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Journal articles on the topic 'Room acoustic'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Neidhardt, Annika, Christian Schneiderwind, and Florian Klein. "Perceptual Matching of Room Acoustics for Auditory Augmented Reality in Small Rooms - Literature Review and Theoretical Framework." Trends in Hearing 26 (January 2022): 233121652210929. http://dx.doi.org/10.1177/23312165221092919.

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For the realization of auditory augmented reality (AAR), it is important that the room acoustical properties of the virtual elements are perceived in agreement with the acoustics of the actual environment. This perceptual matching of room acoustics is the subject reviewed in this paper. Realizations of AAR that fulfill the listeners’ expectations were achieved based on pre-characterization of the room acoustics, for example, by measuring acoustic impulse responses or creating detailed room models for acoustic simulations. For future applications, the goal is to realize an online adaptation in

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2

Masih, Dawa A. A., Nawzad K. Jalal, Manar N. A. Mohammed, and Sulaiman A. Mustafa. "The Assessment of Acoustical Characteristics for Recent Mosque Buildings in Erbil City of Iraq." ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY 9, no. 1 (2021): 51–66. http://dx.doi.org/10.14500/aro.10784.

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The study of mosque acoustics, concerning acoustical features, sound quality for speech intelligibility, and additional practical acoustic criteria, is commonly overlooked. Acoustic quality is vital to the fundamental use of mosques, in terms of contributing toward prayers and worshippers’ appreciation. This paper undertakes a comparative analysis of the acoustic quality level and the acoustical characteristics for two modern mosque buildings constructed in Erbil city. This work investigates and examines the acoustical quality and performance of these two mosques and their prayer halls through

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Ellison, Steve, Pierre Germain, and Roger Schwenke. "Making a room ready and ensuring success for active acoustics systems." Journal of the Acoustical Society of America 154, no. 4_supplement (2023): A169. http://dx.doi.org/10.1121/10.0023160.

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Active Acoustics systems can be thought of as reducing the effective absorption of a room and/or increasing its effective volume and depend upon well-designed acoustic treatment and room shaping. Because Active Acoustics systems cannot reduce HVAC noise or improve isolation, these associated acoustical properties depend on the room’s acoustical design. Therefore, a successful Active Acoustic system installation relies on coordination with the acoustical consultant, from conceptual design to scheduling initial rehearsals with the various performance groups that utilize the room. Installation ex

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Postma, Barteld N. J., and Brian F. G. Katz. "An archaeoacoustic study on shape: the case study of the Iffland Theatre’s history (1802–1817)." Acta Acustica 7 (2023): 54. http://dx.doi.org/10.1051/aacus/2023046.

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Previous studies have discussed six pre-Sabine quantifiable guidelines employed in room acoustic design: voice directivity, audience rake, “echo theory”, stage acoustics, reverberation, and length, width, and height ratios. Around the turn of the 18th century, these notions led to two shapes that were theoretically regarded optimal for rooms with acoustical demands: ellipse and semi-circle. The first of these shapes to be tested was the ellipse in the design for the Iffland Theatre (1802–1817). As the resulting acoustics were notoriously poor, contemporary architects and acousticians discussed

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Zhang, Zhichao, and Guangzheng Yu. "Influence of sound source directivity on finite element simulation of small-room acoustics." Journal of the Acoustical Society of America 152, no. 4 (2022): A42. http://dx.doi.org/10.1121/10.0015479.

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Numerical simulation is a flexible and effective method for room acoustic design. Full-range simulation of room acoustics requires a combination of different numerical methods, in which wave acoustic methods (WAM) and geometric acoustic methods (GAM) are used for the low and high frequency region, respectively. In the general low-frequency WAM simulation, a sound source is often assumed to be a point source or loudspeakers are usually approximated by circular planar pistons. However, compared to a large room, the critical frequency between WAM and GAM should be higher in acoustic simulation of

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Benmaghsoula, Hammou Zohra. "THE NUMERICAL SIMULATION SUPPORT TOOL FOR THE ASSESSMENT OF THE ACOUSTIC QUALITY OF WORSHIP SPACES." NUMERICAL SIMULATION SUPPORT TOOL FOR THE ASSESSMENT OF THE ACOUSTIC QUALITY OF WORSHIP SPACES 6, February (2016): 1–20. https://doi.org/10.5281/zenodo.3698540.

