Sound Meter: Decibel Meter
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Measure sound levels with a live dB meter, graph, timer and saved history
- Downloads
- 38+
- on Google Play
- Price
- Free
- No in-app purchases
- Updated
- Sep 18
- 2026 · v1.0.3
Screenshots
About Sound Meter: Decibel Meter
Turn your phone into a practical sound level meter for everyday checks.
Sound Meter uses the device microphone to estimate the surrounding sound level in decibels. Watch changes in real time, compare minimum, average (Leq) and maximum values, and follow the last 60 seconds on a clear graph.
Real-time measurement
• Live estimated dB reading
• Smooth gauge and 60-second chart
• Minimum, average (Leq) and maximum values
• Pause, resume and timed measurements
Calibration and history
• Adjust calibration against a trusted reference meter
• Save measurements with optional names
• Review previous sessions and clipping warnings
• Share a clean summary image with statistics and chart
Privacy by design
Microphone samples are processed temporarily in memory and discarded immediately after the numeric level is calculated. Sound Meter does not save recordings, raw audio or waveforms. Saved history contains numeric measurement results only.
Important limitations
Phone microphones vary between devices and are not designed as certified measuring instruments. Results are estimates affected by the microphone, device processing and calibration. Do not use Sound Meter for occupational, legal, medical, professional or safety-critical decisions.
Sound Meter uses the device microphone to estimate the surrounding sound level in decibels. Watch changes in real time, compare minimum, average (Leq) and maximum values, and follow the last 60 seconds on a clear graph.
Real-time measurement
• Live estimated dB reading
• Smooth gauge and 60-second chart
• Minimum, average (Leq) and maximum values
• Pause, resume and timed measurements
Calibration and history
• Adjust calibration against a trusted reference meter
• Save measurements with optional names
• Review previous sessions and clipping warnings
• Share a clean summary image with statistics and chart
Privacy by design
Microphone samples are processed temporarily in memory and discarded immediately after the numeric level is calculated. Sound Meter does not save recordings, raw audio or waveforms. Saved history contains numeric measurement results only.
Important limitations
Phone microphones vary between devices and are not designed as certified measuring instruments. Results are estimates affected by the microphone, device processing and calibration. Do not use Sound Meter for occupational, legal, medical, professional or safety-critical decisions.
What’s new
Version 1.0.3 · Updated September 18, 2026
First release of Sound Meter. Measure estimated sound levels in real time, view minimum, average and maximum values, follow the 60-second graph, use timers and calibration, save sessions and share results.