title: Detection of Sound Image Movement During Horizontal Head Rotation.
abstract: Movement detection for a virtual sound source was measured during the listener's horizontal head rotation. Listeners were instructed to do head rotation at a given speed. A trial consisted of two intervals. During an interval, a virtual sound source was presented 60° to the right or left of the listener, who was instructed to rotate the head to face the sound image position. Then in one of a pair of intervals, the sound position was moved slightly in the middle of the rotation. Listeners were asked to judge the interval in a trial during which the sound stimuli moved. Results suggest that detection thresholds are higher when listeners do head rotation. Moreover, this effect was found to be independent of the rotation velocity.
authors.affiliation: Yamanashi Eiwa College, Yamanashi, Japan.
authors.forename: Akio
authors.initials: A
authors.lastname: Honda
authors.affiliation: Tohoku University, Sendai, Japan.
authors.forename: Kagesho
authors.initials: K
authors.lastname: Ohba
authors.affiliation: Tohoku Gakuin University, Miyagi, Japan.
authors.forename: Yukio
authors.initials: Y
authors.lastname: Iwaya
authors.affiliation: Tohoku University, Sendai, Japan.
authors.forename: Yôiti
authors.initials: Y
authors.lastname: Suzuki
keywords: active listening; rotation velocity; sound localization; virtual sound source