Effect of passive whole-body rotation on sound localization accuracy of listener subjective straight ahead

This study investigated the effect of passive whole-body rotation on the accuracy of listener subjective straight ahead. Listeners sat on a digitally controlled spinning chair placed at the center of a circular loudspeaker array (radius = 1.1 m, speaker spacing = 2.5°) and were exposed to a single 3...

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Bibliographic Details
Published in:Acoustical Science and Technology 2020/01/01, Vol.41(1), pp.249-252
Main Authors: Honda, Akio, Masumi, Yoji, Suzuki, Yôiti, Sakamoto, Shuichi
Format: Article
Language:English
Subjects:
Accuracy
Angular velocity
Arrays
Listener movement
Localization
Multisensory integration
Rotating bodies
Rotation
Rotation speed
Sound localization
Sound source localization
Spatial hearing
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Summary:This study investigated the effect of passive whole-body rotation on the accuracy of listener subjective straight ahead. Listeners sat on a digitally controlled spinning chair placed at the center of a circular loudspeaker array (radius = 1.1 m, speaker spacing = 2.5°) and were exposed to a single 30-ms pink noise burst emitted from one loudspeaker of this array. Under the chair-still condition, listeners were asked to keep their head still, whereas under the chair-rotation condition, listeners were asked to keep their head still and their chairs were rotated at angular velocities of 5, 10, and 20°/s. In both cases, listeners judged whether the stimulus was presented from the right or left of the subjective straight ahead, and there was a significant decrease in the sound localization accuracies under the chair-rotation condition, while chair rotation speed had almost no effect on sound localization accuracy.
ISSN:1346-3969
1347-5177
DOI:10.1250/ast.41.249