Characteristics of the flanking transmission due to the difference of incidence and radiation area are experimentally investigated. In this paper, the results of the sound insulation and vibration characteristics measurement are introduced in case of the various incident and radiation area. The result shows that the influence to sound insulation deterioration of the incidence and radiation area. Furthermore, the deterioration by the increment of radiation area was frequency dependent.
This indicates the flanking pass must be related with the vibration transmission characteristics of the facade and interior wall.
