53.7Hz. Damping=6.78 (very high)
Absorber 2: Peak absorption at 52.0Hz. Damping=1.16 (medium)
Absorber 2: Peak absorption at 52.0Hz. Damping=1.16 (medium)