Noise Monitor - 噪音計
sound measure, decibel meter
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Professional sound level meter with real-time noise monitoring, risk assessment, and occupational exposure tracking. Protect your hearing with accurate dB measurements.
Transform Your Device Into a Professional Sound Level Meter
Noise Monitor - 噪音計 delivers laboratory-grade noise monitoring right on your device. Whether you're an occupational safety professional, audio engineer, or simply concerned about noise exposure, our app provides the precision tools you need to measure, track, and analyze sound levels in any environment.
PROFESSIONAL MEASUREMENT TOOLS
• Real-time decibel monitoring with smooth animations
• A, C, and Z frequency weighting support
• Multiple industry standards (OSHA, NIOSH, EU)
• Peak, minimum, and maximum level tracking
• LAeq (equivalent continuous sound level)
• TWA (time-weighted average) calculations
• Noise dose percentage monitoring
• Maximum safe exposure time estimates
MODERN INTERFACE
Experience sound measurement reimagined with our stunning visual design:
• Dynamic animated gauge with color-coded risk levels
• Real-time waveform backgrounds that respond to noise
• Glass-style cards with elegant data presentation
• Smooth transitions and haptic feedback
• Easy-to-read statistics at a glance
COMPREHENSIVE HISTORY & TRACKING
Never lose a measurement with our robust history features:
• Automatic session recording and storage
• Detailed measurement sessions with full statistics
• Time-stamped data for compliance documentation
• Historical trend analysis
• Export capabilities for reporting
OCCUPATIONAL SAFETY COMPLIANCE
Built with workplace safety in mind:
• OSHA 1910.95 standard support
• NIOSH recommended exposure limits
• European Union directive compliance
• 8-hour dose projections
• Action level and criterion level indicators
• Safe exposure time calculations
AUDIO WEIGHTING OPTIONS
Choose the right weighting for your needs:
• A-weighting: Human hearing perception (most common)
• C-weighting: High-level measurements and peak sounds
• Z-weighting: Flat frequency response for technical analysis
PERFECT FOR
• Occupational health and safety professionals
• Construction site monitoring
• Factory and industrial environments
• Audio engineers and musicians
• Home theater calibration
• Noise complaint documentation
• Environmental noise assessment
• Hearing protection awareness
• Educational purposes
PRIVACY FOCUSED
Your measurement data stays on your device. We don't collect, store, or transmit your sound measurements to any external servers. All data remains private and under your control.
Download Noise Monitor - 噪音計 today and take control of your acoustic environment. Protect your hearing, ensure workplace safety, and make informed decisions about noise exposure.
The developer, John Xu, 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 Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- John Xu
- Size
- 3.3 MB
- Category
- Utilities
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 100 Spirit Stones $2.99
- 20 Spirit Stones $0.99
- Copyright
- © 2026 Noise Monitor - 噪音計