A common approach used to map soundscapes is through quantitative methods, such as using a
survey-grade sound meter. However, these methods have been deemed insufficient in interpreting
and identifying the complexity of soundscapes. To deal with this problem, the authors
incorporated a method that uses participatory data collection to record the quantitative
measurements such as sound level. The perceived level of annoyance (PLA) of the sound based on
the individual's perspective was also used through this research. An open-source crowdsourcing
sound map is created where users can upload sound recordings, images, and feedback related to
the soundscape of that particular location. The study area is in Metro Manila.