Acoustic Characteristics Of A Loudspeaker
Obtained By Vibration And Acoustic Analyses
Author(s)
Jung Ho Kim, Jim Tai Kim, Jin O. Kim & Jin Ki Min
Abstract
The acoustic characteristics of a direct radiator type loudspeaker has been
studied in this paper. The natural modes of the speaker cone vibration analyzed
numerically by the finite element method have been verified by comparing
them with experimental results. The so-approved finite-element model has
been used to calculate the vibration response of the cone excited by the voice
coil. The vibration displacement of the speaker cone paper has been converted
into the vibration velocity and used as a boundary condition for the acoustic
analysis. The frequency characteristics, directivity, and sound pressure
distribution of the loudspeaker have been calculated by the boundary element
method. The nu
Keywords
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