Global Parameters

Air temperature: 20°C
Air pressure: 101325 Pa

X Axis: Frequency
Range: 20Hz - 20000Hz
Scale: logarithmic
Resolution: medium

Angle of incidence: random
Porous model: Allard and Champoux (1992)
Helmholtz model: Ingard/Allard

Absorber Parameters

• Absorber 1 (Broadband 16kPa (20cm, 10cm air))
200mm Porous Absorbent, 16000 Pa.s/m2
100mm Air
Rigid backing
• Absorber 2 (Broadband 16kPa (10cm, 10cm air))
100mm Porous Absorbent, 16000 Pa.s/m2
100mm Air
Rigid backing
• Absorber 3 (Broadband 7kPa (20cm, 10cm air))
200mm Porous Absorbent, 7000 Pa.s/m2
100mm Air
Rigid backing
• Absorber 4 (Broadband 7kPa (10cm, 10cm air))
100mm Porous Absorbent, 7000 Pa.s/m2
100mm Air
Rigid backing