This study considers the spatial sound reproduction requirements to reproduce environmental sounds in a subjectively natural manner. Recordings for this work were performed in six different sound environments, including different styles of musical performances and also other environmental sounds. Both Soundfield microphone and binaural techniques were used for these recordings. The recordings were processed for reproduction over seven different multichannel sound systems in a standard listening room, ranging from stereo to periphonic reproduction. A formal listening test was arranged employing 14 listeners to evaluate the naturalness of reproduction through these systems in a standard listening room. The results indicate that large number of reproduction channels is not always necessary to reproduce subjectively natural sound. This paper presents the results of the study.
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