Narrow Frequency Range Problem of Sound Reflector Arrays

• Authors: A. Szeląg , J. Rubacha , T. Kamisiński
• Languages of publication: EN

Abstracts

EN

Overhead stage canopies composed of many panels suspended under ceiling provide proper acoustic field in concert halls and auditoria. The purpose of using these structures is adequate direction and partial dispersion of sound reflected from them. Frequency range of sound reflected from flat panels closely depends on their shape, size and configuration. It is often too narrow and therefore insufficient for the proper sound of the interior. Mutual dependence of the lower and upper frequency limit of sound transmission requires the search for other ways to improve these structures. The paper proposes some solutions concerning spatial structures which have not been yet defined. An attempt was made to determine the useful frequency band of sound transmitted through such reflective structures.

Keywords

EN

43.55.-n; 43.20.El

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 123
• Issue: 6
• Pages: 1059-1063

Dates

published

2013-06

Contributors

author

A. Szeląg

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Mechanics and Vibroacoustics, al. A. Mickiewicza 30, 30-059 Krakow, Poland

author

J. Rubacha

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Mechanics and Vibroacoustics, al. A. Mickiewicza 30, 30-059 Krakow, Poland

author

T. Kamisiński

• AGH - University of Science and Technology, Faculty of Mechanical Engineering and Robotics Department of Mechanics and Vibroacoustics, al. A. Mickiewicza 30, 30-059 Krakow, Poland

References

• [1] M. Skålevik, IOA Conference on Auditorium Acoustics, Copenhagen 2006
• [2] M. Skålevik, ICA 07 Proc., Madrid 2007, p.
• [3] V.O. Knudsen, R.W. Leonard, L.P. Dekasso, J. Acoust. Soc. Amer. 36, 1010 (1964)
• [4] J.H. Rindel, Appl. Acoust. 34, 7 (1991)
• [5] T. Kamisiński, A. Polaczek, J. Rubacha, Mech. Contr. 29, 174 (2010)
• [6] Y. Ando, Architectural Acoustics, Springer Verlag, New York 1998
• [7] M. Skålevik, Joint Baltic-Nordic Acoustics Meeting, Gothenburg 2006, BNAM2006-1
• [8] T. Kamisiński, A. Szeląg, J. Rubacha, Archiv. Acoust. 37, 213 (2012)
• [9] T. Kamisiński, K. Brawata, A. Pilch, J. Rubacha, M. Zastawnik, Archiv. Acoust. 37, 317 (2012)

Identifiers

DOI

10.12693/APhysPolA.123.1059