Mechanical soundscape of Bi Ya Di Apt: it is located at Jiang Ling Road. At noon of weedend, the dominant sound here is car sound and life sound. Many cars pass by and make endless noise, mixed with mild life sound and bird singing.   

 Surrounding main wildlife:  bird. 

 Acoustic characteristics of weekday: LAeq is between 60~70dBA.The sound changes regularly with time. It is dominated by middle-high frequency sounds which fluctuate evidently. There is a difference in hearing between the left and right ears, reflecting the sound has a certain direction.