An advanced multichannel audio system for reproducing a live sound field with ultimate sensation of presence has been studied for reproducing the sound field without any restrictions on the listening points. This system also aims to give audiences the optimum natural impression of presence and reality according to their listening point, and to be applicable to live transmission and broadcasting. This paper introduces the experimental sound system and describes in detail the recording techniques and latest subjective evaluation experiments to evaluate the appropriateness of necessary conditions of the new sound system. This paper also discusses the advantages of the new sound system regarding the impression of presence and interactivity compared with conventional multichannel audio systems.
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