Study on the Acoustic Characteristics of Sound Proofing Ventilation Unit

The traffic noise of developing countries in Southeast Asia were characterized by relatively high noise exposure levels. On the other hand, casement windows are widely used in those countries. However, these windows prove to be impermissible to noise level because the window ventilating slits serve as a direct pathway to allow traffic noise to enter the home. Presented here is a concept for manufacturing windows which is capable of ventilating, regulating sunlight and reducing traffic noise inside the homes. New model of sound proofing unit SPV13 consists of a partition panel and perforated sound absorbing material is experimentally considered in the present work.