Decibel X: Sound Meter dB

Decibel X: Sound Meter dB is a professional, high-precision sound pressure level (SPL) meter that turns your mobile device into a reliable acoustic noise detector and decibel reader.

Whether measuring neighborhood noise levels, testing speaker acoustic volume, checking workshop machinery safety, or monitoring environmental acoustics, Decibel X provides real-time calibrated readings with zero complex setup.

KEY ACOUSTIC FEATURES:
- DYNAMIC ANALOG VU GAUGE: Smooth 60 FPS damped needle display with color-coded safety zones (Normal, Moderate, Loud, Hazardous).
- REAL-TIME OSCILLOSCOPE WAVEFORM: Live scrolling audio amplitude graph visualizing sound waves and decibel peaks.
- ESSENTIAL NOISE STATISTICS: Accurate tracking of Current dB, Minimum dB, Maximum dB, and Time-Weighted Average (Leq) sound pressure levels.
- CALIBRATION TUNING: Easy adjustment slider (+-10 dB) to calibrate against specialized sound level hardware.
- ENVIRONMENT COMPARISON GUIDE: Instant reference chart comparing current dB against common environments (30 dB Quiet Whisper, 50 dB Quiet Office, 70 dB Busy Traffic, 85 dB OSHA Noise Hazard, 110 dB Rock Concert).
- PAUSE & RESTART: Freeze readings instantly to record values, with one-tap history reset.

PRIVACY & OFFLINE FIRST:
- 100% Client-Side Audio Processing: Sound signals are processed strictly locally in memory to calculate dB values. Audio is NEVER recorded, saved, or uploaded to any server.
- No Account Required: Immediate access with zero login, zero tracking, and zero hidden telemetry.

Privacy Policy:
https://hoanganhphan91.github.io/hoanganhphan91/