digital$5–10used in 1 side quest

Sound level meter app (calibrated)

A smartphone app that measures noise levels accurately, usually within 2–3 decibels of professional equipment. Paid apps include calibration features that free versions lack.

What to look for

  1. 1Calibration option using known reference sound or manual offset adjustment
  2. 2A and C frequency weighting modes for different measurement standards
  3. 3Data export or logging capability to track readings over time
  4. 4Display shows both current and max/min levels

Skip

  • Apps claiming professional accuracy for free—physics requires calibration
  • Apps without weighting options (A/C)—you can't compare to standards

Used for: mapping neighborhood noise levels · documenting sound environments · learning acoustic awareness · comparing quiet and loud zones

Side quests that use it

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