An overview of acoustic impedance measurement techniques and future prospects

N Hiremath, V Kumar, N Motahari, D Shukla - Metrology, 2021 - mdpi.com
In order to progress in the area of aeroacoustics, experimental measurements are
necessary. Not only are they required for engineering applications in acoustics and noise …

Towards more reliable measurements of sound absorption coefficient in reverberation rooms: An Inter-Laboratory Test

C Scrosati, F Martellotta, F Pompoli, A Schiavi, A Prato… - Applied Acoustics, 2020 - Elsevier
The internationally recognized procedure ISO 354: 2003 for measuring sound absorption
coefficients under diffuse field conditions is now under revision. The main reason for this …

In situ measurements of the oblique incidence sound absorption coefficient for finite sized absorbers

M Ottink, J Brunskog, CH Jeong… - The Journal of the …, 2016 - pubs.aip.org
Absorption coefficients are mostly measured in reverberation rooms or with impedance
tubes. Since these methods are only suitable for measuring the random incidence and the …

Influence of the acoustic structures placement on the measurements in a reverberation room

Y Wang, X Li, J Zhao, X Li, L Zhu… - INTER-NOISE and …, 2021 - ingentaconnect.com
Absorption coefficient is a signification index of acoustic structures, which is useful to
determine acoustic treatment with a good sound-absorbing characteristic. To make the …

[PDF][PDF] Will the true absorption coefficient please stand up now

M Vercammen, M Lautenbach - Proceedings DAGA 2016, 2016 - peutz.nl
The reverberation room method is the widely used method for the determination of the
random incidence absorption coefficient of materials. It is standardized in ISO 354 [1] and …

Research on Influencing Factors of Sound Absorption Coefficient in Reverberation Chamber

Y Zhang, X Xie, D Mei, WB Shangguan - SAE International Journal of …, 2021 - sae.org
In the automotive industry, testing the sound absorption coefficient of acoustic materials
through reverberation chambers has been widely used. The advantage of this method is that …