Decibel Meter: Noise Detector

Noisy keeping you awake? Unexplained low-frequency hum vibrating your walls? Need iron-clad proof for an HOA dispute, landlord complaint, or short-term rental check? Decibel Meter is a professional-grade acoustic toolkit for iPhone — a high-precision sound level monitor, real-time spectrum analyzer, and forensic-grade evidence recorder engineered in one standalone app. Perfect replacement for physical noise monitors!

Whether you are documenting neighbor noise, capturing late-night structural vibrations, measuring office sound levels, or protecting your hearing, Decibel Meter gives you reference-grade dB readings, advanced analytics, and exportable proof — 100% offline, with absolute privacy.

=== UNLOCK DECIBEL METER PREMIUM (3-DAY FREE TRIAL) Try our heavy-duty forensic and diagnostic tools completely free for 3 days. Upgrade to Premium to unlock: Advanced 2048 FFT Spectrogram: Pinpoint elusive low-frequency structural hums. Forensic Video Overlays: Burn GPS, timestamps, and live dBZ/dBC data into pixels. AI Noise Filtering: Automatically record only when target noises (e.g., dogs, sirens) trigger. Segmented Auto-Saving: Peace of mind during overnight tracking—data saves every 10 minutes seamlessly, ensuring zero loss even if your battery dies.

=== LIVE SOUND MONITOR & HIGH-PRECISION SPECTROGRAM Real-time dB display featuring Max, Min, Average, and Leq parameters.

Logarithmic audio spectrum analyzer supporting standard 1024 and high-definition 2048 FFT configurations.

Professional A, C, and Z weighting filters to match different acoustic metrology standards.

High Sensitivity Mode (dBZ/dBC): Expose deep sub-bass rumbles from AC units, plumbing, and subwoofers that standard dBA scales hide.

Fullscreen LED dashboard for effortless at-a-glance monitoring from across the room.

Native Live Activities & Dynamic Island integration—keep track of levels seamlessly from your Lock Screen.

=== VOICE-ACTIVATED RECORDING WITH DATA PROTECTION Smart auto-record: Custom trigger thresholds with tailored tail delays.

AI-Powered Audio Classification: Opt to record only specific acoustic events (Dog barking, Engine hums, Music, etc.) to clear out background static.

Background telemetry maintains continuous measurement while you use other apps.

=== FORENSIC VIDEO EVIDENCE Record video with dynamic decibel watermarks hard-burned into every single frame via GPU acceleration.

Indisputable millisecond timestamp and GPS overlay for tamper-proof compliance documentation.

Up to 5× live digital pinch-to-zoom to capture distant construction or violations.

Perfect for official tenant-landlord disputes, local council hearings, and noise code compliance checks.

=== FILES & SECURE LOCAL EXPORT Browse all voice clips, metadata logs, and video evidence in one consolidated local vault.

Play, rename, delete, or batch-export files via AirDrop, Email, or Files App.

Advanced sorting metrics: filter by Date, Peak Decibels, or File Name.

Calibrate offsets per device model to ensure maximum reference accuracy.

=== 100% PRIVACY FIRST — ZERO CLOUD UPLOADS Your space, your privacy. All measurement processing, AI classification, sound recording, and video rendering happen entirely on-device. Decibel Meter works fully offline and never uploads your audio, video, or ambient metadata to any remote servers.

=== IMPORTANT DISCLAIMER Decibel Meter is not a certified class-1 or class-2 sound level meter. Readings are high-precision reference estimates intended for personal comparison, situational logging, and documentation purposes only—not for legally mandated industrial metrology or OSHA occupational safety certification.

Terms of Use (EULA): By subscribing to or purchasing Decibel Meter Premium, you agree to Apple's standard license agreement. You can view the detailed terms of use here: https://www.apple.com/legal/internet-services/itunes/dev/stgula/

Privacy Policy: https://www.noise.nx.kg/privacy.html