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J Audiol Otol > Epub ahead of print
DOI: https://doi.org/10.7874/jao.2019.00248    [Epub ahead of print] Published online November 22, 2019.
Towards Size of Scene in Auditory Scene Analysis: A Systematic Review
Chanbeom Kwak1,2  , Woojae Han1,2,3 
1Laboratory of Hearing and Technology, College of Natural Sciences, Hallym University, Chuncheon, Korea
2Division of Speech Pathology and Audiology, College of Natural Sciences, Hallym University, Chuncheon, Korea
3Research Institute of Audiology and Speech Pathology, College of Natural Sciences, Hallym University, Chuncheon, Korea
Correspondence  Woojae Han ,Tel: +82-33-248-2216, Fax: +82-33-256-3420, Email: woojaehan@hallym.ac.kr
Submitted: June 24, 2019  Accepted after revision: September 5, 2019
Abstract
Auditory scene analysis is defined as a listener’s ability to segregate a meaningful message from meaningless background noise in a listening environment. To gain better understanding of auditory perception in terms of message integration and segregation ability among concurrent signals, we aimed to systematically review the size of auditory scenes among individuals. A total of seven electronic databases were searched from 2000 to the present with related key terms. Using our inclusion criteria, 4,507 articles were classified according to four sequential steps–identification, screening, eligibility, included. Following study selection, the quality of four included articles was evaluated using the CAMARADES checklist. In general, studies concluded that the size of auditory scene increased as the number of sound sources increased; however, when the number of sources was five or higher, the listener’s auditory scene analysis reached its maximum capability. Unfortunately, the score of study quality was not determined to be very high, and the number of articles used to calculate mean effect size and statistical significance was insufficient to draw significant conclusions. We suggest that study design and materials that consider realistic listening environments should be used in further studies to deep understand the nature of auditory scene analysis within various groups.
Keywords: Auditory segregation · Sound localization · Numerosity of auditory scene · Study quality


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