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<strong>ABSTRACT</strong> Because of its religious and social function, the mosque is a place of exchange and knowledge transfer of this knowledge, through the preaching of the imams in the form of speeches and reading the Qur'an during prayer. The mosques are therefore examples of public institutions where it is necessary ensure acoustic comfort, in order to obtain a good quality of listening. The mosque is also considered a building that has specific features associated with room acoustics, by its function as a place of listening; this characteristic has a direct impact on the design cho

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SALMON, François, Charles VERRON, Cédric CAMIER, and Marina MALGRANGE. "Adaptation and evaluation of Pyroomacoustics for auralization purposes." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 6 (2024): 5906–17. http://dx.doi.org/10.3397/in_2024_3660.

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An open-source room simulation software that relies on geometrical acoustics - Pyroomacoustics - was used to compute Binaural Room Impulse Responses (BRIRs) of existing rooms that are modeled in the Benchmark for Room Acoustical Simulation (BRAS). Modifications were made to the software to investigate the impact of the scattering model on the acoustic parameter values. A comparison with the acoustic parameter measurements showed that the values of EDT, C80 and D50 were found to be closer when using the Vector-Mixing method in comparison with the original scattering method. Overall, the alterna

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Knöfel, Björn, Paula van Brummelen, Tobias Behrens, and Hartmut Schirmer. "Does the wall sound different? Variable acoustics in rehearsal rooms using small resonator structures in an acoustic panel." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 5 (2021): 1867–78. http://dx.doi.org/10.3397/in-2021-1972.

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As the name already states, multipurpose rooms are often used from various people for different intentions like meetings or musical practicing. One example are musical rehearsal rooms, where the acoustic specifications have to meet the requirements of musicians playing different instrument groups. To meet the desire for variable acoustics in a rehearsal room, musicians often like to adjust the room to there personal preferences, what is mostly done by adjusting the frequency dependent room decay curve (T60). Hence, a variable acoustic panel has been developed which consists of several small ad

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Okazawa, Kazuha, Takeshi Okuzono, and Takumi Yoshida. "An auditory virtual reality of meeting room acoustics using wave-based acoustic simulations: A content for intuitive understanding of room-acoustics control effect by sound absorbers." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 2 (2023): 6328–35. http://dx.doi.org/10.3397/in_2023_0934.

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Recently, wave-based room acoustic simulation technologies are becoming a realistic option as a small-room acoustics design tool and a virtual indoor sound environment creation tool for research and education. The present paper shows an auditory VR meeting room content, which makes us easily understand how sound absorbers play an essential role in creating a better acoustic environment. Unity creates the 3D virtual reality model, and a binaural room-acoustic auralization is realized by a hybrid technique combined with Ambisonics and the head-related transfer function using RIRs computed by a h

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SIEBEIN, Keely, Lesa LORUSSO, Margaret SUTTON, Tatiana OROZCO, and Dagmar RITTENBACHER. "Operating room soundscape design intervention study." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 2 (2024): 9838–50. http://dx.doi.org/10.3397/in_2024_4306.

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Noise levels in a typical Operating Room are often well beyond the recommended 45dB for a typical OR environment. Due to stringent cleanability requirements in hospitals, there are limited finishes that can be used in these rooms. Researchers from Gresham Smith and Siebein Acoustic are currently engaged in a research project to investigate how the design of the operating room environment can be acoustically optimized for staff well-being and better patient outcomes. . The study focuses on the environmental variables that can be controlled including the effects of diffusing panels, angling of t

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Algargoosh, Alaa, and Nikhil Singh. "Using machine learning to reconstruct room geometry from an impulse response." Journal of the Acoustical Society of America 153, no. 3_supplement (2023): A263. http://dx.doi.org/10.1121/10.0018790.

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Machine learning in room acoustics is an emerging field with great potential yet to be explored. Previous research includes predicting acoustic properties such as the impulse response from visual features that include an image of a room. However, one application that can significantly transform the architectural acoustics design process is reconstructing the room geometry based on its acoustic properties. This paper explores applying machine learning in predicting room geometry from an impulse response. The research aims to provide a tool for architects to design a room based on the desired ac

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D'Antonio, Peter, and Rinaldi P. Petrolli. "Non-cuboid iterative room optimizer." Journal of the Acoustical Society of America 152, no. 4 (2022): A105. http://dx.doi.org/10.1121/10.0015694.

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The growing processing power of desktop and distributed cloud cluster computing is playing a larger role providing computational architectural acoustic solutions. This presentation will provide a status update on the Non-cuboid Iterative Room Optimization software called NIRO. It offers an iterative approach to full bandwidth optimization of critical listening rooms. The program uses a finite element method (FEM), image source model (ISM), and non-dominating sorting genetic algorithm (NSGA) to simultaneously optimize the room geometry of any shaped room, including boundary admittances, for any

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okcu, selen. "Realism analysis of synthesized healthcare sound environments." Journal of the Acoustical Society of America 152, no. 4 (2022): A182. http://dx.doi.org/10.1121/10.0015965.

