A Study of the Roles of Sound Effects in Video Expression

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  • 映像表現における効果音の役割に関する研究
  • エイゾウ ヒョウゲン ニ オケル コウカオン ノ ヤクワリ ニ カンスル ケンキュウ

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The purpose of this study is to consider qualitatively the roles of background music and sound effects in video expression, by evaluating video works created by college students as an assignment. First, the works that received the highest evaluation were those with sounds that suitably matched the video images, so we examined the importance of sound effects in video expressions. A qualitative analysis of video scenes that greatly moved the audience revealed two key factors, namely, clarity of the story development of the scenario and proper timing of music/sound effects. The message conveyed by camera work is related to the flow of video images. To give a clear message through the video images, therefore, the visual expressions should clearly present the messages and be accompanied by suitable music/sound effects. It was also suggested that the effective combination of images and sounds can enable the video work to move the audience. In the future, we plan to examine in further detail combinations of sound effects and camera work, i.e., what images should be taken with what kind of camera angle, as well as the importance of timing.

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