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A comparison of the temporal weighting of annoyance and loudness.
MedLine Citation:
PMID:  20000930     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The influence of single temporal portions of a sound on global annoyance and loudness judgments was measured using perceptual weight analysis. The stimuli were 900-ms noise samples randomly changing in level every 100 ms. For loudness judgments, Pedersen and Ellermeier [J. Acoust. Soc. Am. 123, 963-972 (2008)] found that listeners attach greater weight to the beginning and ending than to the middle of a stimulus. Qualitatively similar weights were expected for annoyance. Annoyance and loudness judgments were obtained from 12 listeners in a two-interval forced-choice task. The results demonstrated a primacy effect for the temporal weighting of both annoyance and loudness. However, a significant recency effect was observed only for annoyance. Potential explanations of these weighting patterns are discussed. Goodness-of-fit analysis showed that the prediction of annoyance and loudness can be improved by allowing a non-uniform weighting of single temporal portions of the signal, rather than assuming a uniform weighting as in measures like the energy-equivalent level (L(eq)). A second experiment confirmed that the listeners were capable of separating annoyance and loudness of the stimuli. Noises with the same L(eq) but different amplitude modulation depths were judged to differ in annoyance but not in loudness.
Authors:
Kerstin Dittrich; Daniel Oberfeld
Publication Detail:
Type:  Journal Article    
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 Dec 
Date Detail:
Created Date:  2009-12-16     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:  3168-78     Citation Subset:  IM    
Affiliation:
Department of Psychology, Johannes Gutenberg-Universitat Mainz, 55099 Mainz, Germany. dittrich@psychologie.uni-freiburg.de
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