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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. 🔒