Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers
Echo and sound resonance in a conference room cause obscure speech and make listeners tired. Thus, the acoustical properties of a conference room are vitally important. The conference room 412 at Sharif University Physics Department failed to meet basic acous...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/472524 |
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| _version_ | 1832552867559374848 |
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| author | Hossein Namvar Arefi Seyyed Mohammad Amin Ghiasi Seyyede Mahshid Ghaffari Farhad Ramezanghorbani Shiva Sharifpour Peyman Irajizad Seyede Delaram Ghoreishi Langroudi Ahmad Amjadi |
| author_facet | Hossein Namvar Arefi Seyyed Mohammad Amin Ghiasi Seyyede Mahshid Ghaffari Farhad Ramezanghorbani Shiva Sharifpour Peyman Irajizad Seyede Delaram Ghoreishi Langroudi Ahmad Amjadi |
| author_sort | Hossein Namvar Arefi |
| collection | DOAJ |
| description | Echo and sound resonance in a conference room cause obscure speech and make listeners tired.
Thus, the acoustical properties of a conference room are vitally important.
The conference room 412 at Sharif University Physics Department failed to meet basic acoustical standards.
The aim of this research is to improve reverberation time (RT) of the conference room using Helmholtz resonators with defined dimensions,
diffusers, and sound absorbers. Helmholtz resonators are widely used to absorb sound noise especially at low frequencies.
They are particularly useful when noise has a narrow-frequency band. One of the advantages of using Helmholtz resonators is their capacity to be tuned on different frequencies.
We enhanced acoustical properties of Helmholtz resonators using proper absorbers and diffusers.
In order to decrease the RT, a large number of Helmholtz resonators have been made and installed in proper positions in the conference room.
The RT was measured before and after installation. The measurements indicate that the acoustical characteristics of the conference room have been significantly improved. |
| format | Article |
| id | doaj-art-89fae556d57a429bb034b07f5131fc7e |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-89fae556d57a429bb034b07f5131fc7e2025-02-03T05:57:34ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/472524472524Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with AbsorbersHossein Namvar Arefi0Seyyed Mohammad Amin Ghiasi1Seyyede Mahshid Ghaffari2Farhad Ramezanghorbani3Shiva Sharifpour4Peyman Irajizad5Seyede Delaram Ghoreishi Langroudi6Ahmad Amjadi7Audiology Department, Tehran University of Medical Sciences, Mirdamad Street, Tehran 1348715459, IranPhysics Department, Sharif University of Technology, Azadi Street, Tehran 111558639, IranPhysics Department, Sharif University of Technology, Azadi Street, Tehran 111558639, IranPhysics Department, Sharif University of Technology, Azadi Street, Tehran 111558639, IranPhysics Department, Sharif University of Technology, Azadi Street, Tehran 111558639, IranPhysics Department, Sharif University of Technology, Azadi Street, Tehran 111558639, IranPhysics Department, Sharif University of Technology, Azadi Street, Tehran 111558639, IranPhysics Department, Sharif University of Technology, Azadi Street, Tehran 111558639, IranEcho and sound resonance in a conference room cause obscure speech and make listeners tired. Thus, the acoustical properties of a conference room are vitally important. The conference room 412 at Sharif University Physics Department failed to meet basic acoustical standards. The aim of this research is to improve reverberation time (RT) of the conference room using Helmholtz resonators with defined dimensions, diffusers, and sound absorbers. Helmholtz resonators are widely used to absorb sound noise especially at low frequencies. They are particularly useful when noise has a narrow-frequency band. One of the advantages of using Helmholtz resonators is their capacity to be tuned on different frequencies. We enhanced acoustical properties of Helmholtz resonators using proper absorbers and diffusers. In order to decrease the RT, a large number of Helmholtz resonators have been made and installed in proper positions in the conference room. The RT was measured before and after installation. The measurements indicate that the acoustical characteristics of the conference room have been significantly improved.http://dx.doi.org/10.1155/2014/472524 |
| spellingShingle | Hossein Namvar Arefi Seyyed Mohammad Amin Ghiasi Seyyede Mahshid Ghaffari Farhad Ramezanghorbani Shiva Sharifpour Peyman Irajizad Seyede Delaram Ghoreishi Langroudi Ahmad Amjadi Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers Shock and Vibration |
| title | Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers |
| title_full | Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers |
| title_fullStr | Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers |
| title_full_unstemmed | Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers |
| title_short | Conference Room Reverberation Time Correction Using Helmholtz Resonators Lined with Absorbers |
| title_sort | conference room reverberation time correction using helmholtz resonators lined with absorbers |
| url | http://dx.doi.org/10.1155/2014/472524 |
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