Sound Meter - dB Noise Meter

Sound Meter is your all-in-one sound measurement and wellness tool for Android. Measure noise in real-time decibels (dB), test your hearing, relax with sleep sounds, and stay focused -- all in one app.

Whether you need a decibel meter for work, a noise checker for your area, or calming sounds for better sleep, this app has you covered.


[ SOUND METER - Professional dB Measurement ]

- Measure noise levels in real-time decibels (dB)
- 10 analog gauge styles: Basic, Classic, Neon, Minimal, Retro, Ocean, Sunset, Arctic, Carbon, Copper
- Live dB chart with min, max, and average tracking
- Color-coded noise level indicators from silent to extreme
- Expert mode: full chart, sensitivity slider, GPS location
- Simple mode: clean gauge with essential readings only
- Noise level guide from whisper (20 dB) to jet engine (140 dB)


[ NOISE ALERT - Protect Your Hearing ]

- Set custom dB threshold alerts (30-120 dB)
- Quick presets: Library (40 dB), Office (60 dB), Street (70 dB), Workplace (85 dB), Venue (100 dB)
- Vibration alert when noise exceeds your limit
- Alert history log with timestamps


[ SLEEP SOUNDS - Better Sleep Tonight ]

- 9 relaxing sounds: White Noise, Pink Noise, Brown Noise, Rain, Fan, Stream, Drone, Singing Bowl, Binaural Beats
- Mix multiple sounds with individual volume controls
- Master volume with sleep timer: 15 min, 30 min, 1 hour, 2 hours
- Automatic 30-second fade-out before timer ends
- Save and load your favorite sound presets
- All sounds generated on-device -- no internet needed


[ MEDITATION TIMER - Find Your Peace ]

- Circular countdown with 5, 10, 15, 20, 30, 45, 60 minute presets
- Session flow: preparation bells, meditation, closing bells
- Ambient sounds: Drone, Singing Bowl, Rain, Stream, Brown Noise, Pink Noise, Binaural Theta
- Interval bells at 5, 10, or 15 minute marks
- Save and load meditation presets


[ HEARING TEST - Check Your Hearing ]

- 6-frequency pure tone test: 250, 500, 1000, 2000, 4000, 8000 Hz
- Left and right ear tested separately
- Adaptive threshold finding algorithm
- Results with hearing grade: Normal, Mild, Moderate, Severe
- Frequency pattern analysis and detailed interpretation
- Medical disclaimer included -- screening tool only


[ FOCUS TIMER - Stay Productive ]

- Pomodoro technique: 25 min work, 5 min break, 15 min long break
- 10 ambient background sounds during work sessions
- Session progress indicators with 4-session cycle
- Daily statistics: completed pomodoros and total focus time
- Customizable work and break durations


[ ADDITIONAL FEATURES ]

- Capture and save noise measurement screenshots
- GPS location display on measurement screen
- Dark mode with system mode support
- Status bar shortcut for quick access
- Preset save/load for sleep and meditation
- No internet required -- all sounds generated on-device
- Supports 65+ languages


[ Permissions ]

- Microphone: Required for noise measurement (core feature)
- Location (Optional): Display address on measurement screen
- Storage (Optional): Save measurement captures
- Notifications (Optional): Status bar shortcut


[ Why Choose This App? ]

Unlike basic sound meters, this app combines 6 powerful tools:
1. Professional dB meter with 10 gauge styles
2. Sleep sounds with 9-sound mixing engine
3. Meditation timer with ambient sounds
4. Hearing screening test with detailed results
5. Noise alert monitor with threshold presets
6. Pomodoro focus timer with ambient backgrounds

All audio is synthesized on-device -- no downloads, no streaming, no copyright issues.

Your feedback helps us improve. Rate us if you enjoy the app!

Recent changes:
[ Version 3.1.0 ]
- Live noise level as soon as you open the app
- Big number shows the current level, plus min, average and max
- Improved measurement engine for steadier dB readings
- Switch to noise alert or hearing test while logging, saved automatically
- Cleaner layout and easier-to-read text
- Smoother back navigation, payments and support