Sound Meter

jjpapa

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About this app

Sound Meter is a precise and easy-to-use noise meter that measures ambient sound levels in real time — right from your smartphone.

1. Real-Time Measurement
- Watch live decibel readings on a beautiful arc gauge with a smooth needle and peak hold indicator. The scrolling dB graph shows sound level changes over time at a glance.

2. Min / Avg / Max Stats
- Track the minimum, average, and maximum decibel values for every session automatically.

3. Threshold Alert
- Set a custom dB threshold. When noise exceeds the limit, you'll get an instant vibration and sound alert — great for monitoring noisy environments.

4. Calibration & Response Speed
- Fine-tune your measurements with a ±20 dB calibration offset. Switch between fast and slow response modes to match your needs.

5. Measurement History
- Every session is saved automatically. Review past measurements anytime — date, duration, and min/avg/max values all in one place.

6. Noise Level Reference Chart
- Not sure what a dB value means? Open the built-in reference chart to see what everyday sounds correspond to — your current reading is highlighted in real time.

7. Dark & Light Theme
- Choose the look that suits you. Both themes are optimized for comfortable use indoors and outdoors.

8. Background Measurement - Keep measuring even when the app is in the background. A persistent notification shows the current dB level so you're always in the know.

Whether you're checking room acoustics, monitoring workplace noise, or just curious about your environment — Sound Meter gives you the data you need.