From worship space to auditorium: Acoustic design and experimental analysis of sound absorption systems for the new auditorium of San Francesco al Prato in Perugia (Italy).
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| Title: | From worship space to auditorium: Acoustic design and experimental analysis of sound absorption systems for the new auditorium of San Francesco al Prato in Perugia (Italy). |
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| Authors: | Buratti, C.1 (AUTHOR) cinzia.buratti@unipg.it, Belloni, E.1 (AUTHOR), Merli, F.1 (AUTHOR), Ambrosi, M.2 (AUTHOR), Shtrepi, L.3 (AUTHOR), Astolfi, A.3 (AUTHOR) |
| Source: | Applied Acoustics. Mar2022, Vol. 191, pN.PAG-N.PAG. 1p. |
| Subjects: | Absorption of sound, Sound design, Reverberation time, Sound systems, Architectural acoustics, Experimental design, Auditoriums |
| Geographic Terms: | Perugia (Italy) |
| Abstract: | • Acoustic performance of S. Francesco al Prato in Perugia church (Italy) from worship to auditorium. • Four experimental campaigns for the evaluation of the main acoustic indexes. • Measured data were used to validate a simulation model by means of Ramsete program. • Laboratory characterization of samples for the design of sound absorptive canopies. • Final average Reverberation Time and C 80 values are 1.96 s and −0.5 dB respectively. In the present paper the design and the ante- and post-operam experimental analysis of the acoustic performance of the church of San Francesco al Prato in Perugia (Italy) are presented and discussed within the framework of a long process of design and construction. During its refurbishment (2012–2020) and its transformation from worship to auditorium, the authors carried out four experimental campaigns for the evaluation of the main acoustic indexes (Reverberation Time and Clarity Index). Measured data were used to validate four simulation models (one for each experimental campaign) by means of Ramsete software for the prediction of the acoustic behavior of the auditorium and for the design of the indoor finishes. A laboratory experimental campaign in a small-scaled reverberation room was carried out for the characterization and the design of the sound absorptive canopies hanged over the ceiling, which represent the acoustic "dominant" layer, especially at medium frequencies, where the room needed the most significant correction. A total number of 20 canopies (perforated resonant systems with rock wool inside) were installed, for a total surface area of about 180 m2; together with the plaster and the 514 armchairs, they played an important role in reducing the Reverberation Time. The acoustic quality indexes gradually approached to their optimal values for music listening during the works period: the average Reverberation Time passes from a value of 4.56 s ante-operam to a value of 1.96 s post-operam; C 80 passes from a mean value of −4 dB to about −0.5 dB. The first values are in line with the ones of other churches with the same volume found in the Literature, whereas the second ones are within the optimal ranges for music listening. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Acoustics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 155694124 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: From worship space to auditorium: Acoustic design and experimental analysis of sound absorption systems for the new auditorium of San Francesco al Prato in Perugia (Italy). – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Buratti%2C+C%2E%22">Buratti, C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> cinzia.buratti@unipg.it</i><br /><searchLink fieldCode="AR" term="%22Belloni%2C+E%2E%22">Belloni, E.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Merli%2C+F%2E%22">Merli, F.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ambrosi%2C+M%2E%22">Ambrosi, M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shtrepi%2C+L%2E%22">Shtrepi, L.</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Astolfi%2C+A%2E%22">Astolfi, A.</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Acoustics%22">Applied Acoustics</searchLink>. Mar2022, Vol. 191, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Absorption+of+sound%22">Absorption of sound</searchLink><br /><searchLink fieldCode="DE" term="%22Sound+design%22">Sound design</searchLink><br /><searchLink fieldCode="DE" term="%22Reverberation+time%22">Reverberation time</searchLink><br /><searchLink fieldCode="DE" term="%22Sound+systems%22">Sound systems</searchLink><br /><searchLink fieldCode="DE" term="%22Architectural+acoustics%22">Architectural acoustics</searchLink><br /><searchLink fieldCode="DE" term="%22Experimental+design%22">Experimental design</searchLink><br /><searchLink fieldCode="DE" term="%22Auditoriums%22">Auditoriums</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Perugia+%28Italy%29%22">Perugia (Italy)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: • Acoustic performance of S. Francesco al Prato in Perugia church (Italy) from worship to auditorium. • Four experimental campaigns for the evaluation of the main acoustic indexes. • Measured data were used to validate a simulation model by means of Ramsete program. • Laboratory characterization of samples for the design of sound absorptive canopies. • Final average Reverberation Time and C 80 values are 1.96 s and −0.5 dB respectively. In the present paper the design and the ante- and post-operam experimental analysis of the acoustic performance of the church of San Francesco al Prato in Perugia (Italy) are presented and discussed within the framework of a long process of design and construction. During its refurbishment (2012–2020) and its transformation from worship to auditorium, the authors carried out four experimental campaigns for the evaluation of the main acoustic indexes (Reverberation Time and Clarity Index). Measured data were used to validate four simulation models (one for each experimental campaign) by means of Ramsete software for the prediction of the acoustic behavior of the auditorium and for the design of the indoor finishes. A laboratory experimental campaign in a small-scaled reverberation room was carried out for the characterization and the design of the sound absorptive canopies hanged over the ceiling, which represent the acoustic "dominant" layer, especially at medium frequencies, where the room needed the most significant correction. A total number of 20 canopies (perforated resonant systems with rock wool inside) were installed, for a total surface area of about 180 m2; together with the plaster and the 514 armchairs, they played an important role in reducing the Reverberation Time. The acoustic quality indexes gradually approached to their optimal values for music listening during the works period: the average Reverberation Time passes from a value of 4.56 s ante-operam to a value of 1.96 s post-operam; C 80 passes from a mean value of −4 dB to about −0.5 dB. The first values are in line with the ones of other churches with the same volume found in the Literature, whereas the second ones are within the optimal ranges for music listening. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Acoustics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.apacoust.2022.108683 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Absorption of sound Type: general – SubjectFull: Sound design Type: general – SubjectFull: Reverberation time Type: general – SubjectFull: Sound systems Type: general – SubjectFull: Architectural acoustics Type: general – SubjectFull: Experimental design Type: general – SubjectFull: Auditoriums Type: general – SubjectFull: Perugia (Italy) Type: general Titles: – TitleFull: From worship space to auditorium: Acoustic design and experimental analysis of sound absorption systems for the new auditorium of San Francesco al Prato in Perugia (Italy). Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Buratti, C. – PersonEntity: Name: NameFull: Belloni, E. – PersonEntity: Name: NameFull: Merli, F. – PersonEntity: Name: NameFull: Ambrosi, M. – PersonEntity: Name: NameFull: Shtrepi, L. – PersonEntity: Name: NameFull: Astolfi, A. IsPartOfRelationships: – BibEntity: Dates: – D: 30 M: 03 Text: Mar2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 0003682X Numbering: – Type: volume Value: 191 Titles: – TitleFull: Applied Acoustics Type: main |
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