In this study the effects of head-tracking and HRTF individualization by subjective selection on localization and width perception of widen-processed sources in VR were investigated. Localization test and the perceived width evaluation were conducted under conditions with or without head-tracking and using individualized or non-individual HRTF. For the perceived width evaluation, monophonic signals were processed by a method proposed in previous studies, which aimed to create spatial extent for sound objects in the binaural synthesis. According to the results, head-tracking not only was effective to improve localization accuracies in localization test, but also could help synthesized source widths to be localized more accurately. No difference in perceived width was found under different conditions.
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