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Global Parameters
Air temperature: 20°C
Air pressure: 101325 Pa X Axis: Frequency Range: 10Hz - 20000Hz Scale: logarithmic Resolution: medium Angle of incidence: 0° Porous model: Allard and Champoux (1992) Helmholtz model: Ingard/Allard |
Absorber Parameters
• Absorber 1 (Rockwool)
400mm Porous Absorbent, 7500 Pa.s/m2 Rigid backing • Absorber 2 (Rockwool with 10kg membrane) Limp Membrane, 10 Kg/m2 400mm Porous Absorbent, 7500 Pa.s/m2 Rigid backing • Absorber 3 (Rockwool with membrane) Limp Membrane, 0.1 Kg/m2 400mm Porous Absorbent, 7500 Pa.s/m2 Rigid backing |
Absorber 2: Peak absorption at 26.1Hz. Damping=2.46 (high)
Absorber 3: Peak absorption at 439Hz. Damping=1.31 (medium)
Absorber 3: Peak absorption at 439Hz. Damping=1.31 (medium)