The decay rate of sound within large enclosures depends on air humidity and temperature. This phenomenon must be taken into account in most problems of architectural acoustics; generally, the measurement data obtained in actual humidity and temperature conditions should be normalized to standard con
A time series approach on reverberation of large enclosures
β Scribed by Dimitris Skarlatos
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 462 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0003-682X
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β¦ Synopsis
ABSTRA CT
A new method based on Box-Jenkins time series models is proposed for the description of the reverberation of large enclosures instead of reverberation time. The calculations of the proposed statistical method are based on measurements taken inside a room under the condition of continuous excitation by a series of random noise events. The evaluation of the room's memory is an application of the method
π SIMILAR VOLUMES
This paper is concerned with the applicability of a time series model for the separation of the rej7ected noise energy by rough reflecting surfaces into diffuse and geometrically reflected noise. For the derivation of the theoretical model a combination of theory of geometrical acoustics and statist
OOn-4686/92s5.w+OO.w Q 1991.F%f@monFwa pkz. B H Z RIS r\* s T V. V" magnetic flux density Hurst exponent [the slope of the experimental log (R/S) us log(s) diagram] current density resealed range in the Hurst analysis [equation (3)] autocorrelation function [equation (6)] time lag an arbitrary time