3-D sound reproduction system for immersive environments based on the boundary surface control principle

  • Authors:

  • Seigo Enomoto;Yusuke Ikeda;Shiro Ise;Satoshi Nakamura

  • Affiliations:

  • Spoken Language Communication Group, National Institute of Information and Communications Technology, Keihanna Science City, Japan;Spoken Language Communication Group, National Institute of Information and Communications Technology, Keihanna Science City, Japan;Graduate School of Engineering, Department of Architecture and Architectural Engineering, Kyoto University, Kyoto, Japan;Spoken Language Communication Group, National Institute of Information and Communications Technology, Keihanna Science City, Japan

  • Venue:
  • Proceedings of the 2011 international conference on Virtual and mixed reality: new trends - Volume Part I
  • Year:
  • 2011

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Abstract

We constructed a 3-D sound reproduction system containing a 62-channel loudspeaker array and 70-channel microphone array based on the boundary surface control principle (BoSC). The microphone array can record the volume of the 3-D sound field and the loudspeaker array can accurately recreate it in other locations. Using these systems, we realized immersive acoustic environments similar to cinema or television sound spaces. We also recorded real 3-D acoustic environments, such as an orchestra performance and forest sounds, by using the microphone array. Recreated sound fields were evaluated by demonstration experiments using the 3-D sound field. Subjective assessments of 390 subjects confirm that these systems can achieve high presence for 3-D sound reproduction and provide the listener with deep immersion.