Current research in electroacoustics tends to determine the global transfer function between an initial electrical signal and the acoustic pressure transmitted to the ear. Because electrodynamic transducers radiate in a large frequency range, lumped parameter models, such as Thiele & Small, are not sufficient to provide a realistic simulation of the vibroacoustical behavior of the system. This study proposes the use of modal equations to predict, through the use of Rayleigh's integral, the sound field in free space radiated by a diaphragm, modeled by a thin shallow sperical shell.
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