20% Absorptionskoeffizient 100% 80% 60% 40% HiLo in 100 mm HiLo in 50 mm 20% HiLo in 30 mm 0% 125 160 200 250 315 400 500 630 800 1000 1250 1600 2000 2500 3150 4000 5000 6300 Hz
