Conference paper Open Access

COMPOSITE MATERIAL SOUND ABSORPTION DETERMINATION BY MEANS OF STANDING WAVE TUBE MEASUREMENT

Daniel Urbán; Dominik Hátáš; Andrea Biskupičová; Miriam Ledererová

The sound absorption material property knowledge, opens new application possibilities of material. 
Absorptive  materials  can  be  used  for  sound  pressure  level  attenuation  in  interior  spaces  (usually 
acoustic diffuse field), as well as exterior spaces (free acoustic field). The presented work is focused 
on  sound  absorption  coefficient  measurement techniques.  In  respect to this  purpose,  the  standing 
wave impedance tube measurement device was assembled. Reference samples from composite based 
EVA  (ethylene  vinyl  acetate)  material  were  created.  Samples  were  used  for  interlaboratory 
comparative sound absorption measurement test. Measurement results comparison is presented here. 

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