Wonder Decibel - Voice Meter
Noise App & DB Reader
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Professional measurement algorithm that measures and encrypts environmental decibel levels in real time, intelligently overlaying data onto photos and videos.
Wonder Decibel transforms your iPhone into a professional acoustic lab, blending scientific precision with intuitive design for deeper insight into any sound environment.
**Understand Your Sound Environment Instantly**
More than just a decibel meter, Wonder Decibel interprets what the numbers mean. Our intelligent **Noise Level Classification** feature instantly translates raw decibel readings into meaningful categories – from "Quiet Library" to "Hazardous Noise." Get immediate, human-readable feedback on your acoustic environment, empowering you to take action when it matters most.
**Professional-Grade Measurement for Every Scenario**
Whether you're monitoring workplace safety, assessing environmental noise, or analyzing audio equipment, Wonder Decibel delivers laboratory-grade precision with support for **three essential frequency weightings**:
- **dBA** – Optimized for environmental and occupational noise assessment
- **dBC** – Ideal for measuring industrial and entertainment sound levels
- **dBZ** – Captures peak impulse sounds with unmatched accuracy
**Visualize Sound in Real Time**
See what you're hearing with our sophisticated **Triple Visualization System**:
- **Waveform Display** – Track sound pressure variations in real time
- **FFT Analysis** – Deconstruct audio into its frequency components
- **Spectrogram View** – Observe how frequency content evolves over time
These professional tools reveal patterns and characteristics invisible to standard meters, perfect for audio engineers, researchers, and curious minds.
**Never Lose Track of Your Measurements**
Every reading tells a story. Wonder Decibel automatically creates a **Detailed Measurement Log** for each session, preserving:
- Precise GPS location with map integration
- Accurate timestamps and duration data
- Measurement type and environmental conditions
- Custom notes and tags for easy organization
Your complete measurement history is always accessible, searchable, and exportable.
**Capture Visual Evidence with Data Overlay**
A picture is worth a thousand measurements. Our innovative **Media Capture System** allows you to:
- Take photos with real-time sound levels displayed on-screen
- Record videos with continuous decibel readouts
- Automatically embed measurement data into image metadata
- Create compelling visual documentation for reports and presentations
**Create Professional Reports in Minutes**
Transform raw data into polished deliverables with our **Advanced Reporting Engine**:
- Generate comprehensive PDF reports with charts and graphs
- Include measurement details, location maps, and captured media
- Share instantly via email, cloud services, or messaging apps
- Export raw data for further analysis in spreadsheet applications
**Perfect For:**
- **Occupational Health & Safety** professionals monitoring workplace compliance
- **Audio Engineers & Musicians** analyzing acoustics and equipment
- **Event Planners** ensuring venue compliance with regulations
- **Property Managers** documenting noise complaints and assessments
- **Educators & Students** exploring the science of sound
- **Homeowners** monitoring neighborhood noise levels
- **Industrial Hygienists** conducting comprehensive sound evaluations
**Subscription Service**
When you subscribe to the "VIP Subscription" service, you will enjoy the following benefits:
1. Unrestricted access to all features.
2. AI content recommendations based on usage habits.
Payment for subscriptions is straightforward—the user's iTunes account is credited immediately after confirmation of purchase and payment. Please note that the Apple iTunes account will be automatically debited 24 hours prior to expiration. Upon successful deduction, the subscription term will be extended by one subscription cycle.
User Agreement: https://www.wonderda.com/agreement.html
Privacy Agreement: https://www.wonderda.com/privacy.html
Thanks for staying with us! In this version, you'll find:
1. Compatible with the latest iOS system
2. Fix bugs
The developer, 小利 薛, 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
- 小利 薛
- Size
- 12.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - iPad
Requires iPadOS 16.0 or later. - Mac
Requires macOS 13.0 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+
- In-App Purchases
Yes
- VIP Subscription Service $2.99
- Copyright
- © 2020 Li Tech