The application of a noise-rating scale composed of hue-scale and L{sub}(Aeq) on various kinds of noise sources for noise map

摘要

In addition to reporting the results of measurements of existing environmental noise and the results of calculations of noise from projected activities, the application of color for representing in terms of noise zones may be useful (ISO 1996-2). Between color and noise, in spite of differences, there exist an interaction, although the connection between the visible and the audible expression is subjective. Subjectivity can in a given moment become objective, if one succeed in unifying the visible and the audible. The purpose of the present study is to investigate in more detail the "hue" noise-rating scale for noise mapping. Allowing for the color perception (the adaptation, the constancy, the simultaneous contrast, the successive contrast and the assimilation etc.), a computer display (a black background) and thirty-four sheets of colored paper on a white background were used. Each relation between the hue-level expressing the psychological effect (annoyance) and L{sub}(Aeq(5min))[dB] of typical noise sources was discussed in a laboratory experiment.