STATISTICAL VERIFICATION OF THE REVERBERATION TIME MODELS IN SMALL BOX ROOMS

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Architecture, Civil Engineering, Environment

Silesian University of Technology

Subject: Architecture, Civil Engineering, Engineering, Environmental

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ISSN: 1899-0142

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VOLUME 9 , ISSUE 1 (March 2016) > List of articles

STATISTICAL VERIFICATION OF THE REVERBERATION TIME MODELS IN SMALL BOX ROOMS

Artur Nowoświat * / Marcelina Olechowska

Keywords : Box rooms, Reverberation time, Sabine’s model

Citation Information : Architecture, Civil Engineering, Environment. Volume 9, Issue 1, Pages 85-94, DOI: https://doi.org/10.21307/acee-2016-015

License : (BY-NC-ND 4.0)

Published Online: 09-August-2018

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ABSTRACT

The paper presents the results of measurements and theoretical calculations for little room models. Five room models have been prepared for analysis and they were placed in a chamber adopted as reverberationless. Measurements of reverberation time in these rooms were made in two variants; first in isotropic sound field, the second in the field disturbed by elements made of mineral wool. Then for all models in both variants theoretical calculations were made by means of three models: Neubeauer’s, Sabine’s, Eyring’s. All the results have been analysed by means of STATISTICA software and based on
them statistical inference of theoretical models was made against the measurements for little box rooms.

 

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REFERENCES

Sabine W.C.; Reverberation. The American Architect and the Engineering Record, 1900


Kuttruff H.; Room Acoustics. Ed. Applied Science,1979


PN-EN ISO 354:2005. Akustyka – Pomiar pochłaniania dźwięku w komorze pogłosowej (Acoustics – measuring sound absorption in a reverberation chamber)


Neubauer R.; Prediction of reverberation time in rectangular rooms with non-uniformly distributed absorption using a new formula. Congreso TecniAcústica, 2000


Neubauer R.; Estimation of reverberation time in rectangular rooms with non-uniformly distributed absorption using a modified Fitzroy equation. Proc.7th International Congress on Sound and Vibration, Germish-Partenkirchen, Germany, 2000


Neubauer R., Kostek B.; Prediction of the reverberation time in rectangular rooms with non-uniformly distributed sound absorption. Archives of Acoustics,Vol.26, No.3, 2001; p.183-202


Nowoświat A., Olechowska M., Ślusarek J.; Predictionof reverberation time using the residual minimization method. Applied Acoustics, 106, 2016, p.42-50

 

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