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Advances in Architectural Acoustics
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Advances in Architectural Acoustics

A special issue of Buildings (ISSN 2075-5309). This special issue belongs to the section "Architectural Design, Urban Science, and Real Estate".

Deadline for manuscript submissions: closed (30 April 2022) | Viewed by 11323

Special Issue Editors

Prof. Dr. J. Ramis-Soriano

E-Mail Website
Guest Editor
Department of Physics, Systems Engineering and Signal Theory, University of Alicante, Ctra. San Vicente del Raspeig, 03080 Alicante, Spain
Interests: architectural acoustics; acoustics; transducers; ultrasonics; psychoacoustics; evaluation; acoustics and acoustic engineering; acoustic analysis; sound; vibration control
Special Issues, Collections and Topics in MDPI journals
Dr. Pedro Poveda-Martínez

E-Mail Website
Guest Editor
Department of Physics, Systems Engineering and Signal Theory, University of Alicante, Ctra. San Vicente del Raspeig, 03080 Alicante, Spain
Interests: acoustics; sound quality; noise and vibrations
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The present Special Issue aims to explore new trends in the field of architectural acoustics. Particular emphasis is placed on new developments related to the components for acoustic enhancement.

The purpose of this planned Issue of the magazine is to present the latest research results related to the design of architectural spaces and building elements from an acoustic point of view. The thematic scope is not limited exclusively to experimental research; predicting sound models or numerical analysis regarding architectural acoustics are also expected.

The main topics of the number include the following:

  • Absorption solutions for the acoustic improvement of architectural spaces
  • Acoustic diffusion in rooms
  • Variable room acoustics and smart acoustics
  • Acoustic design for architectural spaces
  • Predicting sound models
  • Psychoacoustics—perception of sound in architectural spaces.

Prof. Dr. J. Ramis-Soriano
Dr. Pedro Poveda-Martínez
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Buildings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Diffusion
  • Absorption
  • Smart acoustics
  • Variable acoustics
  • Prediction sound models
  • Sound perception
  • Psychoacoustics

Published Papers (4 papers)