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The acoustic qualities of healthcare sound environments can have significant influences on care providers’ ability to conduct critical sound tasks. Healthcare professionals constantly listen to the aural cues (e.g., alarms) and make critical decisions based on them. This study aims to assess the reliability of an open-source acoustical simulation tool in rendering healthcare providers’ auditory experience to enable the development of effective healthcare sound environments. The Pachyderm is developed as an open-source acoustical modeling and simulation plug-in for the Rhinoceros 3D-modeling pl

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Arvidsson, Emma, Erling Nilsson, Delphine Bard Hagberg, and Ola J. I. Karlsson. "The Effect on Room Acoustical Parameters Using a Combination of Absorbers and Diffusers—An Experimental Study in a Classroom." Acoustics 2, no. 3 (2020): 505–23. http://dx.doi.org/10.3390/acoustics2030027.

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Several room acoustic parameters have to be considered in ordinary public rooms, such as offices and classrooms, in order to present the actual conditions, thus increasing demands on the acoustic treatment. The most common acoustical treatment in ordinary rooms is a suspended absorbent ceiling. Due to the non-uniform distribution of the absorbent material, the classical diffuse field assumption is not fulfilled in such cases. Further, the sound scattering effect of non-absorbing objects such as furniture are considerable in these types of rooms. Even the directional characteristic of the sound

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D'Antonio, Peter, and Rinaldi P. Petrolli. "Non-cuboid Iterative room optimizer." Journal of the Acoustical Society of America 151, no. 4 (2022): A144. http://dx.doi.org/10.1121/10.0010915.

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In past years, various iterative optimization programs emerged to separately determine the optimal room ratios, sources and listening positions of perfectly reflective cuboid rooms, using the image-source model. Despite its fast computation times, this approach does not account for scattering, phase change at the boundary and cannot be extended to non-cuboid rooms. This presentation describes the current status of a program called NIRO, that offers a solution to those issues, by using the Boundary Element Method (BEM) to compute the frequency response from 20–200 Hz, considering the effects of

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Winroth, Julia, Mikael Ögren, Dag Glebe, and Kerstin Persson Waye. "Child-Centred Room Acoustic Parameters of Public Preschools in Sweden." Buildings 13, no. 11 (2023): 2777. http://dx.doi.org/10.3390/buildings13112777.

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Preschool should promote children’s well-being and development, but the indoor sound environment is commonly problematic. The aim of our research project Supportive Preschool ACoustic Environment (SPACE) is to identify acoustic quality factors resulting in a supportive sound environment for children. This paper presents the first phase of the project where acoustic conditions were measured in unoccupied preschool rooms and analysed in terms of reverberation time, early decay time, sound strength, speech clarity, unoccupied sound pressure levels, and several room features. The results were comp

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Okuzono, Takeshi, M. Shadi Mohamed, and Kimihiro Sakagami. "Potential of Room Acoustic Solver with Plane-Wave Enriched Finite Element Method." Applied Sciences 10, no. 6 (2020): 1969. http://dx.doi.org/10.3390/app10061969.

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Predicting room acoustics using wave-based numerical methods has attracted great attention in recent years. Nevertheless, wave-based predictions are generally computationally expensive for room acoustics simulations because of the large dimensions of architectural spaces, the wide audible frequency ranges, the complex boundary conditions, and inherent error properties of numerical methods. Therefore, development of an efficient wave-based room acoustic solver with smaller computational resources is extremely important for practical applications. This paper describes a preliminary study aimed a

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Farid, Dalal, Amina Naidja, Khalid Zaouia, and Yasser Nassim Benzagouta. "Reflectors Impact on Acoustic Correction of the Conference Hall at El Khalifa Cultural Center in Constantine." Prostor 33, no. 1(69) (2025): 160–69. https://doi.org/10.31522/p.33.1(69).12.

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In Algeria, the field of acoustics has garnered limited attention from researchers, predominantly focusing on physical acoustics. Architectural acoustics, which deals with controlling auditory comfort and listening criteria within buildings, remains largely underexplored. The acoustic quality of spaces is a significant concern for physicists, architects, and researchers alike. The application of architectural acoustics in public spaces, such as conference rooms, greatly enhances the exchange of oral information and supports learning processes that require intensive verbal communication. This r

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Baran, Mihai-Vlad, Richard King, and Wieslaw Woszczyk. "A general overview of methods for generating room impulse responses." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A282. http://dx.doi.org/10.1121/10.0027512.

