Perceptual Evaluation of Spatial Audio Quality
With rapid development in multimedia devices, realistic spatial audio is of interest. In this paper, we discuss how to evaluate realistic audio experience and then to determine major perceptual attributes to deliver realistic audio experience to listeners. We propose eight attributes in the three categories such as ‘timbre’, ‘localization’ and ‘spaciousness.’ Each perceptual attribute is evaluated by subjective listening tests using different surround reproduction systems including 10.2 and 22.2 channel systems. The experimental results show which spatial audio attribute is influential for realistic audio experience and which attribute is difficult to reproduce by using current reproduction systems.
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