Q1. What are the contributions in this paper?
This paper describes 4 Participatory Soundscape Sensing ( PSS ), a worldwide soundscape investigation and 5 evaluation project. The authors describe the calibration method for sound pressure levels ( SPL ) 6 measured by mobile phone, analyze the PSS ’ s data temporal-spatial distribution 7 characteristics, and discuss the impact of the participants ’ age and gender on the data quality. 8 Furthermore, the authors analyze the sound comfort level relationships with each class of land use, 9 sound sources, subjective evaluation, sound level, sound harmoniousness, gender, and age 10 using over a year of shared data. The authors suggest that the 19 crowdsourcing data with participatory sensing will provide a new perspective in soundscape 20 investigation, evaluation, and planning. The results suggest that PSS has distinct advantages in 11 enhancing the amount and coverage of soundscape data.