Document Detail


Evaluating signal-to-noise ratios, loudness, and related measures as indicators of airborne sound insulation.
MedLine Citation:
PMID:  19739735     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Subjective ratings of the audibility, annoyance, and loudness of music and speech sounds transmitted through 20 different simulated walls were used to identify better single number ratings of airborne sound insulation. The first part of this research considered standard measures such as the sound transmission class the weighted sound reduction index (R(w)) and variations of these measures [H. K. Park and J. S. Bradley, J. Acoust. Soc. Am. 126, 208-219 (2009)]. This paper considers a number of other measures including signal-to-noise ratios related to the intelligibility of speech and measures related to the loudness of sounds. An exploration of the importance of the included frequencies showed that the optimum ranges of included frequencies were different for speech and music sounds. Measures related to speech intelligibility were useful indicators of responses to speech sounds but were not as successful for music sounds. A-weighted level differences, signal-to-noise ratios and an A-weighted sound transmission loss measure were good predictors of responses when the included frequencies were optimized for each type of sound. The addition of new spectrum adaptation terms to R(w) values were found to be the most practical approach for achieving more accurate predictions of subjective ratings of transmitted speech and music sounds.
Authors:
H K Park; J S Bradley
Related Documents :
10473905 - Did auditory sensitivity and vocalization evolve independently in otophysan fishes?
3223295 - Dynamic auditory localization: perceived position of a moving sound source.
19384705 - Time-frequency analysis of foetal heart sound signal for the prediction of prenatal ano...
19626925 - The shape of nuclear falls and their effect on the perception of pitch and prominence: ...
9803155 - Knee joint motion: description and measurement.
19483255 - The influence of fascicle behavior on the lack of velocity dependence in eccentric join...
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  126     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2009 Sep 
Date Detail:
Created Date:  2009-09-10     Completed Date:  2009-12-07     Revised Date:  2010-04-28    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1219-30     Citation Subset:  IM    
Affiliation:
Chonnam National University, Gwangju 500-757, Korea. [corrected]
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Acoustic Stimulation
Auditory Perception*
Emotions
Humans
Loudness Perception*
Music*
Noise*
Psychoacoustics
Regression Analysis
Speech*
Speech Perception
Comments/Corrections
Erratum In:
J Acoust Soc Am. 2010 Feb;127(2):1165

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Acoustic simulations of Mudejar-Gothic churches.
Next Document:  A k-space method for acoustic propagation using coupled first-order equations in three dimensions.