Используйте приложение APKPure
Историческую версию Sound Meter PRO можно получить на Android
Приложение Sound Meter (SPL) измеряет и отображает шум окружающей среды в децибелах.
Sound Level Meter or SPL is app for measuring environmental noise and showing value in decibels. The values are displayed on the gauge and in the graph plot.
Feature:
-Realtime dB display
-Min/Max/Avg values
-Realtime gauge
-Live graph plot
-Indicator
NOTE:
This app does not claim to be accurate as approved Sound Level Meter. Its accuracy depends on yours device in-built microphone quality!