Fast SoundMeter : Decibel dB

Fast SoundMeter is a professional sound level meter that turns your device into an accurate acoustic decibel (dB) measurement and history logging tool.

Monitor noise levels around you with a high-response dynamic gauge and real-time waveform chart. Ideal for saving measurement records, checking home noise, workplace sound limits, neighborhood quietness, and acoustic environments.

Key Features:
- High-precision real-time sound pressure level (dB) measurement
- Measurement Record History: Save, organize, and view past sound logs with notes and mini charts
- Detailed Record Analytics: Replay recorded waveform graphs and review Min/Avg/Max stats
- Sleek 240-degree analog-style decibel gauge with smooth animations
- Real-time Min, Avg, and Max statistical sound level tracking
- Live continuous waveform chart displaying sound amplitude trends over time
- 5-stage decibel reference guide (Quiet, Normal, Loud, Very Loud, Dangerous)
- Hearing protection warning notification when noise exceeds 85 dB
- One-tap 3-second smart auto-calibration & ±30 dB manual fine-tuning
- Clean, battery-efficient dark theme interface

Usage Notes:
- Microphones across mobile devices vary in sensitivity. Use the built-in auto-calibration in a quiet room for optimal precision.
- Designed as a dependable acoustic utility for everyday environmental sound monitoring.