Perceptual threshold of apparent source width in relation to the azimuth of a single reflection

An investigation into the perceptual threshold of apparent source width (ASW) in relation to a single reflection azimuth was performed in binaural reproduction. In the presence of a direct sound, subjects compared the ASW produced by a single 90° reference reflection against ASW produced by a test r...

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Bibliographic Details
Published inThe Journal of the Acoustical Society of America Vol. 145; no. 4; pp. EL272 - EL276
Main Authors Johnson, Dale, Lee, Hyunkook
Format Journal Article
LanguageEnglish
Published United States 01.04.2019
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Summary:An investigation into the perceptual threshold of apparent source width (ASW) in relation to a single reflection azimuth was performed in binaural reproduction. In the presence of a direct sound, subjects compared the ASW produced by a single 90° reference reflection against ASW produced by a test reflection with a varying angle for four reflection delay times between 5 and 30 ms. Threshold angles were found to be approximately 40° and 130°, and did not appear to be dependent on delay time. It was also found that these threshold angles were associated to saturation in [1-IACCE3] versus reflection azimuth.
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ISSN:0001-4966
1520-8524
1520-8524
DOI:10.1121/1.5096424