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Academia Sinica acoustic impedance adaptive array processing amplitude amplitude transformer analysis approximately array processor attenuation auditory cortex axis BG wave calculated catenoidal caustic Chinese consonant duration constrained conditions corresponding cortical coupled vibrations detection probability directivity pattern discrete Rayleigh distribution Doppler effect effect evoked potential expression field filter finite amplitude FM-response foam formula frequency equation function given grazing angle impedance incident input Institute of Acoustics intensity interference JASA layer longitudinal measured melon method normal obtain output paper parameters phase piezoelectric ceramic pipe array plane Poisson distribution post-exposure augmentation power spectrum radiation patterns random range Rayleigh distribution recording points reflection coefficient resonant frequency respectively response reverberation level sediment shallow water shown in Fig signal signal-to-noise ratio Sinica slow fluctuation smooth-average sound insulation sound velocity sound waves speech sound standard surface threshold tion transducer ultrasonic underwater sound