BASIC CONSIDERATIONS ON EVALUATION OF THE COMBINED ENVIRONMENT OF ENVIRONMENTAL SOUND, AMBIENT TEMPERATURE AND ILLUMINANCE : A relationship between specific evaluation and non-specific evaluation

Abstract

This study discussed the combined effect of sound, ambient temperature and illuminance on the evaluation of the environment in a room. Since there are many environmental factors in a room, the non-specific image of the combined environment was measured in this study. Subjects evaluated the combined environment of eight kinds of sounds, two levels of temperature (19, 24℃ (SET^*)) and two levels of illuminance (5,530(lx)) on seven-points bipolar scales of 23 adjectives by Semantic Differential Technique. Sutjects were 21 male students. The result of factor analysis was different from Izumi et al. (1983) which discussed the specific impression of sound. It was suggested that the difference between them is caused by the difference between non-specific and specific evaluation of sound. Since plural factors have significant effects on every evaluation, it was suggested that even in the case of the study on the specific evaluation, the other environmental factors should be recorded.