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 (12mm panel 20mm holes 40mm spaci)
12mm Perforated Panel, 20mm/40mm (19.63%)
50mm Porous Absorbent, 23600 Pa.s/m2
Rigid backing