PT Journal
AU Gumanova, V
   Dzunova, L
   Sobotova, L
   Kralikova, R
TI Impedance Tube as a Tool for Evaluating Acoustic Noise Descriptors - The Experimental Measurement of Acoustic Parameters
SO Acta Mechanica Slovaca
PY 2020
BP 56
EP 64
VL 24
IS 2
DI 10.21496/ams.2020.010
DE impedance tube; acoustic descriptors; sound absorption; transmission loss.
AB Against the background of severe problems related to environmental noise, there has been a significant increase in the demand for its controlling. It has led to an increase in research efforts to develop the correct ways of measuring acoustic descriptors with the closely related research of soundproof and highly sound absorptive building materials. The sound insulation capacity of a barrier is indicated by two acoustic parameters - sound absorption and transmission loss. The contribution describes the principle, methods, and process of measurement of acoustics parameters using an impedance tube, explains the notion of sound absorption and transmission loss, and demonstrates this knowledge in the experimental measurement of acoustic parameters of selected materials (textiles from the automobile, polyurethane foam and absorbent cotton).
ER