The analysis and research on the factors of sound annoyance in the operating environment

A-weighted level is the main method to evaluate the noise. The method of noise evaluation has some drawbacks because it can not include all kinds of sound and all factors which affects the work efficiency of operators. The sound includes music and song, language, the nature sound and noise, which have different effect on the work efficiency of operators. The factors effecting human annoyance include the kind of sound, special sound, A-weighted level, the different operating environment, the sound relationship with operators and so on. In the paper, the sound factors effecting human annoyance would be found and analyzed and their validity would be analyzed through some examples. Through these factors and their weights, the value of annoyance on some noise can be got which can be used to control the sound of operating environment and improve the work efficiency of operators