Document Detail


Is it 6 decibels? The effect of pressure doubling on exterior to interior transmission loss values.
MedLine Citation:
PMID:  20331084     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
When calculating sound levels inside a building due to external sources, should some value be added to the expected sound level? ATSM E966 recommends adding 6 dB to this level. It has been theorized that this is due to pressure doubling. The effect of pressure doubling on the calculated exterior to interior sound transmission in the direct field is, however, often misunderstood. Most texts on the subject simply list a 5- or 6-dB correction factor that is applied to the transmission loss value. The reasoning of this particular number is neither expounded upon nor explained. This paper investigates and explains this correction factor.
Authors:
Noel Hart; Kimberly Lefkowitz; Arno S Bommer; Robert D Bruce
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  127     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2010-03-24     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2003     Citation Subset:  IM    
Affiliation:
CSTI Acoust., P.O. Box 218808, Houston, TX 77218-8808, noel@cstiacoustics.com.
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