DocumentCode
1610564
Title
Numerical estimation of acoustic properties in enclosures of simple shape
Author
Shanin, Andrey V. ; Shabalina, Elena D.
Author_Institution
Dept. of Phys., Moscow State Univ., Moscow
fYear
2007
Firstpage
125
Lastpage
130
Abstract
A 2-D model of a rectangular room with an open window is studied. In such a room the acoustic field is not diffuse even for high frequencies. Instead, it displays modal properties in the whole frequency band. For high frequency some modes have a high Q-factor, and thus the solution of a harmonic excitation problem has a rapid and unpredictable dependence on frequency. To suppress this dependence, a procedure of averaging in the frequency domain is proposed. An algorithm of calculation of reverberation time is described.
Keywords
acoustic wave propagation; architectural acoustics; numerical analysis; reverberation; acoustic field; acoustic property numerical estimation; harmonic excitation problem; modal properties; open window; rectangular room 2D model; reverberation; simple enclosure acoustical propertyies; Acoustic diffraction; Acoustical engineering; Displays; Frequency domain analysis; Hydrogen; Physics; Q factor; Reverberation; Shape; State estimation;
fLanguage
English
Publisher
ieee
Conference_Titel
Days on Diffraction, 2007 International Conference
Conference_Location
St. Petersburg
Print_ISBN
5-9651-0118-X
Type
conf
DOI
10.1109/DD.2007.4532002
Filename
4532002
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