Acoustic evaluation of the cathedral of Seville as a concert hall and proposals for improving the acoustic quality perceived by listeners

Alonso, Alicia; Sendra, Juan J.; Zamarreño, Teófilo

doi:10.1080/19401493.2013.848937

Cited by 36 publications

(30 citation statements)

References 21 publications

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“…The reverberant sound absorption coefficients α, chosen from the literature (Martellotta, 2009;Martellotta et al, 2011;Vorländer, 2008;Carmona et al, 2009;Meyer, 2003) and assigned to each area, correspond to the finishing materials of the church (Table 1). Sound scattering coefficients s (Table 1) were matched to the type of materials with smooth surfaces (for example: walls or marble floor), moderately irregular (for example, domes and arches) and irregular (for example, the altar) (Alonso et al, 2014).…”

Section: Acoustic Model Of the Churchmentioning

confidence: 99%

“…Using the calculation procedure shown above to determine the value of the RMS index, which concerned the case of the unoccupied church, the value of the RMS occ index was calculated, which corresponded to the occupied church. The values of acoustic parameters, averaged in space and frequency, such as: After putting the partial indices RMS (RMS occ ) and D into Formula (1), the values of GAP = 0.54 for the unoccupied church and GAP occ = 0.79 for the church with the audience were obtained. The calculated values of the four partial indices and the single-number global index of acoustic properties of the St. Elizabeth of Hungary Church for unoccupied and occupied cases are shown in Fig.…”

Section: The Global Index Of Acoustic Properties Of Roman Catholic Chmentioning

confidence: 99%

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Calculation Models for Acoustic Analysis of St. Elizabeth of Hungary Church in Jaworzno Szczakowa

Kosała

2016

Archives of Acoustics

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In parallel with research conducted using conventional methods, a uniform index method for assessing the acoustic quality of Roman Catholic churches has been developed. The latest version of the index method has been created using the index observation matrix of 12 churches which have been rated by means of the single number global index. Assessments of the acoustic quality of any Roman Catholic church, using two calculation models: the Global Acoustic Properties Index (GAP) and the Global Index (GI), are shown in the article. The verification was performed on the example of one church, showing the way of calculating global indices to assess the acoustic quality of a new facility. The next stages in the development of the index method for assessing the acoustic quality of churches were taking into account the audience, using simulation tests and determining the spatial distribution of the single number GAP index in an examined church. An attempt to use the GAP and GI calculation models to assess the acoustic properties of some churches is also shown in the article.

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Section: Acoustic Model Of the Churchmentioning

confidence: 99%

Section: The Global Index Of Acoustic Properties Of Roman Catholic Chmentioning

confidence: 99%

Calculation Models for Acoustic Analysis of St. Elizabeth of Hungary Church in Jaworzno Szczakowa

Kosała

2016

Archives of Acoustics

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“…However, the aim of this paper is to address a very specific problem that arose while investigating the effect of ephemeral architecture on the acoustics of ancient churches (Alonso et al 2014). The problem is that of establishing the best way to model textile materials hung free in space.…”

Section: Introductionmentioning

confidence: 99%

Room acoustic modelling of textile materials hung freely in space: from the reverberation chamber to ancient churches

Alonso

Martellotta

2015

Journal of Building Performance Simulation

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The aim of this study is to investigate how sound absorbing materials like curtains should be modelled in geometrical acoustic (GA) software when hung freely in space. The use of these tools is widespread today. Whatever the scope of the simulation, dealing with textile materials can be particularly challenging as they both absorb and transmit sound, and absorption is dependent on distance of the walls. Therefore, care must be taken to enter properly validated data. Absorption coefficients found in the literature are measured with samples close to wall, and are not suitable when materials are hung freely. The effects of material placement on both absorption and transmission coefficients were therefore investigated using scaled-down physical models of a reverberant chamber and a church. Subsequently, GA models of both spaces were used to demonstrate that simulated results are reliable assuming that absorption and transmission coefficients are correctly determined.

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“…Similar results have been found in other monumental churches. [8][9][10] Acoustic properties of the materials…”

Section: Acoustic Measurementsmentioning

confidence: 99%

Acoustic correction of monumental churches with ceramic material: The case of the Cathedral of Benevento (Italy)

Iannace¹

2016

Journal of Low Frequency Noise, Vibration and Active Control

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In this work, soundproof systems for the acoustic correction of large spaces, such as monumental churches, are studied. The Cathedral of Benevento is considered as a case study. Dated back to the seventh century, the church was destroyed during the Second World War and rebuilt in the mid-twentieth century, using marble for the floor and smooth plaster for the side walls. In the current state, the cathedral exhibits an excessive reverberation time (about 10 s) that causes poor understanding of speech and not good listening to musical performances. It is difficult to perform any form of acoustic correction inside the cathedral, since the walls and the ceiling cannot be covered with traditional soundabsorbing material due to architectural and aesthetic reasons. Therefore, the possibility of using ceramic material applied to the side walls for the acoustic correction of low-frequency components and transparent micro-perforated sheets placed under the ceiling for the acoustic correction of medium-and high-frequency components are considered. The work is divided into three phases: in the first phase, measurement of the current acoustic characteristics of the cathedral is performed. In the second phase, sound absorption material is investigated and in the third phase, the effects of insertion of soundproof systems on the acoustic characteristics of the cathedral are theoretically evaluated by means of a room acoustic software.

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Acoustic evaluation of the cathedral of Seville as a concert hall and proposals for improving the acoustic quality perceived by listeners

Cited by 36 publications

References 21 publications

Calculation Models for Acoustic Analysis of St. Elizabeth of Hungary Church in Jaworzno Szczakowa

Calculation Models for Acoustic Analysis of St. Elizabeth of Hungary Church in Jaworzno Szczakowa

Room acoustic modelling of textile materials hung freely in space: from the reverberation chamber to ancient churches

Acoustic correction of monumental churches with ceramic material: The case of the Cathedral of Benevento (Italy)

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