室内照明と第三者の存在が会話音量に与える影響

概要

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The purpose of this study is to clarify effects of lighting and the existence of a stranger on conversational sound levels. The first experiment was to let subjects estimate the sound level from photo stimuli and then the second was to measure conversational sound levels in the laboratory where experimental variables; three lighting conditions and the existence of a stranger were implemented. It was shown that the conversational sound level was higher in the highly illuminated areas (e.g. general lighting) more than in the areas where there was low illunination (e.g. candle lighting). The results in the localized lighting (e.g. spot lighting) depended on the score of the Locus of Control scale. The subjects who were internally controlled tended to speak more loudly than the subjects who were externally controlled. As a whole, the existence of a stranger made the conversational sound level lower with the exception of the subjects who were internally controlled in the localized lighting.
2002-05-30