Acoustical simulation and optimization in Mosques.
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| Title: | Acoustical simulation and optimization in Mosques. |
|---|---|
| Authors: | Orfali, Wasim1 worfali@de.moe.gov.sa |
| Source: | Sound & Vibration. 2025, Vol. 59 Issue 6, p1-25. 25p. |
| Subjects: | Mosques, Great Mosque (Mecca, Saudi Arabia), Acoustic measurements, Intelligibility of speech, Acoustic reflection, Architectural acoustics, Noise pollution |
| Geographic Terms: | Mecca (Saudi Arabia) |
| Abstract: | This article discusses the assessment and optimization of speech intelligibility in the Grand Mosque in Makkah. It is the most iconic Islamic site in the world. Most of the surface material used is marble, which is considered to be a highly sound reflective material. Acoustic measurement of the current conditions (with a surface area of 85,000 m²) was conducted. A virtual model was used to obtain an optimum acoustical solution. The measurement and inspection of ambient acoustical data were conducted using the EASERA measuring tool, and as a result, late energy arrival (after 100 ms) was noticed; this forms echoes and decreases intelligibility. It was also noticed that the measured background noise levels were as high as 90 dB (A). High temperature and humidity degrade the quality of the ambient acoustical environment. A virtual model for the targeted areas (Massa roof and adjacent perimeter) was created using EASE simulation software. Mapping results showed a high level of intelligibility (0.6) and homogenous distribution of the sound pressure level (SPL) (max. variation 9 dB). Loudspeaker columns minimized late energy arrival. The "active" approach improved the ambient acoustical environment in the targeted area and eliminated the necessity of an expensive "passive treatment". [ABSTRACT FROM AUTHOR] |
| Copyright of Sound & Vibration is the property of Academic Publishing 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 | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 191637676 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Acoustical simulation and optimization in Mosques. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Orfali%2C+Wasim%22">Orfali, Wasim</searchLink><relatesTo>1</relatesTo><i> worfali@de.moe.gov.sa</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Sound+%26+Vibration%22">Sound & Vibration</searchLink>. 2025, Vol. 59 Issue 6, p1-25. 25p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Mosques%22">Mosques</searchLink><br /><searchLink fieldCode="DE" term="%22Great+Mosque+%28Mecca%2C+Saudi+Arabia%29%22">Great Mosque (Mecca, Saudi Arabia)</searchLink><br /><searchLink fieldCode="DE" term="%22Acoustic+measurements%22">Acoustic measurements</searchLink><br /><searchLink fieldCode="DE" term="%22Intelligibility+of+speech%22">Intelligibility of speech</searchLink><br /><searchLink fieldCode="DE" term="%22Acoustic+reflection%22">Acoustic reflection</searchLink><br /><searchLink fieldCode="DE" term="%22Architectural+acoustics%22">Architectural acoustics</searchLink><br /><searchLink fieldCode="DE" term="%22Noise+pollution%22">Noise pollution</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Mecca+%28Saudi+Arabia%29%22">Mecca (Saudi Arabia)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: This article discusses the assessment and optimization of speech intelligibility in the Grand Mosque in Makkah. It is the most iconic Islamic site in the world. Most of the surface material used is marble, which is considered to be a highly sound reflective material. Acoustic measurement of the current conditions (with a surface area of 85,000 m²) was conducted. A virtual model was used to obtain an optimum acoustical solution. The measurement and inspection of ambient acoustical data were conducted using the EASERA measuring tool, and as a result, late energy arrival (after 100 ms) was noticed; this forms echoes and decreases intelligibility. It was also noticed that the measured background noise levels were as high as 90 dB (A). High temperature and humidity degrade the quality of the ambient acoustical environment. A virtual model for the targeted areas (Massa roof and adjacent perimeter) was created using EASE simulation software. Mapping results showed a high level of intelligibility (0.6) and homogenous distribution of the sound pressure level (SPL) (max. variation 9 dB). Loudspeaker columns minimized late energy arrival. The "active" approach improved the ambient acoustical environment in the targeted area and eliminated the necessity of an expensive "passive treatment". [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Sound & Vibration is the property of Academic Publishing 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: 10.59400/sv3217 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 25 StartPage: 1 Subjects: – SubjectFull: Mosques Type: general – SubjectFull: Great Mosque (Mecca, Saudi Arabia) Type: general – SubjectFull: Acoustic measurements Type: general – SubjectFull: Intelligibility of speech Type: general – SubjectFull: Acoustic reflection Type: general – SubjectFull: Architectural acoustics Type: general – SubjectFull: Noise pollution Type: general – SubjectFull: Mecca (Saudi Arabia) Type: general Titles: – TitleFull: Acoustical simulation and optimization in Mosques. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Orfali, Wasim IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: 2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 15410161 Numbering: – Type: volume Value: 59 – Type: issue Value: 6 Titles: – TitleFull: Sound & Vibration Type: main |
| ResultId | 1 |