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The utilization of room impulse responses has proven valuable for both the acoustic assessment of indoor environments and music production. Various techniques have been devised over time to capture these responses. Although algorithmic solutions have been in existence since the 1970 s for generating synthetic reverberation in real time , they continue to be computationally demanding and in general lack the accuracy in comparison to measured authentic Room Impulse Responses (RIR). In recent times, machine learning has found application in diverse fields, including acoustics, leading to the deve

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Meyer-Kahlen, Nils, Sebastian J. Schlecht, and Tapio Lokki. "Clearly audible room acoustical differences may not reveal where you are in a room." Journal of the Acoustical Society of America 152, no. 2 (2022): 877–87. http://dx.doi.org/10.1121/10.0013364.

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A common aim in virtual reality room acoustics simulation is accurate listener position dependent rendering. However, it is unclear whether a mismatch between the acoustics and visual representation of a room influences the experience or is even noticeable. Here, we ask if listeners without any special experience in echolocation are able to identify their position in a room based on the acoustics alone. In a first test, direct comparison between acoustic recordings from the different positions in the room revealed clearly audible differences, which subjects described with various acoustic attr

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Postma, Barteld N. J., Evan Green, Eckhard Kahle, and Brian F. G. Katz. "Pre-Sabine Room Acoustic Guidelines on Audience Rake, Stage Acoustics, and Dimension Ratios." Acoustics 3, no. 2 (2021): 235–51. http://dx.doi.org/10.3390/acoustics3020017.

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Prior to Sabine’s work on the Fogg Art Museum and Boston Symphony Hall, several numerical guidelines had been developed and applied to the design of rooms with specific acoustic demands such as theatres, concert halls, and opera houses. Previous papers have discussed guidelines based on the following principles: voice directivity, which was employed in the design of at least 11 rooms; “echo theory”, which quantifies the perception threshold between direct sound and first order reflections in order to prevent echoes from occurring, aiding in the design of at least 7 rooms and leading to the fir

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Iannace, Gino, Ilaria Lombardi, Ernesto Scarano, and Amelia Trematerra. "Discover the Acoustics of Vanvitelli Architecture in the Royal Palace of Caserta." Heritage 8, no. 4 (2025): 142. https://doi.org/10.3390/heritage8040142.

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In this paper, the acoustic characteristics of the most important rooms of the Royal Palace of Caserta are presented. The palace, built in the XVIII century as a residence for the King of Naples, consists of numerous rooms dedicated to court life. The acoustic properties of the rooms have been studied according to ISO 3382. For each room, the average values of reverberation time (T30), clarity (C80), definition (D50), and Speech Transmission Index (STI) are reported. The acoustic issues of the rooms are highlighted as the understanding of acoustics during the period in which the palace was con

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Autio, Hanna, Mathias Barbagallo, Carolina Ask, Delphine Bard Hagberg, Eva Lindqvist Sandgren, and Karin Strinnholm Lagergren. "Historically Based Room Acoustic Analysis and Auralization of a Church in the 1470s." Applied Sciences 11, no. 4 (2021): 1586. http://dx.doi.org/10.3390/app11041586.

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Worship space acoustics have been established as an important part of a nation’s cultural heritage and area of acoustic research, but more research is needed regarding the region of northern Europe. This paper describes the historical acoustics of an important abbey church in Sweden in the 1470s. A digital historical reconstruction is developed. Liturgical material specific to this location is recorded and auralized within the digital reconstruction, and a room acoustic analysis is performed. The analysis is guided by liturgical practices in the church and the monastic order connected to it. I

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Komínková, Kateřina, Michal Papranec, and Libor Šteffek. "Simulation of Different Acoustic Lecture Room Designs." Advanced Materials Research 899 (February 2014): 505–8. http://dx.doi.org/10.4028/www.scientific.net/amr.899.505.

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Room acoustics of the internal environment is among others an important part of good design. The paper deals with the simulation of lecture room acoustic structural modifications. In specific lecture room was measured reverberation time of the current state. Based on the results of the measurements several design variations of acoustic structures have been made to suit the room with a standard requirements for recitation. Subsequently, these measures were modeled and examined in the simulation program. The paper points to the importance of simulations in design of interior acoustic adjustments

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King, Richard, Wieslaw Woszczyk, and Michail Oikonomidis. "Enhancement of virtual acoustics rendering using boundary mounted dipole loudspeakers." Journal of the Acoustical Society of America 155, no. 3_Supplement (2024): A177. http://dx.doi.org/10.1121/10.0027228.

