“Sound Cask” - A new dimension of the sound reproduction based on the boundary surface control -

The sound reproduction system based on the boundary surface control principle makes possible a physically close sound reproduction and has a high performance of spatial reproduction such as sound localization and sound distance. Based on these features, we have researched and developed a 3-D sound field sharing system in order to make possible a deeper level of telecommunication through music. We need space large enough for a musical performance with the sound reproduction system and real-time convolution system for 3-D sound reproduction based on the boundary surface control principle. In this paper, we introduce a system architecture of 3-D sound field sharing system for musical performance, specifically a “Sound Cask” which serves as the basis for sound reproduction and has 96 loudspeakers installed omnidirectionaly.