Study On The Effects Of Music On Human Comfort And Work Efficiency Under Noisy Environment

The indoor environment of the building directly affects people’s life,work and st udy.With the rapid development of the economy,various industries have put forward higher requirements for the work efficiency of office workers.As an important part of the building’s indoor environment,the acoustic environment has an important impact on the comfort and efficiency of indoor personnel.The building envelope structure ca n block the influence of external noise on the indoor environment to a certain extent,b ut can not completely eliminate the noise pollution in the city,such as the driving nois e in the traffic environment and the construction noise in the outdoor environment.Es pecially for buildings with poor sound insulation,noise can even become the primary factor affecting the comfort of the indoors.In addition,the noise generated by commu nication and communication between indoor personnel is more difficult to avoid.Ther efore,taking measures to eliminate the effects of different noises is essential to impro ve the annoyance comfort of the indoor personnel and improve their working efficienc y.Based on the subjective and objective response parameters of indoor personnel,t his paper conducts experimental research on various noise environments from psychol ogical and physiological aspects.Firstly,explore the effects on the comfort and worki ng efficiency of indoor personnel through experiments in different noise environments.Secondly,adding music in the noise background to compare the comfort and working efficiency of the personnel with that in pure noise environment,and further exploring the feasibility of using different music factors to improve the noise environment.Fina lly,propose the most suitable combination of music factors in various noise environm ents based on the comparison of the two groups of experimental results.The main rese arch contents of this paper are as follows:(1)Exploring the influence of different noise types and different noise sound pre ssure levels on human Acoustic Sensation,Acoustic Comfort and Annoyance Sensatio n,finding low to medium level(45-60dB)crowd noise and medium to high level(60-75dB)traffic noise have the greatest adverse effect on human subjective sound comfo rt;and medium and low level noise environments can be superimposed by simultaneo us sound pressure level,slow or medium rhythm(80、 110BPM)to improve the subj ective feelings of the human body,and in high-level noise environment,adding music will have an adverse effect;(2)Through the measurement of objective physiological parameters,the changes of heart rate and blood pressure of different genders in various noise environments we re studied,and the physiological differences between male and female in noisy enviro nment were compared.The results show that increasing the noise level will increase t he heart rate of the human body,and the physiological balance adjustment will lower t he blood pressure,and women will be more sensitive to the noise;superimposing the l ow-level(45,60dB)music can make the physiological parameters in a favorable direc tion changes,but high levels(75dB)music can cause discomfort in the body;(3)Based on the evoked potential theory(BAEP),the I,III and V waveform late ncy of BAEP in noise environment are analyzed to determine the stress of different pa rts of the auditory pathway.It is concluded that the construction noise has the greatest impact on human auditory nerve and is easy to induce auditory fatigue.The changes o f tone BPM and sound pressure level have a greater impact on I,III and V waves of BAEP.Low level,medium rhythm(45dB,110BPM)music can effectively improve t he auditory nerve fatigue;(4)The memory and cognition ability of the person in the noise environment is te sted.Through the correct rate of the test result and the test time,the influence of vario us noises on the work efficiency is judged,and the improvement effect after superimp osing the music is compared.The results show that the medium level(60dB)traffic no ise and the high level(75dB)crowd noise are the most accurate for the personnel test accuracy rate and the test time,and the corresponding best improvement schemes are superimposed 75 dB sound pressure level,medium rhythm(110BPM)and slow rhyth m(80BPM)music.