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New 10.2-Channel Vertical Surround System (10.2-VSS); Comparison Study of Perceived Audio Quality in Various Multichannel Sound Systems with Height Loudspeakers

This paper presents the listening test results of perceived audio quality with several loudspeaker arrangements in order to find the optimal configuration of loudspeakers for a next-generation multichannel sound system. We compare new reproduction formats with NHK 22.2-channel and 7.1-channel setup of Recommendation ITU-R BS.775-2. The subjective evaluations focused on the loudspeaker configurations at the top layer were carried out with test materials generated with different methods, by mixing, and by reproducing B-format recordings. The results show that the perceptual difference in the overall quality achieved with the new 10.2-channel vertical surround system with 3 top loudspeakers and the NHK 22.2-channel system was imperceptible in a grading scale used in the experiment.

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