Noise pollution
MEASURE THE CITY ROAR
Your microphone becomes a decibel meter; the barometer reads atmospheric pressure (with live API fallback).
🔊 NOISE METER
Live microphone reading. Tap start, the city map will record your spot's noise flag.
Now
—dB
Avg
—dB
Peak
—dB
20406080100120 dB
🌡 Barometer
Tap Start — uses device sensor if present, otherwise live Open-Meteo data for your location.
- • <40 dB — Quiet (library)
- • 60–75 dB — Moderate (conversation/traffic)
- • 85+ dB — Hearing damage with prolonged exposure