Influence of the Design of Transmission Rooms on the Sound Transmission Loss of Glass--Intensity Versus Conventional Method

Cops, A.; Minten, M.; Myncke, H.

doi:10.3397/1.2827683

Cited by 17 publications

(24 citation statements)

References 4 publications

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“…Concerning reproducibility, significant differences can be observed in the sound reduction index when measured in different laboratories, especially at low frequencies [3,4,5,6].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Repeatability and Reproducibility of Laboratory Sound Insulation Measurements

Dijckmans

Vermeir²

2013

Acta Acustica united with Acustica

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An extensive parametric study has been carried out with a wave based model to numerically investigate the fundamental repeatability and reproducibility of labo- elements, the reproducibility of the intensity method is better. For heavy walls and lightweight double constructions, however, the predicted uncertainty is similar for the three measurement methods. The results of the reproducibility study are also used to investigate systematic differences between the pressure method and both intensity methods.

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“…Concerning reproducibility, significant differences can be observed in the sound reduction index when measured in different laboratories, especially at low frequencies [3,4,5,6].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Repeatability and Reproducibility of Laboratory Sound Insulation Measurements

Dijckmans

Vermeir²

2013

Acta Acustica united with Acustica

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“…2 (M) ¼ / R (x M ,y M ) and the modal expansion ofp 2 [Eq. (5)] in the resulting equation, one ends up with…”

Section: E Equations Of the Coupled Systemmentioning

confidence: 99%

“…1,2 Several experimental studies revealed that the values of STL depend on the location of the sample in the tunnel. [3][4][5][6][7] For subcoincidence frequencies, a lower STL is achieved when the sample is located in the middle position along the tunnel depth compared to the case without tunnel or compared to the case where the sample is flush mounted at one end of the tunnel. The STL is also affected by the lateral size and the depth of the tunnel.…”

mentioning

confidence: 99%

Prediction of the niche effect for single flat panels with or without attached sound absorbing materials

Sgard

Atalla

Nélisse

2015

The Journal of the Acoustical Society of America

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The sound transmission loss (STL) of a test sample measured in sound transmission facilities is affected by the opening in which it is located. This is called the niche effect. This paper uses a modal approach to study the STL of a rectangular plate with or without an attached porous material located inside a box-shaped niche. The porous material is modeled as a limp equivalent fluid. The proposed model is validated by comparison with finite element/boundary element computations. Using a condensation of the pressure fields in the niche, the niche effect is interpreted in terms of a modification of the modal blocked pressure fields acting on the panel induced by the front cavity and by a modification of the radiation efficiency of the panel modes due to the presence of the back cavity. The modal approach is then used to investigate the impact of (1) the presence of a porous material attached to the panel on the niche effect and (2) the niche effect on the assessment of the porous material insertion loss. A simplified model for the porous material based on a transfer matrix approach is also proposed to predict the STL of the system and its validity is discussed.

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“…This paper was reprinted in the Noise Control Engineering [33] . There were some researchers to develop relevant study subsequently [34][35][36][37] . R.E.Halliwell et al compared the sound intensity method to the sound pressure method under different measurement conditions.…”

Section: The Development Of the Sound Insulation Measurement Usingmentioning

confidence: 99%

The summary of techniques on the airborne sound insulation measurement

Cai

Zhao

2011

2011 International Conference on Electric Technology and Civil Engineering (ICETCE)

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This paper indicates that there are some shortcomings in the traditional sound pressure method for sound insulation measurement, such as sound leakage, flanking transmission and the low signal-noise-ratio. And then the impulse and sound intensity measuring methods are introduced. The progress of the sound intensity methods is also illustrated. In combination with environmental quality for noise in the national evaluation standard for green building, the prospect of applying the sound intensity method for sound insulation measuring on green buildings is presented.

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Influence of the Design of Transmission Rooms on the Sound Transmission Loss of Glass--Intensity Versus Conventional Method

Cited by 17 publications

References 4 publications

Numerical Investigation of the Repeatability and Reproducibility of Laboratory Sound Insulation Measurements

Numerical Investigation of the Repeatability and Reproducibility of Laboratory Sound Insulation Measurements

Prediction of the niche effect for single flat panels with or without attached sound absorbing materials

The summary of techniques on the airborne sound insulation measurement

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