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The Immersive Media Lab at McGill University hosts a Virtual Acoustics Technology (VAT) system incorporating a suspended array of omnidirectional loudspeakers. Using a convolution reverb engine, acoustic simulations of real spaces can be realized via a catalog of Room Impulse Response measurements. Reflected sound in the room helps to disguise the location of the sound emitters rendering virtual acoustics. One limitation of the system, however, is the interference between the lab’s natural acoustics and the virtual environment generated by the VAT system. The improvement under consideration is

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Seike, Yukiko, Daisaku Miura, Takashi Ishizuka, Kanaya Kitajima, Ayame Kato, and Toru Miyajima. "Development of Room Acoustic Prediction and Evaluation Tools for Designers." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 6 (2023): 1007–14. http://dx.doi.org/10.3397/in_2022_0142.

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We develop room acoustic prediction and evaluation tools for designers to be used in halls and conference areas where the design of acoustical performance is essential. The designers, with no specialized knowledge of acoustics, are able to examine the tools at an early stage of the project. The interface tool consists of the 3D CAD software-Rhinoceros, and its plug-in tool-Grasshopper. The designers first build a room model on Rhinoceros and locate the sound source and the receiver points in the model. They then set the calculation conditions via Grasshopper, such as room use and type of inter

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Arvidsson, Emma, Erling Nilsson, Delphine Bard Hagberg, and Ola J. I. Karlsson. "Quantification of the Absorption and Scattering Effects of Diffusers in a Room with Absorbent Ceiling." Buildings 11, no. 12 (2021): 612. http://dx.doi.org/10.3390/buildings11120612.

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In ordinary public rooms, such as classrooms and offices, an absorbent ceiling is the typical first acoustic action. This treatment provides a good acoustic baseline. However, an improvement of specific room acoustic parameters, operating for specific frequencies, can be needed. It has been seen that diffusing elements can be effective additional treatment. In order to choose the right design, placement, and quantity of diffusers, a model to estimate the effect on the acoustics is necessary. This study evaluated whether an SEA model could be used for that purpose, particularly for the cases wh

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Prasetya, Maria Christina. "Design of Simple Acoustic Materials for High School Hall Using Software CATT." Journal of Artificial Intelligence in Architecture 1, no. 1 (2022): 10–19. http://dx.doi.org/10.24002/jarina.v1i1.4874.

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Good acoustic quality is essential to consider in designing a multipurpose room. Unfortunately, school halls usually have poor room acoustics. Lack of funds and lack of knowledge about acoustics cause the acoustic quality of the room to be very poor. The purpose of this research is to design a simple acoustic material application concept for a high school hall based on the Ministry of Education and Culture manual to meet the requirements for speech, music, and sports functions. Simple acoustic materials exist in everyday life, such as corrugated cardboard, cork, multiplex boards, newspapers, e

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PUZALOWSKI, Philip, Jesper PEDERSEN, and Cheol-Ho JEONG. "Optimizing a small room for critical listening with Treble." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 270, no. 9 (2024): 2317–28. http://dx.doi.org/10.3397/in_2024_3165.

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This work presents a detailed validation of new software Treble launched in 2023 that hybridizes the discontinuous Galerkin method and pressure-based geometrical acoustics methods. We investigated a small studio for voice productions both through physical measurements and treble's room acoustic simulations. By employing a dense measurement grid with a spacing of 25 cm at the ear level, a comprehensive validation of the room acoustic simulation was conducted in terms of room impulse responses, transfer functions, ISO 3382 acoustic parameters and sound pressure level distribution. Treble's simul

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Huszty, Csaba, Bence Bakos, Bálint Csanády, Gábor Hidy, and András Lukács. "Prediction of room acoustic parameters in rectangular rooms using recurrent neural networks." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 5 (2023): 3058–69. http://dx.doi.org/10.3397/in_2023_0444.

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Reliably and efficiently predicting room acoustic parameters in rectangular rooms with an uneven distribution of materials and sound absorption is a common task in room acoustic design. Readily available statistical formulas are often not applicable to typical classrooms, cellular offices, or hospital wards. Furthermore, many of these methods only predict the reverberation time, each with their own, often ambiguous limitations of applicability which is impractical for an efficient room acoustic design process. On the other hand, predicting room acoustic parameters by means of ray-tracing or ot

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Hannibal, Moritz. "Raumakustische Planung von Großraumbüros gemäß ASR A3.7." ASU Arbeitsmedizin Sozialmedizin Umweltmedizin 2024, no. 10 (2024): 623–26. http://dx.doi.org/10.17147/asu-1-391887.

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Room acoustic planning of open-plan offices in accordance with ASR A3.7 Room acoustic verification for office use is generally carried out in accordance with the recommendations of DIN 18041. The introduction of the workplace regulation ASR A3.7 “Noise” in 2018 formulated additional requirements that can affect the dimensioning of room acoustics measures. This article summarizes practical experience in the acoustic planning of open-plan offices and examines the extent to which the target values described in ASR A3.7 are in line with the protection goals of occupational health and safety.

