Determination of Measurement Uncertainties in Building Acoustics by Interlaboratory Tests. Part 1: Airborne Sound Insulation

2015 ◽  
Vol 101 (1) ◽  
pp. 88-98 ◽  
Author(s):  
Volker Wittstock
Keyword(s):  
Sound Insulation ◽  
Airborne Sound ◽  
Measurement Uncertainties ◽  
Building Acoustics

scholarly journals IMPLEMENTATION OF LABORATORY MEASUREMENT OF AIRBORNE SOUND INSULATION BASED ON ISO AND ASTM STANDARDS IN NATIONAL STANDARDIZATION AGENCY OF INDONESIA (BSN)

2021 ◽  
Vol 23 (1) ◽  
pp. 77
Author(s):  
Bondan Dwisetyo ◽  
Maharani Ratna Palupi ◽  
Fajar Budi Utomo ◽  
Chery Chaen Putri ◽  
Dodi Rusjadi ◽  
...  
Keyword(s):  
Transmission Loss ◽  
Laboratory Measurement ◽  
Sound Insulation ◽  
Reference Curve ◽  
Airborne Sound ◽  
Significant Difference ◽  
Single Number ◽  
Sound Reduction ◽  
Reduction Index

<p>The implementation of laboratory measurement of airborne sound insulation based on ISO and ASTM standards was carried out at SNSU BSN. The aim of this work to realize the measurement of airborne sound insulation for several sample tests, where the procedure of the test is performed according to the updated standard ISO 10140 and ASTM E90. Besides, the single number rating also is determined based on ISO 717-1 and ASTM E413. This measurement has been conducted in the two reverberation rooms using pressure method consist of measuring the sound pressure level, measuring the reverberation time, obtaining the sound reduction index (R) or sound transmission loss (STL), and determination of a single-number ratings of the samples test. From the results, some parameter requirements such as the frequency range and the rounding procedure of R or STL influence the measurement result slightly. Subsequently, the significant difference is obtained for the determination of single number rating in the shifting procedure of the reference curve.</p>

scholarly journals Determination of the Airborne Sound Insulation of a Straw Bale Partition Wall

2017 ◽  
Vol 13 (1) ◽  
pp. 20-29 ◽  
Author(s):  
Jiří Teslík ◽  
Radek Fabian ◽  
Barbora Hrubá
Keyword(s):  
Sound Insulation ◽  
Partition Wall ◽  
Airborne Sound ◽  
University Of Technology ◽  
Wide Range ◽  
Scientific Project ◽  
Sound Reduction ◽  
Straw Bale ◽  
Reduction Index

AbstractThis paper describes the results of a scientific project focused on determining of the Airborne Sound Insulation of a peripheral non-load bearing wall made of straw bales expressed by Weighted Sound Reduction Index. Weighted Sound Reduction Index was determined by measuring in the certified acoustic laboratory at the Faculty of Mechanical Engineering at Brno University of Technology. The measured structure of the straw wall was modified in combinations with various materials, so the results include a wide range of possible compositions of the wall. The key modification was application of plaster on both sides of the straw bale wall. This construction as is frequently done in actual straw houses. The additional measurements were performed on the straw wall with several variants of additional wall of slab materials. The airborne sound insulation value has been also measured in separate stages of the construction. Thus it is possible to compare and determinate the effect of the single layers on the airborne sound insulation.

Analysis of Predictive Calculation Methods of Airborne Sound Insulation

2016 ◽  
Vol 835 ◽  
pp. 573-578 ◽  
Author(s):  
Naďa Zdražilová ◽  
Denisa Donová ◽  
Iveta Skotnicova
Keyword(s):  
Acoustic Properties ◽  
Sound Insulation ◽  
Building Structures ◽  
Calculation Methods ◽  
Airborne Sound ◽  
Mutual Comparison ◽  
Sound Reduction ◽  
Reduction Index

Acoustic properties of building structures are currently very actual theme with regard to the development of new building and insulating materials, while the methods for estimating the airborne sound reduction index evolve mainly from the second half of the 20th century. For mutual comparison of selected prediction methods and for determination of their suitability it has been provided a calculation of weighted sound reduction index RW [dB] from the input parameters of materials identified by laboratory measurements, calculation of weighted apparent sound reduction index R ́W [dB] and these values were compared with in-situ measurements. The aim of this paper is to determine the most appropriate method to calculate RW [dB] and R ́W [dB] values of lightweight building constructions with regard to their practical applicability, accuracy of estimation and complexity of the calculations.

Uncertainty determination of in situ airborne sound insulation measurements

2015 ◽  
Vol 89 ◽  
pp. 199-210 ◽  
Author(s):  
María Machimbarrena ◽  
Carolina Rodrigues A. Monteiro ◽  
Stefano Pedersoli ◽  
Reine Johansson ◽  
Sean Smith
Keyword(s):  
Sound Insulation ◽  
Airborne Sound ◽  
Uncertainty Determination
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