In order to make a comfortable living environment, we are observing the noise problem that the radiated sound from a structure. Sound is generated from the structure by solid and air propagation. Driving sound and the sympathetic sound by vibration are emitted from the structure, and the radiated sound becomes the noise problem. In this paper, we used a vibration-acoustic interaction model of the speaker box. A loudspeaker and a shaker were used for the driving sound source. And, the TSP signal was emitted from the driving source. The acoustic holography in the acoustic field around the speaker box was measured. The driving sound and the sympathetic sound by vibration were separated using the coherent function.
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