Sound Meter: dB & Noise Level turns your Android phone into a simple decibel meter to measure environmental noise, track sound levels over time, and help you understand when it's time to protect your ears.
App Highlights:
- Measure real-time environmental noise in decibels (dB)
- Large analog-style dial displaying current, average, and maximum sound levels
- Sound level descriptions, from a quiet library to a busy restaurant
- Live sound chart showing the last 30 seconds of measurements
- Customizable loud-noise warnings with adjustable thresholds and duration
- Daily noise dose tracking based on the widely used 85 dB for 8 hours guideline
- A, C, and Z frequency weighting options
- Fast, Slow, and Impulse response modes
- Chart, bar graph, and frequency spectrum visualization options
- Automatic detection and marking of sudden loud sounds
- Microphone calibration with a reference meter or approximate reference level
Measurement & Monitoring:
- Continue measuring noise in the background
- Pause or stop measurements directly from the notification
- Start measurements using a Quick Settings tile or home-screen widget
- Full-screen traffic-light display with green, amber, and red indicators
- Large-number mode for viewing readings from across the room
- Monitor noise levels in homes, classrooms, offices, cafés, and other environments
Sessions, History & Reports:
- Save sound measurement sessions for future reference
- Review minimum, average, maximum, Leq, and noise dose statistics
- Review detected loud events within saved sessions
- Export detailed measurement reports as PDF
- Export raw measurement data as CSV
- Replay saved audio alongside its measurement chart when audio recording was enabled
- Jump directly to the loudest moment in a recorded session
- Weekly summaries showing your loudest day and nighttime noise patterns
Quiet Challenges:
- Try short challenges to keep noise below a chosen level
- Build consecutive-day streaks and collect badges
- Enjoy a simple way to encourage quieter environments and mindful listening
Personalization & Accessibility:
- Choose Classic, LED, or Minimal meter designs
- Select System, Instrument, or digital 7-segment number fonts
- Customize the accent colour or match your wallpaper
- Support for light and dark themes
- Accessibility support for TalkBack and large text
Your Sound Stays With You:
- Microphone access is required to measure environmental sound
- By default, the app measures loudness without saving audio recordings
- Audio recording is optional for sessions where you want playback
- Saved sessions and recordings remain on your device
- Your sound, sessions, and recordings are not uploaded by the app
Important Disclaimer:
Sound Meter: dB & Noise Level is an independent sound measurement and noise monitoring utility. It is intended for general informational purposes and personal use.
A smartphone microphone is not a certified sound level meter. Readings may vary depending on the device, microphone characteristics, operating conditions, and calibration. Measurements are estimates and should not be treated as certified acoustic measurements.
The daily noise dose indicator is an informational estimate based on the widely used 85 dB for 8 hours guideline. It is not a medical assessment or a guarantee of hearing safety. Actual hearing risk depends on sound level, exposure duration, and individual factors.
Do not rely on this app as a substitute for a calibrated Class 1 or Class 2 sound level meter when performing legal, regulatory, occupational, or workplace compliance measurements. Use appropriately calibrated professional equipment for those purposes.
Application Screenshots
Need Help?
Questions, feedback, or suggestions? Visit the built-in Help page in the app or contact us at devsground.help@gmail.com.
