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

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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-IACC E3 ] versus reflection azimuth.

Original languageEnglish
Pages (from-to)EL272-EL276
Number of pages5
JournalJournal of the Acoustical Society of America
Issue number4
Publication statusPublished - 16 Apr 2019


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