X-Media Galaxyにおける移動音像実現のための音像補間

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  • Sound Image Interpolation for Moving Sound Image Implementation in X-Media Galaxy
  • X-Media Galaxy ニ オケル イドウオンゾウ ジツゲン ノ タメ ノ オンゾウ ホカン

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We have developed an MR system that merges the real and virtual worlds both audibly and visually. To achieve the audio MR, we developed the "Acoustic Planetarium," which is composed of multiple parametric loudspeakers. In this paper, we propose a method to position moving sounds using this system. Firstly, in order to select the appropriate positioning method, we compared an energy sum constant method and an amplitude sum constant method, which interpolate the sound position between multiple sounds located by the parametric loudspeakers. We also used the full MR system, which uses both audio and visual information, to verify the accuracy in perception of the moving sound. In order to do so, we displayed a CG image at the origin of the sound with the help of a head mounted display. The results showed that the energy sum constant method was appropriate for the parametric loudspeaker and the accuracy of the perceived sound was adequate for the full MR system.

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