Decibel - Sound Meter Pro
Decibel - Sound Level Meter
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Identify sounds with AI, Track noise levels with lab precision, monitor OSHA dose % , and capture decibel camera proof in one powerful app!
# Decibel Meter Pro: AI Sound
**Decibel Meter Pro: AI Sound** is an all-in-one acoustic engineering and noise measurement suite. Engineered for sound technicians, workplace safety inspectors, environmental researchers, acoustic enthusiasts, and everyday users, this app transforms your device into a certified-grade sound level meter (SPL), occupational noise dosimeter, AI sound classifier, camera noise evidence recorder, and precision tone generator.
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### Precision Decibel Meter & SPL Analyzer
Measure environmental sound pressure levels (SPL) in real time with high accuracy:
- **Instantaneous Sound Pressure**: Real-time dB readings with an ultra-responsive radial gauge (0 to 120+ dB).
- **Acoustic Readouts**: Instant, Minimum (Min), Maximum (Max), and Average (Avg) decibel tracking.
- **Live Waveform Chart**: Track sound level variations over time with dynamic scrolling waveform graphs.
- **Hardware Calibration**: Adjust microphone sensitivity with custom ±dB calibration offsets.
- **Reference Scale**: Compare measurements against real-world references (30 dB to 140 dB).
### Occupational Noise Dosimeter (OSHA & NIOSH)
Protect hearing and maintain workplace compliance with standard dosimeter monitoring:
- **Standards Presets**: Switch between **NIOSH REL** (85 dB / 3 dB), **OSHA HC** (90 dB / 5 dB), and **OSHA PEL**.
- **Real-Time & Projected Dose %**: Monitor live noise dose accumulation and projected 8-hour daily exposure.
- **TWA & Leq Metrics**: Calculate accurate Time-Weighted Average (TWA) and Equivalent Continuous Sound (Leq).
- **Hearing Risk Alerts**: Real-time color-coded safety guidance (Safe, Action Level, Hazardous).
- **Session History**: Save, review, and manage completed dosimeter sessions with exposure data.
### AI Sound Recognition & Classifier
Powered by on-device Edge AI machine learning (TensorFlow Lite / YAMNet):
- **Real-Time Sound Recognition**: Identifies speech, sirens, alarms, dogs, machinery, music, and nature.
- **Confidence Scoring**: Displays real-time detection probability percentages for every sound event.
- **Event Timeline**: Logs detected environmental sounds chronologically with exact timestamps.
- **100% On-Device Privacy**: All neural network processing runs locally—zero audio is sent to the cloud.
### Camera Sound Overlay & Visual Evidence
Document noise violations, workplace audits, and neighborhood sound levels with photo evidence:
- **Live Decibel HUD**: Real-time dB, Peak dB, Min/Max/Avg, and timestamps overlaid on viewfinder.
- **Watermarked Capture**: Save calibrated photo evidence with embedded sound stats to gallery.
- **Dual Camera**: Switch seamlessly between front and rear cameras for handheld and site audits.
### Audio Frequency Generator (20 Hz – 20 kHz)
Generate pure sine wave frequencies across the entire audible spectrum:
- **Full Spectrum Range**: Smoothly sweep from 20 Hz sub-bass to 20,000 Hz treble.
- **Gesture Controls**: Adjust frequencies with vertical drag gestures and quick presets (Low, Mid, High).
- **Acoustic Testing**: Perfect for speaker testing, subwoofer tuning, room acoustics, and tinnitus relief.
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### Privacy & Battery Efficiency
- **Zero Cloud Recording**: Audio is processed in memory only; never recorded or shared.
- **Optimized Performance**: Native audio processing with minimal battery drain.
- **Adaptive Themes**: Clean Light & Dark modes for high contrast in all lighting.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Bug fixes and performance improvements.
The developer, IMAD EDDINE EL QSIMI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Purchases
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- IMAD EDDINE EL QSIMI
- Size
- 84.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Bd Meter Premium Yearly $14.99
- Bd Meter Premium Monthly $9.99
- Bd Meter Premium Weekly $5.99
- Copyright
- © Decibel Ai Pro
