Level dominance for the detection of changes in level distribution in sound streams | Zendy

Virginia M. Richards | Zendy; Yi Shen | Zendy; Charles Chubb | Zendy

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Level dominance for the detection of changes in level distribution in sound streams

Author(s) -

Virginia M. Richards,

Yi Shen,

Charles Chubb

Publication year - 2013

Publication title -

the journal of the acoustical society of america

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.619

H-Index - 187

eISSN - 1520-8524

pISSN - 0001-4966

DOI - 10.1121/1.4813591

Subject(s) - tone (literature) , contrast (vision) , dominance (genetics) , observer (physics) , acoustics , sound (geography) , distribution (mathematics) , mathematics , variance (accounting) , statistics , computer science , physics , mathematical analysis , art , biochemistry , literature , accounting , quantum mechanics , artificial intelligence , business , gene , chemistry

Sound streams were generated by randomly choosing the levels of tone pips from two different distributions, A and B. Of the 18 tone pips, the first nine were drawn from distribution A and the second nine from distribution B, or the opposite. The listeners' task was to indicate order, A-B or B-A. In two conditions the A and B distributions differed in mean (condition 1) or variance (condition 2). In contrast to an ideal observer, listeners' strategies were consistent across the two conditions. Analyses suggest that listeners relied primarily on the more intense tone pips in making their decisions.

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