Sound Meter Pro

Sound Meter Pro — Decibel Meter, Noise Dosimeter, Sound Disturbance Recordnig & Spectrum Analyzer, Plus More Sound Meter Pro is the most complete decibel meter on Android — combining an instant, accurate sound level meter with the tools a real audio professional, safety officer, or curious enthusiast actually needs: frequency-weighted readings, daily noise exposure tracking, a full spectrum analyzer, overnight sleep logging, and shareable PDF/CSV reports. 🎚️ REAL-TIME DECIBEL MEASUREMENT Instant, accurate readings the moment you open the app. Watch the live gauge respond as sound levels change, with min/average/max tracked live as you measure. 🅰️ dB / dB(A) / dB(C) FREQUENCY WEIGHTING Cycle between unweighted dB, A-weighted dB(A) — the standard for workplace noise limits — and C-weighted dB(C) for low-frequency and impact noise. Every saved measurement and export remembers its scale. 📈 DAILY NOISE DOSE & EXPOSURE TRACKING See your daily noise dose and equivalent 8-hour exposure (TWA), calculated against the NIOSH recommended limit — plus today's measured time and how close you are to it. 🔬 PROFESSIONAL SPECTRUM ANALYZER A full 1/3-octave frequency spectrum, live spectrogram, real-time waveform scope, and automatic peak/tone detection — including a mains-hum flag for 50/60 Hz electrical buzz. See what's making the noise, not just how loud it is. 🌙 OVERNIGHT SLEEP NOISE LOG Leave your phone charging overnight and Sound Meter Pro logs every noise event above your threshold — timestamped with length and peak level. Optional real-time loud-event notifications, plus CSV/PDF export of any night. 🏠 HOME SCREEN WIDGET Your last measurement, right on your home screen. 📊 DETAILED MEASUREMENT STATS Min/average/max dB, sound classification, duration, date/time, and frequency weighting used — for every recording. 🎙️ RECORD, SAVE & EXPORT Every measurement is auto-saved to your history. Export as CSV or a polished PDF report with a level-over-time chart and noise dose per session — ready to hand to an employer, landlord, or HOA. 📋 FULL MEASUREMENT HISTORY Browse every past recording and open any entry for a full detail view. 🔍 MEASUREMENT DETAIL SCREEN Full stats, recording timeline, and an environment comparison ("similar to a busy street," "similar to a library") for any saved measurement. 🎯 CALIBRATION Calibrate the microphone for your specific device for the best accuracy your phone's hardware can deliver. 📖 DECIBEL REFERENCE GUIDE A built-in guide translating any dB reading into real-world context — from a whisper to a jet engine. 🌍 AVAILABLE IN 22 LANGUAGES English, Spanish, French, German, Portuguese, Italian, Dutch, Turkish, Polish, Romanian, Indonesian, Vietnamese, Chinese, Japanese, Korean, Arabic, Hindi, Russian, Thai, Ukrainian, Bengali, and Urdu. PERFECT FOR: Workers tracking workplace noise exposure • Musicians and audio enthusiasts • Parents checking nursery noise • Noisy-neighbor or HOA disputes • Light sleepers • Students, researchers, and construction workers checking safe levels. WHAT MAKES US DIFFERENT: Most decibel apps show one number and stop. Sound Meter Pro adds frequency weighting, real exposure/dose tracking, a genuine spectrum analyzer, overnight event logging with smart detection, and professional PDF reports — a complete toolkit, not a toy. Readings are measured using your phone's built-in microphone, which is not a certified or professionally calibrated instrument. Use Sound Meter Pro as a helpful estimate, not a substitute for certified measurement equipment where legally required. Download Sound Meter Pro today and start measuring the world around you — properly.