没入型聴覚ディスプレイ装置を用いた音場シミュレータの開発

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  • Development of a Sound-Field Simulation System Based on Boundary-Surface Control Principle
  • ボツニュウガタ チョウカク ディスプレイ ソウチ オ モチイタ オンジョウ シミュレータ ノ カイハツ

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In this paper, we present the development of a three-dimensional sound-field simulator based on the boundary-surface control (BoSC) principle. The BoSC system consists of an 80-ch fullerene-shaped microphone array and an immersive sound reproduction system mounted with 96-ch loudspeakers, referred to as a 'Sound Cask'. Because the Sound Cask allows listeners to move their head, it provides high-performance sound localisation, thus high acoustic reality compared to the conventional sound reproduction system. As one useful application of the BoSC system, a sound-field simulator system is proposed, in which a musician can play a musical instrument inside the system to achieve the feeling of a concert-hall-like space. We introduce the system configurations and design methods, and perform experimental studies to confirm the applicability of the system.

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