Abstract
This study used the sound insulation test data of the acoustics
laboratory of ABRI. From the classification of test spicemen, the noise
reduction structure elements can be divided into noise windows, walls
and doors Due to complexity of structures , this research will use the
test data by the structure types of the structure. We will first use the
experiment test data for statics and Regression Analysis . Compared
with the experiment test result,we will use both theory of mass law and
stiffness-resonance-mass to predict the sound insulation of walls. From
the result , the predicted sound transmission loss value of
stiffness-resonance-mass theory that worked with test data will get
b e t t e r m a t c h r e s u l t t h a n m a s s l a w t h e o r y p r e d i c t e d .