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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
Limp Membrane, 0.1 Kg/m2 444mm Porous Absorbent, 5555 Pa.s/m2 Rigid backing • Absorber 2 Limp Membrane, 0.2 Kg/m2 444mm Porous Absorbent, 5555 Pa.s/m2 Rigid backing • Absorber 3 Limp Membrane, 0.4 Kg/m2 444mm Porous Absorbent, 5555 Pa.s/m2 Rigid backing • Absorber 4 Limp Membrane, 0.8 Kg/m2 444mm Porous Absorbent, 5555 Pa.s/m2 Rigid backing |
Absorber 1: Peak absorption at 389Hz. Damping=1.26 (medium)
Absorber 2: Peak absorption at 262Hz. Damping=1.40 (high)
Absorber 2: Peak absorption at 262Hz. Damping=1.40 (high)