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Research

16 pages, 2699 KiB  
Article
The Optimal Determination of the Truncation Time of Non-Exponential Sound Decays
by Min Chen and Chang-Myung Lee
Buildings 2022, 12(5), 697; https://0-doi-org.brum.beds.ac.uk/10.3390/buildings12050697 - 23 May 2022
Viewed by 1582
Abstract
The noise effects in the room impulse response (RIR) make the decay range of the integrated impulse response insufficient for reliable determination of reverberation time (RT). One of the preferred techniques to minimize noise effects is based on noise subtraction, RIR truncation, and [...] Read more.
The noise effects in the room impulse response (RIR) make the decay range of the integrated impulse response insufficient for reliable determination of reverberation time (RT). One of the preferred techniques to minimize noise effects is based on noise subtraction, RIR truncation, and correction for the truncation. The success of RT estimation through the method depends critically on the accurate estimation of the truncation time (TT). However, noise fluctuation and RIR irregularities can lead to discrepancies in the determined TT from the optimal value. The general goal of this paper is to improve RT estimates. An iterative procedure based on a non-exponential decay model consisting of a double-slope decay term and a noise term is presented to estimate the TT accurately. The model parameters are generated until the iterative procedure converges to a minimum difference between the energy decay curve (EDC) generated by the model and the Schroeder decay function. The decay rates of the EDCs with added pink noise levels are compared to those of the EDCs with low background noise. In addition, the detected TTs and the corresponding RTs are compared with the existing method and the noise compensation method (subtraction–truncation–correction method). Full article
(This article belongs to the Special Issue Advances in Architectural Acoustics)
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12 pages, 2124 KiB  
Article
Experimental Validation of the Model of Reverberation Time Prediction in a Room
by Artur Nowoświat and Marcelina Olechowska
Buildings 2022, 12(3), 347; https://0-doi-org.brum.beds.ac.uk/10.3390/buildings12030347 - 13 Mar 2022
Cited by 12 | Viewed by 2176
Abstract
It is well known that the uncertainty of input data has a great influence on the accuracy of room acoustics simulations. The aforementioned accuracy is significantly influenced by the selection of the acoustic properties of room-delimiting materials. Moreover, simulation errors are attributed to [...] Read more.
It is well known that the uncertainty of input data has a great influence on the accuracy of room acoustics simulations. The aforementioned accuracy is significantly influenced by the selection of the acoustic properties of room-delimiting materials. Moreover, simulation errors are attributed to the fact that rooms can be very irregular and sound diffusion can be uneven, and thus sound absorption can be unevenly distributed over the surfaces. Therefore, a very important element is the validation of the simulation model of interior acoustics, even when we use ready-made software dedicated to interior acoustics for the simulation. In the article, the reverberation room model simulated in the ODEON program was subjected to validation. The program is based on a hybrid method combining the ray and virtual source methods. For the validation, appropriate measurements of the reverberation time in that room were carried out. The validation was undertaken using the criterion of correct validation, consisting of comparing the value of the comparison error and the value of the validation uncertainty. Full article
(This article belongs to the Special Issue Advances in Architectural Acoustics)
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20 pages, 5759 KiB  
Article
A Multifunctional Solution for Simultaneous Sound Insulation and Acoustic Conditioning—An Example of Application in a Radio Studio
by Juan C. Rodríguez, Jesús Alba and Romina del Rey
Buildings 2022, 12(2), 123; https://0-doi-org.brum.beds.ac.uk/10.3390/buildings12020123 - 26 Jan 2022
Cited by 2 | Viewed by 3372
Abstract
In building acoustics, two different problems usually arise. There is a need to comply with established sound insulation parameters, but there are also legislative conditions concerning reverberation time. It is therefore necessary to acoustically insulate and condition the enclosures. When designing the acoustic [...] Read more.
In building acoustics, two different problems usually arise. There is a need to comply with established sound insulation parameters, but there are also legislative conditions concerning reverberation time. It is therefore necessary to acoustically insulate and condition the enclosures. When designing the acoustic treatment of buildings, sound insulation is always considered before acoustic conditioning. There are multiple solutions for sound insulation; one of them consists of a base wall reinforced with a plasterboard lining. The sound insulation improvement provided by these solutions will depend on the type of base wall used. A common solution for acoustic conditioning is the use of perforated plate lining systems with a plenum filled with sound absorbing material. This work presents a solution for simultaneous sound insulation and conditioning improvement, reducing the installation costs. Materials that provide the acoustic conditioning features were analyzed to validate their use in the complete solution, performing airflow resistance tests. The complete solution was also evaluated on a laboratory scale by conducting tests in a reverberation chamber and in a transmission chamber for small samples. Finally, the effectiveness of the presented solution was assessed with in-situ tests in a radio studio. Full article
(This article belongs to the Special Issue Advances in Architectural Acoustics)
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25 pages, 9619 KiB  
Article
On the Use of Perforated Sound Absorption Systems for Variable Acoustics Room Design
by Andreia Pereira, Anna Gaspar, Luís Godinho, Paulo Amado Mendes, Diogo Mateus, Jesus Carbajo, Jaime Ramis and Pedro Poveda
Buildings 2021, 11(11), 543; https://0-doi-org.brum.beds.ac.uk/10.3390/buildings11110543 - 15 Nov 2021
Cited by 5 | Viewed by 2694
Abstract
An important challenge for acoustic engineers in room acoustics design is related to the acoustic performance of multi-purpose auditoriums, which are typically designed to suit several performance requirements. With this intent, the analysis of several scenarios is usually performed individually, and then an [...] Read more.
An important challenge for acoustic engineers in room acoustics design is related to the acoustic performance of multi-purpose auditoriums, which are typically designed to suit several performance requirements. With this intent, the analysis of several scenarios is usually performed individually, and then an acceptable solution, that may be adapted to several situations, is selected. One way of providing a more appropriate acoustic performance for each function of the auditorium is using variable sound absorption techniques to control reverberation and other relevant acoustic phenomena associated to sound perception. In this paper, the acoustic behavior of a perforated system that may be suitable for achieving a variable acoustic solution for room acoustic design is addressed. In the design of a cost-effective solution, the surface appearance is kept unchanged, while variable acoustic behavior is achieved either by closing the holes in the back face of the perforated panel or by placing a porous material in varying positions inside the backing cavity, thus accomplishing different acoustic requirements within a multipurpose auditorium. An analytical approach, based on the transfer matrix method is employed for preliminary acoustic sound absorption assessment provided by the system and to develop optimized solutions. Diffuse sound absorption is then computed and used to simulate, by the ray-tracing method, the acoustic behavior of a multipurpose auditorium to demonstrate efficient acoustic performance for different types of use. Full article
(This article belongs to the Special Issue Advances in Architectural Acoustics)
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