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(35)¡¡FEM simulation of radiation characteristics for sound tube with lips protrusion
¡¡¡¡¡¡¡¡¡¡Hokkaido workshop on speech production,2-3,pp.26-27,1998-8.
¡¡The acoustic characteristics for acoustic tubes with the protrusions at the radiation end are computed by FEM simulation. Two different shapes in the protrusions, a symmetrical and an asymmetrical shape with respect to the vertical, are investigated. Frequency characteristics of the radiation impedance are computed from simulation results. The simulation results show that the results of FEM simulation show good agreement with our measurement results. The proposed 3-D radiational model is useful for a human speech analysis of acoustic characteristics.
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