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Title Background noise requirements and audience noise in performance spaces
Author Marie, Pierre
Supervisor Jeong, Cheol-Ho (Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Brunskog, Jonas (Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark)
Petersen, Claus Møller (Grontmij | Carl Bro. Glostrup, DK)
Institution Technical University of Denmark, DTU, DK-2800 Kgs. Lyngby, Denmark
Thesis level Master's thesis
Year 2009
Abstract Nowadays, in the acoustic design of performance spaces the trend is to set speci cations for background noise levels very low. However, the solutions in order to comply to this specications can aect the cost of the overall project substantially. It the noise produced by the audience during a performance was considered, the specications for background noise could be set to less stringent levels. A method has been developed for determining the noise produced by the audience during a performance. Digital recordings of performances are taken in four performance spaces: Malmo Koncerthuset, Odense Carl Nielsen Salen, Copenhagen Operaen and Snderborg Alsion Koncertsalen. After processing the recorded data, the performances sound pressure level probability density functions are incured and the noise produced by the audience can be identied from it. It is shown that when a hall is fully occupied the noise produced by the audience is signicantly larger than the background noise in the midfrequency part of the spectrum. Thus, the design criterion in used nowadays turn out to be too stringent if the noise produced by the audience is taken into account. Multiple linear regression analysis is used to develop several empirical models to predict the audience noise from dierent known parameters like, for example, the volume of the room, the number of audience, the background noise in the unoccupied room, or the reverberation time.
Imprint Technical University of Denmark (DTU) : Kgs. Lyngby, Denmark
Pages 123
Fulltext
Original PDF MScThesis_PierreMarie_Final.pdf (10.61 MB)
Admin Creation date: 2009-11-23    Update date: 2009-11-23    Source: dtu    ID: 252869    Original MXD