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Jeong, D. U., and F. R. Fricke. "A Preliminary Investigation of the Perceived Smallest Sound Duration Change in a Room." Building Acoustics 4, no. 3 (1997): 197–209. http://dx.doi.org/10.1177/1351010x9700400303.

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The present work aims at producing a test, similar to a speech intelligibility test, which can be used to rate the acoustic quality of rooms for music. Listeners' perceptions of the duration of sounds were investigated in an attempt to find a useful indicator of the acoustics of a room for music and speech. The research design was based on a discrimination task and a 2AFC experimental procedure. Two experiments were carried out in which two acoustic variables, reverberation time and background noise level, were varied and listeners' smallest perceivable sound duration changes were measured. It

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Zhu, Liying, Junjuan Zhao, Xianhui Li, et al. "Design and simulation of acoustics for the home theatre." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 263, no. 4 (2021): 2052–57. http://dx.doi.org/10.3397/in-2021-2039.

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As a typical acoustics room, the sound quality of home theatre is an important standard to evaluate its design. Qualified acoustics design is the guarantee of good sound quality. The volume of home theatre is generally small, so the room size is similar to the low-frequency wavelength. Then the resonance will occur when the excitation of the sound source frequency acts on the natural resonance frequency of the room. At the same time, the secondary reflection of the room also interferes the direct sound emitted by the speaker, thus destroying the sound image. In order to solve the above problem

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Batista, Michel. "Acoustic assessment of an open-plan office environment against the newly published ISO 22955 acoustic parameters." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 265, no. 6 (2023): 1916–23. http://dx.doi.org/10.3397/in_2022_0270.

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This paper aims to assess the acoustic performance of an existing open-plan office environment with suspended sound absorbers below a hard reflective ceiling and low workstation dividers against the newly published ISO 22955 acoustic parameters. The room acoustic variables, such as sound absorption, screens between workstations, speech masking sounds and room dimensions all interact in a complex way affecting the values of single-number quantities presented in the ISO 22955 standard. In order to determine the in-situ performance, acoustic measurements were carried out on site. Odeon room acous

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Schütze, Julia, Christoph Kirsch, Birger Kollmeier, and Stephan D. Ewert. "Comparison of speech intelligibility in a real and virtual living room using loudspeaker and headphone presentations." Acta Acustica 9 (2025): 6. https://doi.org/10.1051/aacus/2024068.

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Virtual acoustics enables hearing research and audiology in ecologically relevant and realistic acoustic environments, while offering experimental control and reproducibility of classical psychoacoustics and speech intelligibility tests. Hereby, indoor environments are highly relevant, where listening and speech communication frequently involve multiple targets and interferers, as well as connected adjacent spaces that may create challenging acoustics. Hence, a controllable laboratory environment is evaluated here (by room acoustical parameters and speech intelligibility) which closely resembl

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Jeong, Jeong-ho. "Alarm Sound Propagation Characteristics of Gas Extinguishing System Installed in Computer Server Room." Journal of the Korean Society of Hazard Mitigation 20, no. 4 (2020): 145–52. http://dx.doi.org/10.9798/kosham.2020.20.4.145.

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Gas extinguishing systems are used for fire protection in server rooms and data centers. In the fire safety standards (NFSC 106, 107) of gas extinguishing systems (carbon dioxide, halon, and clean agent extinguishing system), sound alarm devices are installed in each protected area to provide an effective warning to personnel in the protected area or areas with objects to be protected. By measuring the noise level generated in a small server room, it was found that more than 70 dB of noise was generated. Therefore, to effectively transmit alarm sound to workers in all areas within the protecti

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Upadhyaya, Sreenivasa, Wim Buyens, Wim Desmet, and Peter Karsmakers. "Room Acoustic Adversarial Neural Network for Robust Sound Event Classification." Journal of the Audio Engineering Society 72, no. 11 (2024): 754–66. http://dx.doi.org/10.17743/jaes.2022.0174.

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The variation in the acoustic condition of a room presents a major hurdle in the performance robustness of sound event classification. Room impulse response characterizes the way in which a sound wave is propagated from source to receiver and the overall perceptual quality and intelligibility of the recorded sound. This study presents the Room Acoustic Adversarial Neural Network (RAANN) method that can make sound event classification more robust to changes in acoustic condition by exploiting knowledge regarding the room acoustics during learning. With RAANN, the weighted F1 score for the class

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Labia, Laura, Louena Shtrepi, and Arianna Astolfi. "Improved Room Acoustics Quality in Meeting Rooms: Investigation on the Optimal Configurations of Sound-Absorptive and Sound-Diffusive Panels." Acoustics 2, no. 3 (2020): 451–73. http://dx.doi.org/10.3390/acoustics2030025.

