On the performance of existing acoustic energy models when applied to multi-purpose performance halls

Gao, Jun; Tang, Shiu Keung; Zhao, Yiming; Cai, Yao; Pan, Lili

doi:10.1016/j.apacoust.2020.107401

Cited by 4 publications

(4 citation statements)

References 22 publications

(107 reference statements)

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“…Differing from concert halls, opera houses consist of two spaces: the auditorium and the stage house. These two spaces are coupled to each other through the proscenium, which makes a description of the spatial characteristics of the sound field in an opera house more sophisticated than in a concert hall [1][2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…Although the significance of stage acoustics in opera halls has been underlined by many researchers [1][2][3][4][5][6]8,9], the effects of the stage on the acoustics of the auditorium are, to the knowledge of the authors, not extensively documented in the literature. Pompoli and Prodi [10] suggested a standardized setup to guide acoustical measurements in baroque theatres.…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Sound Absorption of Stage House on the Acoustics of Auditorium in an Opera House

Gao,

Zhao,

Pan

2024

Buildings

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The coupling effects between the stage house and the auditorium in opera houses make the sound field very complex. In the present study, the effects of stage absorption on the primary monaural objective room acoustic parameters in the seating area of an opera house in China were investigated by means of computer simulation and scaled model measurement. In computer simulations, the absorption coefficient of the ceiling and walls of the stage house was changed across several steps, and then a series of experiments were conducted in a 1:20 scaled hall with and without curtains and wall absorption on the stage to verify the simulation results. It was found that stage absorption has a significant influence on early decay time (EDT), reverberation time (RT) and clarity (C80) in the seating area, while the effect on sound strength (G) is much smaller. The values of EDT and RT decrease with an increase in sound absorption on the stage, while C80 displays an opposite trend. In addition, when the average absorption coefficient of the stage walls and ceiling is over 0.5, the variations in these four parameters due to the increase in stage absorption can be constrained within an acceptable range.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effects of Sound Absorption of Stage House on the Acoustics of Auditorium in an Opera House

Gao,

Zhao,

Pan

2024

Buildings

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“…The acoustics inside these performance halls have attracted the attention of many researchers in the past few decades. There are studies on the subjective evaluations of the hall acoustics [10,11], on the effects of various indoor architectural features on the acoustical performance of the halls [12,13] and investigations focused on the prediction energy models [14], encompassing early-to-late energy balance [1].…”

Section: Introductionmentioning

confidence: 99%

Digital Twin for Acoustics and Stage Craft Facility Management in a Multipurpose Hall

Cairoli,

Tagliabue

2023

Acoustics

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Digital twins aim to virtually replicate the static and dynamic building characteristics through real-time connectivity between virtual and physical counterparts. Despite its potential, research into digital twins for facility management (FM) in multipurpose spaces is at an early stage, especially to control and optimize the various uses and configuration layouts. One of the major barriers to the adoption of digital twin technology in multipurpose buildings is the lack of interoperability, primarily between building information modeling (BIM) and Internet of things (IoT) data sources. This paper presents a possible digital-twin architecture to enable digital-twin applications aiming to impact building performance, acting on the facility management of stagecraft and variable acoustic architectural elements to control the reverberation time in real time. The case study of Roberto De Silva Multipurpose Hall is presented, in which the indoor acoustic quality is controlled by the digital twin that returns the reverberation time output as a function of stage equipment layouts, variable acoustic elements and hall occupancy.

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“…However, many performances do not enjoy critical and public success due to inadequate acoustics, thus, there is an increasing need to find architectural solutions that consider the variable acoustic requirements depending on the different possible layouts [27]. Gao et al [28] proposed measurements of monophonic acoustic parameters based on energy in two multi-use performance spaces. Thanks to acoustic prediction software, it is possible to simulate the acoustic behavior of the theatres.…”

Section: Introductionmentioning

confidence: 99%

Experimental Characterization and Acoustic Correction of a Multipurpose Performance Hall: The Italian Theatre “Cavallino Bianco”

et al. 2022

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This study presents the retrofit acoustic design of the Italian theatre “Cavallino Bianco”. In its historical configuration, the hall had a curved roof with a pressed-plant fiber ceiling, which was demolished and replaced with a wooden roof without a false ceiling, leading to an increase in volume and worsening of the reverberation time. This study proposes the realization of a wave ceiling and the application of sound-absorbing and reflecting panels on the walls, which have already been implemented. These modifications have affected the acoustic characterization of the theatre, as shown both through on-site measurements during the main construction phases and through numerical simulations. The reverberation time, clarity index, and speech transmission index (STI) are evaluated considering all the variations in the hall during its different construction times, and the optimal solution is identified with regard to different specific uses. The final configuration, by reducing the volume of the hall and using sound-absorbing materials, significantly reduces the reverberation time. In addition, the hall at full capacity with chairs and people shows evident improvement to the clarity index, allowing the theatre to be used for a wide range of musical genres such as instrumental, symphonic, and opera.

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On the performance of existing acoustic energy models when applied to multi-purpose performance halls

Cited by 4 publications

References 22 publications

The Effects of Sound Absorption of Stage House on the Acoustics of Auditorium in an Opera House

The Effects of Sound Absorption of Stage House on the Acoustics of Auditorium in an Opera House

Digital Twin for Acoustics and Stage Craft Facility Management in a Multipurpose Hall

Experimental Characterization and Acoustic Correction of a Multipurpose Performance Hall: The Italian Theatre “Cavallino Bianco”

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