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Subjective Experiments on the Effects of Combining Spatialized Audio and 2D Video Projection in Audio-visual Systems

When in an audio-visual system spatialized audio reproduction is combined with 2D video projection this has effects on the resulting audio-visual experience of observers. Specifically, a mismatch between perceived auditory and visual source directions may occur for observers that are not in the ideal viewpoint of the video projection. Subjective experiments were carried out to investigate the effects in the context of a life-size video conferencing system. Results show that the non-identical perspectives of the audio and video reproductions indeed have a significant influence on subjects' evaluation of the total system. Solutions are proposed to improve the matching of the audio and video scenes for a large listening area.

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