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This work deals with the improvement of the room acoustic quality of two medium sized meeting rooms through the investigation of the optimal placement of absorption and diffusive panels on the walls and ceiling. Acoustic measurements have been carried out in the existing untreated rooms with ODEON 13 room acoustics measurement and prediction software, and the Adobe Audition plugins Aurora. Simulations of different combinations of sound absorption and diffusion treatments have been carried out with the updated version of the software, ODEON 15. The panels were positioned in the meeting rooms fo

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Llorca-Bofí, Josep, Ernest Redondo, and Michael Vorländer. "Learning Room Acoustics by Design: A Project-Based Experience." International Journal of Engineering Education 35, no. 1B (2019): 417–23. https://doi.org/10.5281/zenodo.2579130.

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Optimizing room acoustics teaching for architects and building engineers is an unfinished business. Moreover, theoretical explanations about acoustic concepts hardly support the understanding of basic concepts of acoustics on these students.A basic BLA (Bipolar Laddering Assessment) experiment is presented with students showing that an active learning method can be accepted by them more easily when ‘‘sonification’’ is included in the course. This process, which converts data into non-speech audio to make acoustic concepts audible, is suggested as a possible solution for

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Woszczyk, Wieslaw, Doyuen Ko, and Brett Leonard. "Virtual Acoustics at the Service of Music Performance and Recording." Archives of Acoustics 37, no. 1 (2012): 109–13. http://dx.doi.org/10.2478/v10168-012-0015-6.

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Abstract Virtual or active acoustics refers to the generation of a simulated room response by means of electroacoustics and digital signal processing. An artificial room response may include sound reflections and reverberation as well as other acoustic features mimicking the actual room. They will cause the listener to have an impression of being immersed in virtual acoustics of another simulated room that coexists with the actual physical room. Using low-latency broadband multi-channel convolution and carefully measured room data, optimized transducers for rendering of sound fields, and an in

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Wróbel, Jakub, and Damian Pietrusiak. "Noise Source Identification in Training Facilities and Gyms." Applied Sciences 12, no. 1 (2021): 54. http://dx.doi.org/10.3390/app12010054.

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This paper deals with noise problems in industrial sites adapted for commercial training venues. The room acoustics of such an object were analyzed in the scope of the reverberation time and potential acoustic adaptation measures are indicated. Identification and classification of noise sources in training facilities and gyms was carried out based on the acoustic measurements. The influence of rubber padding on impact and noise reduction was investigated in the case of chosen noise-intensive exercise activities performed in a previously described acoustic environment. Potential noise reduction

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Sari, Laina Hilma, and Zulfian Zulfian. "An Assessment of Room Acoustics Performance of Baiturrahman Grand Mosque." Elkawnie 6, no. 1 (2020): 24. http://dx.doi.org/10.22373/ekw.v6i1.5420.

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Abstract : Acoustical design as part of the audio comfort influences the architectural design strategy of a mosque significantly. As belonging to the speech room criteria, a mosque should meet some acoustic room requirements to deliver the solemnness to the worshipper during the prayer. Concerning this, the study aims to assess the indoor acoustics performance of Baiturrahman Grand Mosque, Banda Aceh. Baiturrahman grand mosque is an important place of worship for Acehnese and becoming a landmark of Banda Aceh City. The mosque which contains a lot of history of Aceh was built in heavy construct

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Sree, N. K. Vijaya, and B. Venkatesham. "Optimization methods for acoustic material selection in interior spaces." INTER-NOISE and NOISE-CON Congress and Conference Proceedings 268, no. 6 (2023): 2846–56. http://dx.doi.org/10.3397/in_2023_0414.

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The quality of the acoustic environment required in a room varies with the application, which could include industrial spaces, office rooms, classrooms, theatres, etc. Treatment of surfaces in rooms with acoustic materials is important in achieving the desired acoustic quality. In an industrial environment, it is necessary to treat walls with interior and exterior acoustic linings that are both cost and acoustical quality efficient. This work intends to develop optimization strategies for acoustic material selection using cost minimization as the objective function, in conjunction with acousti

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Warkentin, Larissa, Florian Denk, Alexandra Winkler, et al. "Effect of room acoustic properties and head orientation on practical speech-in-noise measurements for various spatial configurations." Acta Acustica 8 (2024): 24. http://dx.doi.org/10.1051/aacus/2024018.

