Voice Evaluation And Optimization Of Chengdu Huanhuaxi Park

Based on the knowledge of landscape architecture and environmental psychology,this paper objectively measures the sound level of Wanshu Mountain,Canglang Lake and Egret Island scenic spots in Huanhuaxi Park by means of on-site investigation,questionnaire survey and data analysis.Subjective assessment of body sound environment was conducted.Summarize the deficiencies in the construction of sound landscape in Huan Huaxi Park,and give targeted suggestions for optimization.The study concluded the following conclusions:Field sound level measurements show that the sound levels in the three areas of Huanhuaxi Park are relatively close,with an average value of 42.92-45.33 d B,belonging to the comfort zone.In addition to the sound of tourists,the main sound for cicadas and other natural sounds,combined with a large area of green space,can let visitors feel relaxed physically and mentally.By comparing the three regions,it is found that the order of sound level from high to low is Wanshu Mountain,Egret Island and Canglang Lake.The overall sound level of the park is similar,in which Canglang Lake is relatively quiet in the whole park,while Wanshushan scenic area is more lively.Subjective evaluation is divided into semantic analysis evaluation and harmony landscape index evaluation.Semantic analysis and evaluation results show that the whole Huanhuaxi Park tends to be quiet,natural,close to the acoustic environment characteristics.Among them,Canglang Lake and Bailuzhou Scenic Area had the highest semantic evaluation score of "quiet".Wanshu Mountain Scenic Area had the highest score of "natural" and Bailuzhou Scenic Area had "quiet".However,the satisfaction of all tourists to the sound landscape environment was low.After the principal component analysis of the three scenic spots and the extraction of the main factors affecting the acoustic environment,it is found that each scenic spot has extracted four principal components,and its composition index has similar components but is not entirely the same.The whole area's soundscape environment is characterized by large regional unification and small area characteristics.Aiming at the shortcomings of the sound landscape in Huanhuaxi Park,this paper summarizes the overall methods of sound landscape optimization in three areas of Huanhuaxi Park,which are: weakening the negative sound,strengthening the existing pleasant sound landscape,and combining with its own characteristics to increase the characteristic sound landscape.