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Recalibration of Virtual Sound Localization Using Audiovisual Interactive Training

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In virtual auditory display, non-individual head-related transfer functions (HRTF) of KEMAR result in localization degradation. This work investigates the efficacy of audiovisual interactive training as to the recalibration of such localization degradation. First, an audiovisual interactive training system consisting of control module, binaural virtual sound module, and vision module, was constructed. Then, ten subjects were divided into a control group and a training group, and underwent three-day training and localization tests. Results indicate that in the horizontal plane, the localization accuracy of azimuth is significantly improved with training and the front-back confusion is also reduced; however, in the median plane a three-day short-term training has no significant improvement on the localization accuracy of elevation.

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