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Initial release
Measure noise in decibels. dB meter with graph, min / avg / max and history
Sound Meter measures how loud it is around you, in decibels (dB), using your phone's microphone. ■ Real-time decibel meter • Big, easy-to-read dB value and gauge • Min / average / max (energy average, like a real meter) • 60-second level graph • Peak frequency (Hz) • "About as loud as…" everyday comparison ■ Noise level guide From rustling leaves (20 dB) to a jet engine (120 dB). A warning appears above 85 dB. ■ History & sharing • Save measurements with min / avg / max and duration • Share the meter as an image ■ Settings • Calibration (±0.5 dB steps) to match a reference meter • Fast / slow response • Keep the screen on while measuring Audio is analysed on your device only — nothing is recorded or sent. Readings are estimates from your phone's microphone and vary by device. Not a certified sound level meter.