Sound Level Meter –Noise Meter

Real-time dB meter with live charts, event tags, alerts, and PDF/CSV export.

Sound Level Meter – Noise Meter & Decibel Meter helps you measure environmental noise in decibels (dB) with a clean, instrument-style interface. Track noise over time, mark important moments, set alerts, and export reports—great for dorms, home, office, and outdoor use. 🏠🌙🏢

Key Features
• Real-time dB reading 🎛️
Large, easy-to-read numbers with an instrument-style display.
• Live time-series chart 📈
See how noise changes over time (multiple time windows supported).
• Stats & summaries 📊
Includes Leq (equivalent continuous level), Lmax, Lmin, and Peak (optional).
• Event Markers (Mark) 🏷️
Tag moments like “construction start”, “vehicle passing”, or “door slam” for quick review.
• Threshold Alerts 🔔
Get notified or vibrate when noise exceeds your set level.
• Export & share reports 📄
Export PDF/CSV reports including charts, stats, markers, and measurement settings.

Advanced Measurement Options
• Frequency Weighting: A / C / Z (flat) 🎚️
• Time Weighting: Fast / Slow ⏱️
• Calibration Profiles ✅
Calibration reminders and per-device calibration records.
• Overload Warning ⚠️
Detects clipping/overload and indicates when readings may be inaccurate.

Great For
• Dorm/neighbor noise tracking 🌙
• Study and sleep environment checks 💤
• Renovation, construction, and road noise trends 🛠️🚗
• Pre-checking ambient noise before meetings, livestreams, or recording 🎙️

Important Notes
• This app uses your phone’s microphone. Readings may vary by device, distance to the sound source, room reflections, and system audio processing. 📱
• For compliance-grade results, use a certified sound level meter or an external measurement microphone with proper calibration. 🎧
• Some features (recording/export) may require additional permissions to work properly. 🔒