Sound Level Meter - dB & Audio

🔊 Smart Sound Level Meter - Real-Time dB Meter & Audio Reference Recorder Accurately measure real-time sound pressure levels (SPL) and record synchronized audio reference logs using your smartphone's high-precision microphone. 100% on-device and privacy-focused! Featuring an innovative 180° auto-flip screen mode, point the bottom microphone towards ceilings (apartment floor noise), walls, or windows to measure sound comfortably while viewing decibel numbers right side up. Built-in audio denoise filtering and keep-screen-on features guarantee clear, stable noise monitoring. ━━━━━━━━━━━━━━━━━━━━━━ 🌟 Key Features of Sound Level Meter ━━━━━━━━━━━━━━━━━━━━━━ 1️⃣ 📟 Live View: Large Digital dB HUD & Real-Time Oscilloscope Waveform • High-contrast 000.0 dB digital readout for instantaneous noise level checks without saving. • Real-time sound oscilloscope waveform captures impact thumps and continuous noise instantly. • Live Min, Avg, and Max/Peak decibel statistical tracking. • Color-coded safety indicators (Safe, Normal, Caution, Warning, Danger). 2️⃣ 🎙️ Record & Log: Synchronized Audio & Measurement Data • Synchronize live decibel readings and microphone audio safely on-device as an objective reference log. • 10-minute auto-safe timer protects device storage while providing immediate playback upon completion. • Easy one-tap file sharing via email, messaging apps, or cloud storage. 3️⃣ 📱 180° Auto-Flip Screen Mode (Ceiling & Wall Measurement) • When tilting the bottom microphone upward toward ceilings or walls, the screen automatically rotates 180°. • Read numbers right side up without twisting your neck or hands. • Manual 180° toggle button available on the top bar. 4️⃣ 📊 Environmental Noise Guideline Comparison HUD • Real-time overlay comparing current noise against standard residential guideline thresholds (Daytime / Nighttime). • Instantly identify whether surrounding noise exceeds typical indoor and outdoor levels. 5️⃣ 📂 History Vault & Local Storage • Timestamped measurement records and audio files stored securely in a 100% on-device Room DB. • Instant one-tap filtering between [All Records] and [Audio Logs]. • Zero external server transmission—complete offline capability and total privacy. 6️⃣ ℹ️ Acoustic Guide & Reference Notice • Device Margin of Error: Measures physical sound pressure level (dB SPL, approx. ±5 dB error margin). • Note on Legal Standards: Official environmental standards use frequency A-weighting (dB(A)), which may differ from raw SPL values. • Practical Reference Material: Data and recordings serve as preliminary reference materials to help agencies identify noise patterns and timings. Download Sound Level Meter today for accurate, hassle-free noise monitoring!