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The relationship between the in situ flanking sound reduction index and the laboratory measured flanking normalized level difference.

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Title: The relationship between the in situ flanking sound reduction index and the laboratory measured flanking normalized level difference.
Authors: Mahn, Jeffrey1 (AUTHOR) jeffrey.mahn@nrc-cnrc.gc.ca, Müller-Trapet, Markus1 (AUTHOR)
Source: Building Acoustics. Dec2023, Vol. 30 Issue 4, p409-424. 16p.
Subjects: Statistical energy analysis, Normalized measures, Lightweight construction, Steel framing, Regulatory compliance, Medical laboratories
Abstract: From Gerretsen's 1979 Applied Acoustics paper through four series of standards including ISO 12354 and ISO 10848, a significant amount of effort has gone into creating a standardized prediction method that uses standardized laboratory measured values to predict the apparent sound reduction index to demonstrate compliance with regulations. The terms and equations in the prediction method have evolved over time as researchers have evaluated the results of the prediction method, especially in the case of lightweight constructions for which statistical energy analysis is not well suited. To reflect the changes to other equations in the prediction method over the past 40 years, this paper suggests an update to the relationship in ISO 12354-1 between the in situ flanking sound reduction index and the laboratory measured flanking normalized level difference. The suggested changes are of importance for Type B elements such as timber and steel framed walls and floors for which the prediction of flanking transmission according to ISO 12354 requires the measurement of the level difference in laboratory flanking facilities. [ABSTRACT FROM AUTHOR]
Copyright of Building Acoustics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: The relationship between the in situ flanking sound reduction index and the laboratory measured flanking normalized level difference.
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  Data: <searchLink fieldCode="AR" term="%22Mahn%2C+Jeffrey%22">Mahn, Jeffrey</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jeffrey.mahn@nrc-cnrc.gc.ca</i><br /><searchLink fieldCode="AR" term="%22Müller-Trapet%2C+Markus%22">Müller-Trapet, Markus</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Building+Acoustics%22">Building Acoustics</searchLink>. Dec2023, Vol. 30 Issue 4, p409-424. 16p.
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  Data: <searchLink fieldCode="DE" term="%22Statistical+energy+analysis%22">Statistical energy analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Normalized+measures%22">Normalized measures</searchLink><br /><searchLink fieldCode="DE" term="%22Lightweight+construction%22">Lightweight construction</searchLink><br /><searchLink fieldCode="DE" term="%22Steel+framing%22">Steel framing</searchLink><br /><searchLink fieldCode="DE" term="%22Regulatory+compliance%22">Regulatory compliance</searchLink><br /><searchLink fieldCode="DE" term="%22Medical+laboratories%22">Medical laboratories</searchLink>
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  Label: Abstract
  Group: Ab
  Data: From Gerretsen's 1979 Applied Acoustics paper through four series of standards including ISO 12354 and ISO 10848, a significant amount of effort has gone into creating a standardized prediction method that uses standardized laboratory measured values to predict the apparent sound reduction index to demonstrate compliance with regulations. The terms and equations in the prediction method have evolved over time as researchers have evaluated the results of the prediction method, especially in the case of lightweight constructions for which statistical energy analysis is not well suited. To reflect the changes to other equations in the prediction method over the past 40 years, this paper suggests an update to the relationship in ISO 12354-1 between the in situ flanking sound reduction index and the laboratory measured flanking normalized level difference. The suggested changes are of importance for Type B elements such as timber and steel framed walls and floors for which the prediction of flanking transmission according to ISO 12354 requires the measurement of the level difference in laboratory flanking facilities. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Building Acoustics is the property of Sage Publications Inc. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1177/1351010X231206240
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      – Code: eng
        Text: English
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      – SubjectFull: Statistical energy analysis
        Type: general
      – SubjectFull: Normalized measures
        Type: general
      – SubjectFull: Lightweight construction
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      – SubjectFull: Steel framing
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      – SubjectFull: Regulatory compliance
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      – SubjectFull: Medical laboratories
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              M: 12
              Text: Dec2023
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