SpecWave
SPL Meter, Spectrum, Audio Gen
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
SpecWave visualizes audio! Check dB & pitch via mic. Play 3 wave types and enjoy sweep tones. Perfect for testing speakers or tracking noise!
Key Features
Real-time Spectrum Analysis (See Your Sound)
- Instant Visualization: Captures ambient sound via microphone and presents it in beautiful "Line" or "Bar" chart styles, making pitch and volume crystal clear.
- Key Data Capture: Displays the current peak frequency and total decibel level in real time, while automatically logging the maximum and minimum decibels for your session.
- One-Tap Display Freeze: Tap the spectrum chart anytime to freeze the current frame, allowing you to observe and compare sound details at your own pace.
- Multi-Source & Parameter Toggles: Switch between built-in and external microphones with a single tap, and toggle between log/linear frequency axes to suit your needs.
- Microphone Gain Control: Easily adjust input sensitivity to your liking. *(Note: This app outputs raw relative values only; for high-precision acoustic measurement, please calibrate with a sound level meter first)*
Audio Signal Generation (A Fun Health Check for Headphones & Speakers)
- 3 Classic Waveforms: Built-in sine, square, and triangle wave audio signals to instantly turn your phone into a versatile sound transmitter.
- Fun Dynamic Frequency Sweeps: Supports fixed frequency playback alongside single, loop, or round-trip dynamic sweep modes. Easily test speaker bass depth or fine-tune audio gear.
- Precise Gesture Tuning: Use smooth swipe gestures for silky, precise micro-adjustments to both output frequency and volume gain.
Common Use Cases
- Measure room insulation or ambient noise decibels at home or in the office.
- Test newly purchased headphones or speakers to see if the bass is deep enough and the treble is crisp.
- Assist with instrument tuning by viewing the exact sound pitch and frequency.
- Explore fun acoustics by playing curious sweep tones with the signal generator.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
- Adapted for iOS 27
- Optimized some UI details
The developer, 晓玮 郭, 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
- 晓玮 郭
- Size
- 8.4 MB
- Category
- Utilities
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - Mac
Requires macOS 26.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 26.0 or later.
- iPhone
- Languages
English and 10 more
- English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese
- Age Rating
4+
- 4+
- Copyright
- © Shallwey