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Figure 8
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Absorption coefficient α and reproduction error ϵ (a), normalized surface impedance zs (b), for the configuration shown in Figure 1 for three incidence angles with a = 105 cm, b = 40 cm, θ = 45°, λ = 10−7, d = 2 cm, za = 0.5 cm. Vertical dotted lines symbolise the estimated HF limit. TMT stands for Two-Microphone Technique.
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