A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information
The paper presents an innovative approach for the index assessment of the acous- tic properties of churches. A new formula for an approximate single number index to assess selected acoustic parameters of church interiors, such as reverberation time (RT), speech intelligibility index (RASTI) and m...
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| Format: | Article |
| Language: | English |
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Institute of Fundamental Technological Research Polish Academy of Sciences
2013-10-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/164 |
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| _version_ | 1849467260281815040 |
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| author | Krzysztof KOSAŁA |
| author_facet | Krzysztof KOSAŁA |
| author_sort | Krzysztof KOSAŁA |
| collection | DOAJ |
| description | The paper presents an innovative approach for the index assessment of the acous-
tic properties of churches. A new formula for an approximate single number index
to assess selected acoustic parameters of church interiors, such as reverberation time
(RT), speech intelligibility index (RASTI) and music clarity index (C80), is presented
in the paper. The formula is created by means of the Singular Value Decomposition
(SVD) method. An innovative approach for calculating the weights of partial in-
dices is shown by solving the problem of redundant information, i.e., the system of
overdetermined linear equations, using a computed pseudoinverse matrix. The new
procedures for calculating the values of three partial indices and the single number
index to assess selected acoustic parameters are presented. The proposed method
was verified by measurements in several selected churches. |
| format | Article |
| id | doaj-art-63fa2c897d4647d18e53fcd0125c7ea1 |
| institution | Kabale University |
| issn | 0137-5075 2300-262X |
| language | English |
| publishDate | 2013-10-01 |
| publisher | Institute of Fundamental Technological Research Polish Academy of Sciences |
| record_format | Article |
| series | Archives of Acoustics |
| spelling | doaj-art-63fa2c897d4647d18e53fcd0125c7ea12025-08-20T03:27:43ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-10-01363A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant InformationKrzysztof KOSAŁA0AGH University of Science and Technology Department of Mechanics and VibroacousticsThe paper presents an innovative approach for the index assessment of the acous- tic properties of churches. A new formula for an approximate single number index to assess selected acoustic parameters of church interiors, such as reverberation time (RT), speech intelligibility index (RASTI) and music clarity index (C80), is presented in the paper. The formula is created by means of the Singular Value Decomposition (SVD) method. An innovative approach for calculating the weights of partial in- dices is shown by solving the problem of redundant information, i.e., the system of overdetermined linear equations, using a computed pseudoinverse matrix. The new procedures for calculating the values of three partial indices and the single number index to assess selected acoustic parameters are presented. The proposed method was verified by measurements in several selected churches.https://acoustics.ippt.pan.pl/index.php/aa/article/view/164acoustic qualityindex methodsacral objectsSingular Value Decompo- sition (SVD)redundant information |
| spellingShingle | Krzysztof KOSAŁA A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information Archives of Acoustics acoustic quality index method sacral objects Singular Value Decompo- sition (SVD) redundant information |
| title | A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information |
| title_full | A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information |
| title_fullStr | A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information |
| title_full_unstemmed | A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information |
| title_short | A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information |
| title_sort | single number index to assess selected acoustic parameters in churches with redundant information |
| topic | acoustic quality index method sacral objects Singular Value Decompo- sition (SVD) redundant information |
| url | https://acoustics.ippt.pan.pl/index.php/aa/article/view/164 |
| work_keys_str_mv | AT krzysztofkosała asinglenumberindextoassessselectedacousticparametersinchurcheswithredundantinformation AT krzysztofkosała singlenumberindextoassessselectedacousticparametersinchurcheswithredundantinformation |