Abstract
The sense of presence is crucial for evaluating audio-visual equipments. To clarify the multidimensional structure of the sense, we conducted three experiments on audio, visual, and audio-visual content items. Forty scenes were recorded as content items. Each item was reproduced with a 65-inch display and headphones in three conditions of audio-only, visual-only and audio-visual. Twenty-one subjects evaluated the impression of each item using forty pairs of adjectives by the Semantic Differential method as well as its presence using a Likert scale. The experimental data was analyzed by the factor analysis and four, five and five factors were extracted for audio, visual, and audio-visual conditions, respectively. The multiple regression analysis revealed that audio and audio-visual presences were explained by the extracted factors, although further consideration is required for visual presence. These results indicated that the factors of psychological loading and activity are relevant for the sense of presence.
