People's subjective and physiological responses to the combined thermal-acoustic environments

Effects of sound types and sound levels on subjective environmental evaluations in different seasons

“…Although they did not study the interaction between sound types and sound levels, there were still had some consistencies between the results of their work and this study. In terms of sound levels, the results of this study and previous work [16,17,22,23,34] both showed that for some sound sources, the TCV, ACV and OCV at the low sound level were significantly higher than those at the high sound level.…”

“…In this study, the questionnaire method was used to explore the subjective evaluations of the subjects under different environmental conditions. As shown in Table 4, Owing to the comprehensive consideration of the questionnaire content of previous studies [17,18,23] In this study, a 7-point Likert scale was used to explore the subjective evaluations accurately. However, the options 'very hot' and 'very cold' were added to the TSV to reflect extreme weather conditions in winter and summer in severe cold regions, respectively.…”

“…The average values were ranked as follows: fan noise＜babble sound＜water sound＜music, and when the sound types were water sound and music, the average values of the evaluation were relatively close. Guan et al [23] indicated that at the same sound level, the TCV, ACV, and OCV in a musical environment were better than those in a noisy environment. Thus, it was seen that music was beneficial to the improvement in comfort vote-a result which was consistent with the results of this study.…”

“…Yang and Moon revealed that the effects of sound types and sound levels on thermal comfort were significant [22]. Guan et al found that thermal comfort, acoustic comfort, and overall comfort were better in a music sound environment than in a noisy environment with the same sound pressure level [23]. These studies were all carried out in the controllable indoor environment; however, there was a lack of related studies on the outdoor environment.…”

A new quantitative measure of occupants’ overall satisfaction for indoor physical environmental quality

“…Actually, some other aspects, for example, humidity, air velocity, type of noise, gender, clothing or participants’ activity, would also influence the human perception. For example, after choosing two sound types (music of 70BPM, the noise of fan) in research, Guan et al 62 found that sound types had an impact on acoustic comfort and music acoustic comfort was better than noise; Tiller et al 45 found that females rated lower temperatures colder than males, and higher temperatures more pleasant than males. It was one of our limitations to neglect the effects of these factors.…”