照度および被験者の性格が騒音の評価に及ぼす影響

概要

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It is assumed that the assessed value of "noisiness" of sound is determined not only by the physical property of sound, but also by the visual property of stimuli and the personality of assessors (subjects). This paper reports and discusses on the experiment on perception (assessment) of sounds. The experiment was carried out as follows. 7 different types of sounds (60, 65, 70, 75, 80, 85, 90 dB(C) pink noise) were chosen as models in this experiment and each of them was accompanied with 3 different luminous intensities (0 lx, 100 lx, 500 lx,). So 21 stimuli (7 sounds×3 luminous intensities) were given to 12 subjects, who were made to listen to and evaluate the sounds in comparison with a standard stimulus (75 dB(C) white noise, 100 lx) by the Method of Magnitude Estimation. The following became clear concerning the influence of luminous intensity and personality of subject on the evaluation of sound. 1. No effect of luminous intensity is observed. 2. In regard to the personality of subjects, the assessed value of "noisiness" has no correlation with "introversion-extroversion" but has something of it with "neuroticism". However in case of the field evaluation of noise, there are many problems remaining unsolved.
明治大学の論文