Deterministic and statistical characterization of rigid frame porous materials from impedance tube measurements

M Niskanen, JP Groby, A Duclos, O Dazel… - The Journal of the …, 2017 - pubs.aip.org
A method to characterize macroscopically homogeneous rigid frame porous media from
impedance tube measurements by deterministic and statistical inversion is presented …

Influence of sound-absorbing material placement on room acoustical parameters

J Cucharero, T Hänninen, T Lokki - Acoustics, 2019 - mdpi.com
The reverberation of a room is often controlled by installing sound absorption panels to the
ceiling and on the walls. The reduced reverberation is particularly important in classrooms to …

Airflow resistance of acoustical fibrous materials: Measurements, calculations and applications

X Tang, X Yan - Journal of Industrial Textiles, 2020 - journals.sagepub.com
The acoustic performance of fibrous materials is mainly determined by its airflow resistance,
and it is a parameter of the resistance that the airflow meets through the materials. This …

Experimental assessment of the water content influence on thermo-acoustic performance of building insulation materials

F D'Alessandro, G Baldinelli, F Bianchi… - … and Building Materials, 2018 - Elsevier
Nowadays, a large number of materials for thermal and acoustic insulation are available on
the market. Therefore, some criteria need to be defined to support designers in the selection …

[HTML][HTML] Transport parameters for sound propagation in air saturated motionless porous materials: A review

E Di Giulio, C Perrot, R Dragonetti - International Journal of Heat and Fluid …, 2024 - Elsevier
Transport parameters play a key role in characterizing the thermo-viscous behaviour of the
microgeometry. Semi-phenomenological models provide valuable tools to establish a …

Additively manufactured spinodoid sound absorbers

B Wojciechowski, Y Xue, A Rabbani, JS Bolton… - Additive …, 2023 - Elsevier
Spinodoid structures, also called spinodoid metamaterials, are non-periodic cellular
structures that mimic spinodal topologies that are observed during diffusion-driven phase …

Ten questions concerning architectural acoustics

L Shtrepi, F Aletta, L Aspöck, A Astolfi, J Fels… - Building and …, 2024 - Elsevier
Building and room acoustics are relatively modern architectural and engineering disciplines.
Nevertheless, acoustics was also a concern for buildings in the past, eg, in theatres in …

Effect of the excitation signal type on the absorption coefficient measurement using the impedance tube

AC Corredor-Bedoya, B Acuña, AL Serpa, B Masiero - Applied Acoustics, 2021 - Elsevier
This work evaluates the effect of the excitation signal used when measuring the absorption
coefficient on an impedance tube. This paper aims to offer some guidance on the selection …

How reproducible are methods to measure the dynamic viscoelastic properties of poroelastic media?

P Bonfiglio, F Pompoli, KV Horoshenkov… - Journal of Sound and …, 2018 - Elsevier
There is a considerable number of research publications on the acoustical properties of
porous media with an elastic frame. A simple search through the Web of Science™(last …

Towards a sustainable approach for sound absorption assessment of building materials: Validation of small-scale reverberation room measurements

L Shtrepi, A Prato - Applied Acoustics, 2020 - Elsevier
The research and development phase of sound absorptive building materials by designers,
engineers, acoustic consultants and architects need tools for fast, inexpensive preliminary …