I'm using [Android IP Webcam][1] as a sound sensor to monitor environmental noise levels in an interior room.  It is outputting values in the 135-230 dB range where ~135 dB is dead-of-night, everything off, and ~230 is loud action scene in a movie being played.  I need to convert these values to something meaningful for [common loudness levels][2].  What formula should be used to make that conversion?


  [1]: https://play.google.com/store/apps/details?id=com.pas.webcam&hl=en_US
  [2]: https://myhealth.alberta.ca/Health/Pages/conditions.aspx?hwid=tf4173#targetText=Normal%20conversation%20is%20about%2060,such%20as%20earplugs%20or%20earmuffs.