PORTABLE ACOUSTIC PANEL USING FABRIC AND FOAM AS SOUND ABSORBER

Abstract

Unpleasant noise problems can be a sound pollution. Absorption of sound is required to provide environmental comfort to the user.This study was conducted to determine materials such as acoustic foam and fabric thickness to absorb noise as well as solve the problem of fabrics waste that contributes to the problem of waste disposal .Sound waves are transferred to the acoustic foam,wheretheenergyislostduetothereflectiononthecharacteristicsofacoustic foam,sothereisnoecho.Acousticfoamhelpsabsorbsomeofthesoundenergyandsomecan stillpassthroughthesecondlayer(fabriclayer).Thesoftpropertiesofthefabriccanabsorb excesssoundthatpassesthroughtheacousticfoam.Soundwavesaredeflectedwhenpassing through a thick fabric,and causing the production of echoes thus reducing noise.The performance of" Portable Acoustic Panel Using Fabric and Foam as Sound Absorber is tested usingdecibelmetermethodandexperimentalmethod.Theexperimentwasconductedinan enclosedspacetoobtainaccuratedata.Thethicknesstestedon“PortableAcousticPanel UsingFabricandFoam asSoundAbsorber”is30mm whichhas48.63% averageefficiency comparedto10mm whichhasonly25.29%average efficiency.Moreover,the fabric is more effective(37.33%) than acoustic foam(17.83%) as a material of the panel.For the recommendation to the future researcher,were commend them to increase the dimension of the box and thickness according to the standard of wall panel.