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Speech recognition scores in noise can be affected by measurement conditions such as the spatial configuration, room acoustic properties, or the position and head orientation of a test person. This is critical when comparing repeated measurements, e.g., during hearing aid verification. While the basic effects of these factors are known, specific effect sizes for practically relevant configurations have not previously been reported. We investigated the effects of audiological test-room acoustics with low reverberation, and of head movements on speech-in-noise tests for typical spatial configura

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Way, Evelyn. "Evaluating the reverberation chamber as a small room: How room dimensions affect the generalization of testing results." Journal of the Acoustical Society of America 152, no. 4 (2022): A42. http://dx.doi.org/10.1121/10.0015476.

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Testing acoustic properties is performed in specially designed reverberation chambers according to relevant ASTM, ISO, and other international standards. Performing this testing is complicated by the fact that practical considerations limit the size of the reverberation rooms. Where the dimensions of the room are similar in size to the wavelength of the frequency of interest, modal behavior becomes dominant, and the statistical analysis of room acoustics based on the diffuse sound field theory is not sufficient to characterize the sound field. However, standard methods implement formulas which

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Thilakan, Jithin, Balamurali B T, Otavio Colella Gomes, Jer-Ming Chen, and Malte Kob. "Exploring the role of room acoustic environments in the perception of musical blending." Journal of the Acoustical Society of America 157, no. 2 (2025): 738–54. https://doi.org/10.1121/10.0035563.

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Assessing blending of instruments is important in music performance and perception research, but remains underexplored due to its complex multi-dimensional nature. Despite extensive research on source-level blending, the influence of room acoustics on this process is rarely examined. This study proposes a computational modelling approach to evaluate the perceived overall blending between instruments examining the blending at the source-level and its alteration brought by room acoustics. Three audio stimuli, each showcasing different degrees of source-level blending between two violins, were au

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Redman, Yvonne Gonzales, Joshua D. Glasner, Dario D'Orazio, and Pasquale Bottalico. "Singing in different performance spaces: The effect of room acoustics on singers' perception." Journal of the Acoustical Society of America 154, no. 4 (2023): 2256–64. http://dx.doi.org/10.1121/10.0021331.

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Classical singers' performances vary across different acoustic environments. The changes in the delivery are influenced by the singer's perception of the venue's acoustics. This study investigated these relationships using nine professional or semi-professional classical singers. Participants performed Giordani's “Caro mio ben” aria in five venues, and the acoustic parameters reverberance (T30 and EDT), clarity (C80), early vocal support (STv), and tonal color (EDTf) were measured. From a factor analysis of the subjective analysis three major factors emerged that, we propose, would represent t

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Woszczyk, Wieslaw. "Active Acoustics in Concert Halls - A New Approach." Archives of Acoustics 36, no. 2 (2011): 379–93. http://dx.doi.org/10.2478/v10168-011-0028-6.

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Abstract Active acoustics offers potential benefits in music halls having acoustical short-comings and is a relatively inexpensive alternative to physical modifications of the enclosures. One critical benefit of active architecture is the controlled variability of acoustics. Although many improvements have been made over the last 60 years in the quality and usability of active acoustics, some problems still persist and the acceptance of this technology is advancing cautiously. McGill's Virtual Acoustic Technology (VAT) offers new solutions in the key areas of performance by focusing on the ele

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Tervo, Sakari, Jukka Pätynen, and Tapio Lokki. "Acoustic Reflection Localization from Room Impulse Responses." Acta Acustica united with Acustica 98, no. 3 (2012): 418–40. http://dx.doi.org/10.3813/aaa.918527.

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The localization of acoustic reflections, i.e., the image-sources, is of interest when analyzing the acoustics of concert halls and auditoriums. The location is needed, for example, in room acoustic studies, auralization, inference of room geometry, or when estimating the acoustic properties of surfaces. This article studies the localization of acoustic reflections from spatial impulse responses. The contribution of this article is threefold. First, the article proposes a new method for localization that takes advantage of the time of arrival (TOA) estimation. Secondly, it is proposed that TOA

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Abbasi, Mustafa Z., Preston S. Wilson, and Ofodike A. Ezekoye. "Ray tracing and finite element modeling of sound propagation in a compartment fire." Journal of the Acoustical Society of America 151, no. 5 (2022): 3177–88. http://dx.doi.org/10.1121/10.0009800.

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A compartment fire (a fire in a room or building) creates temperature gradients and inhomogeneous time-varying temperature, density, and flow fields. This work compared experimental measurements of the room acoustic impulse/frequency response in a room with a fire to numerically modeled responses. The fire is modeled using a Fire Dynamics Simulator (FDS). Acoustic modeling was performed using the temperature field computed by FDS. Room acoustics were modeled using two-dimensional ray and finite element modeling. A three-dimensional model was used to simulate an open flame. COMSOLTM Multiphysic

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