In order to obtain in-situ evaluation of real daily living environment, it is necessary to treat plural environmental factors synthetically and to get both the non-specific evaluation (i.e. the universal comfort/discomfort) and the specific evaluation (i.e. the thermal comfort, the auditory, and the like) for each factor. In this study, twenty-nine male students were exposed to the combined twenty-five conditions of noise (46.8, 59.2,73.1,80.0,95.4LAeq) and operative temperature (27,30,33,36,39℃). The subjects reported their feelings for each combined condition using linear unipolar scales. Results show thermal conditions affect both of noisy/quiet sensations and auditory comfort/discomfort significantly. It is obvious that the combined effect of temperature and noise contribute to the universal comfort and discomfort sensation. Equi-comfort and equi-discomfort charts are proposed to quantitatively evaluate the combined effects of the thermal and noise environment in this experiment.
