Noisecatcher

Noise Meter

Real-time noise level measurement using your device microphone.

Readings relative to your device — not calibrated SPL.

557085INACTIVEdB(A)0120
0 dB
−120+24

Audio recording is not supported in this browser.

To keep the screen on during measurement: Settings → Display & Brightness → Auto-Lock → Never. Restore after use.
Threshold monitor
dB(A)
min

55 dB(A) = EU END major annoyance threshold · 45 dB(A) = WHO Lnight residential

Audio clip at peak

When a new peak reading is set, a 15-second audio clip is recorded and attached to your session report. Audio is stored locally only — never transmitted. Opt-in only. For ECHR Art. 8 filings, a clip at the moment of exceedance significantly strengthens evidentiary value.

Multi-device session

Measure the same noise event from multiple phones simultaneously. Create a session and share the code with others nearby.

Import & Analyze

Drop audio file or click to browse

Import any audio recording to analyze its acoustic statistics, psychoacoustic profile, and get sound classification.

WHO Reference Thresholds
Safe054 dB
Caution5569 dB
Dangerous7084 dB
Critical85119 dB
Extreme120 dB