AudioTools, dB, Sound & Audio
RTA, Acoustics Measurement SPL
EGP 999.99 · In-App Purchases · Designed for iPad
AudioTools from Studio Six Digital is a suite of professional-grade audio and acoustic analysis apps. Included in the price of this app is a great collection of professional tools -- SPL, RTA, FFT, Speaker Polarity Test, Generator, Audio Scope, CLF Viewer, and Recorder, and the framework to add more powerful modules as you need them.
Customize AudioTools for your needs by buying any of the additional optional modules, like Smaart Tools I, SPL Graph, or Impulse Response, at any time right from your iOS device.
We test every iOS device and calibrate the microphone level and frequency response for the best results. We have the ability to turn off the Apple low frequency filters, and on many devices we can measure up to 120 dB SPL.
Add iTestMic, iPrecisionMic, or iAudioInterface2 for a complete professional audio and acoustic test and measurement platform.
Actual reviews:
“...AudioTools is a “how did I ever live without it” app”.
“I think this application is the best I EVER purchased.”
“I have used many thousands of dollars of complicated test equipment that doesn’t measure up to this app suite.”
***** Included in the app price *****
* SPL Meter
A faithful reproduction of a classic analog SPL meter. Includes A and C weighting, and Fast and Slow ANSI decay modes. All filters meet or exceed ANSI type 1.
* RTA
A 1/3 and octave band Real Time Analyzer. Includes touch-GUI range control, a cursor, max/min bars, and noise curve overlays.
* FFT
Detailed acoustic analysis, up to 32876 points. View full detail or smooth to 1/24, 1/6, 1/3 or octave. Includes cursor, scalable graphics, and peak tracking.
* Polarity
Speaker polarity checker. Route the test signal to a speaker, and read the polarity of the speaker on the screen.
* CLF Viewer
Show loudspeaker data, including plots for impedance, axial response, sensitivity, polar response, and 6dB coverage, and a 3D color balloon plot.
* Delay Finder
Measures the time it takes for a pulse to return from a speaker.
* Generator
Generates sine waves, square waves, white and pink noise.
* Line Level Tests
A line level measurement function and frequency counter.
* Audio Scope
A dual-channel audio oscilloscope that includes auto-triggering, variable gain and sweep rate, and storage of scope images.
* Recorder
A mono/stereo audio recorder with WAV and compressed formats and 8k-48k sample rate. Transfer files via WIFI.
* File transfer of results via wifi to PC / Mac.
* Audio Calculators
***** Optional modules available for purchase from within AudioTools *****
* SoundScope VR - FFT-based audio analyzer with VR.
The powerful acoustical analysis module. Includes RTA graphs to 1/48th octave and Spectrograph, and can display VR.
* Transfer Function -- Requires 2-channel interface.
Two-channel FFT-based measurement. Allows you to analyze sound system performance with music or pink noise as the signal source.
* ETC
Energy Time Curve. Plot decay of an impulse over time, and compute RT60 time. Internal or External trigger.
* Impulse Response
Record and analyze an impulse or sine sweep, compute octave and 1/3 octave ETC, T30, C50, C80, CT, Definition.
* LARSA
Fast and accurate sine-sweep measurement of loudspeakers and rooms.
* SPL Pro
Digital SPL meter with ANSI Slow, Fast, Peak, and Impulse mode, along with LEQ. Includes A and C weighting, and all 10 octave band filters.
* SPL Graph
Plot second-by-second SPL level for up to 24 hours, and optionally record the audio. Also, add the optional Octave Band Logging upgrade to elevate this tool to rival any professional logging SPL Meter.
* SPL Traffic Light
Monitor live sound levels SPL and Leq and see status in a simple green-yellow-red display.
* STIPA Speech Intelligibility
Meets the current NFPA code standards for testing evac systems and schools.
* Speaker Distortion
Measure THD+n of any driver.
* THD+n (requires iAudioInterface)
* Impedance Meter and Plot (requires iAudioInterface)
* Phase Meter
* Amplitude Sweep
A Closer Look
Ratings & Reviews
AudioTools, #1 audio test and measurement app
New in this release:
- Ready for iPhone Duo: every screen adapts to closed, open, book and tent, with controls in the side strip.
- Window-size aware: layouts follow the window, including iPhone Mirroring on macOS 27.
- iOS 26 appearance adopted.
- SPL Dashboard: Stop works with auto-save off; meters stack when the screen is tall.
- SPL Pro: labels no longer creep after a fold; weighting menu is right way up on a flipped screen.
- SPL Meter: landscape layout restored.
- Scope: the generator panel no longer appears twice.
- LUFS, Channel Mapper, STIPA, Thiele/Small, Impedance, Recorder: layout fixes for small and odd-shaped screens.
- Low SPL: short band titles on narrow screens.
- LARSA: auto trigger level when the sweep plays on Hyperion, SurroundPod or Apple TV; sub timing from the envelope; Magnitude and Phase no longer blank with an external mic and no comp file.
- Calibration: iPad (A16) added to the device table.
- HAA Link: filter panel crash fixed; miniDSP 2x4 HD supported as a processor.
- CinemaTools: Sub Alignment, Signal Generator, project backups and many fixes.
Subscriptions
In-App Purchases
The developer, Andrew Smith, 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
- Provider
- Andrew Smith
- Size
- 100.3 MB
- Category
- Music
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 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 and 8 more
- English, French, German, Japanese, Polish, Simplified Chinese, Spanish, Swedish, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- All-In Module Access EGP 499.99
- SPL Pro Module EGP 399.99
- Max Subwoofer SPL EGP 1,499.99
- LUFS Meter EGP 499.99
- HAA CinemaTools with HAA Link EGP 7,999.99
- HAA Link EGP 499.99
- HAA Pro Module EGP 999.99
- SPL Enhance EGP 1,999.99
- HAA Upgrade to Pro EGP 19,999.99
- HAA Pro Installer EGP 24,999.99
- Copyright
- © Andrew Smith
