- Tytuł:
- A Single Number Index to Assess Selected Acoustic Parameters in Churches with Redundant Information
- Autorzy:
- Kosała, K.
- Powiązania:
- https://bibliotekanauki.pl/articles/177017.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
acoustic quality
index method
sacral objects
singular value decomposition (SVD)
redundant information - Opis:
- 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.
- Źródło:
-
Archives of Acoustics; 2011, 36, 3; 545-560
0137-5075 - Pojawia się w:
- Archives of Acoustics
- Dostawca treści:
- Biblioteka Nauki
Artykuł