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Development of a 64-Channel Spherical Microphone Array and a 122-Channel Loudspeaker Array System for 3D Sound Field Capturing and Reproduction Technology Research

In this paper we present our recent activities on building facilities to drive research and development on 3D sound field capturing and reproduction. We developed a 64-channel spherical microphone array, the ViReal Mic, and a 122-channel loudspeaker array system, the ViReal Dome. The ViReal Mic is a microphone array whose microphone capsules are mounted on a rigid sphere, with the positions determined by the spherical Fibonacci spiral. The ViReal Dome is a loudspeaker array system consisting of 122 active coaxial loudspeakers. We present the details of the developed systems and discuss directions of future research.


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