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Academia Sinica acoustic field active noise control adaptive filtering amplitude analysis attenuation average beam pattern beamformer Beijing borehole boundary point method calculated CFPI Chinese Journal coefficient concert halls contact area convergence correlation denotes density detection direction distribution DVAs effect equation estimation experiment ferrocement focused frequency band frequency domain function FXLMS algorithm hydrophone IEEE Institute of Acoustics inversion Journal of Acoustics keyword Lamb wave matrix measured multiresolution Nanjing University nodes normal modes obtained output PACS numbers parameters phase velocity phased array plate propagation prosodic pulse QLLSAW reconstructed speech reflection respectively rough surface sample scattering secondary panels sensor shown in Fig simulation results solution sound field sound power source boundary point specimen spectrum surface mobility syllable TEOAEs theoretical thermoacoustic towed line array transducer transverse wave ultrasonic ultrasound vibration VSBPM WANG wave field waveforms wavenumber weight vector ZHANG