Optimization On The Use Of A Home-Made Impedance Tube To Measure Sound Absorption Coefficient

Mohd Zulfadzli, Zulkifili (2011) Optimization On The Use Of A Home-Made Impedance Tube To Measure Sound Absorption Coefficient. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In Malaysia, an issue with the noise is very severe and should be solved . Acoustic material are widely used to reduce noise. Example for acoustic material is glass wool, carpet and anechoic termination box. Micro-perforated panel also analyzed for this project. Micro-perforated panel is a new absorber for next generation and have a good potential to commercialized. To prove their potential, need to validate with theoretical. There are two methods to measure sound absorption of an acoustic material, namely impedance tube and reverberation chamber. Reverberation chamber method requires a special room therefore need area and hence high cost compare with the impedance tube method. This project is aimed of optimizing tube to measure sound absorption of sound use of a home-made. Several material are used to obtain measurement data and are analyzed. Several limitation of the hand-made impedance tube is also discussed

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