摘要
Based on theory proposed in the preceding paper [3]. the numerical calculation and eVerimental study of sound absorption by pseudostochastic diffusors are carried out in this paper. Average specific acoustic impedance of the whole structure is obtained. The nonlinear coupling specific resistance is emphatically analysed. The experiments of measuring normal absorption coefficient of the structure are made. The tested results agree with predicated data.
Based on theory proposed in the preceding paper [3]. the numerical calculation and eVerimental study of sound absorption by pseudostochastic diffusors are carried out in this paper. Average specific acoustic impedance of the whole structure is obtained. The nonlinear coupling specific resistance is emphatically analysed. The experiments of measuring normal absorption coefficient of the structure are made. The tested results agree with predicated data.
