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
I am the director of a Performing Arts Center and have to deal with audio issues in 3 different performance spaces and varied events from rock bands, orchestras, choirs, musicals and plays. I purchased the App when it first came out and have used the basic tools that came with it with great success. ( Had FOH audio engineers compare the accurracy of the app tools to their own and have come away impressed) I have purchased additional tools as needed which has saved me a lot of money compared to the single tools I would have purchased. To those having issues with cost or deceptive practices, read everything very closely and contact Line 6 if you have questions. Then Determine what tools you need to accomplish the job so you are paying for what you have need for. When I weighed what I would spend purchasing stand alone tools ( even the so called cheaper units) to what I spent with this app; In my book this has been a worthwhile investment!!! I plan to install on my Ipad 2 so I can use tools at the same time.
Fantastic, Best App I’ve Ever Seen
Wulpark
This is a solid reference tool. It has incredible features for acoustic analysis. I frequently use the SPL meter to quickly check levels; it’s far more likely I have my phone on me than a dedicated device. I have used the signal generators for testing speakers and the acoustic response of my studio. There’s everything you’ll want here (I don’t quite know what half the things do, but this app does it!).The only thing that will make this better is an omni reference mic since the built-in microphone has limitations, but as a ballpark quick reference (which is what I usually need), this is amazing. I recommend this constantly. The price is unbeatable. Considering buying one of each of the tools it has would rack up quite a bill, this app has everything and it’s all on your phone. Can’t say enough good things.
Almost every tool you will ever need
BanderaT
I have used this app for setting up sound systems (pinpointing feed back quick and easy), tuning speaker cabinets, mastering Cds. You will need more than this but its another tool. Few jobs can be done with just one tool. Yes to make some things easier you will need to purchase some additional tools. Still When a mechanic buys a tool box he generally adds more tools. No doubt your ears are your most important tools that you have, but this suit of apps are definitely a huge help. With this app you get a lot for 20 bucks.The additional modules make a complete tool box. With the ability to see what you hearing.
Pro Audio Must Have App!!
millermixFOH
I work as a pro sound mixer and downloaded Audio Tools thinking it would be a cool toy to show off to collegues, but not much more. As it turns out, Audio Tools is a "how did I ever live without it?" app! I have used The RTA with the internal iphone mic to rough tune LOUD monitor wedges and FOH systems and so far have been very happy with the results. The db meter works great as does the tone generator. This app literally replaces $1000's worth of test equipment for the price of a Radio Shack db meter!! If you tour as an artist or band sound mixer and don't already have a SMART, Apogee, Earthworks rig, this app is for you, especially if you work on A different PA everyday! I can't wait to try the interface.
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.
Version 18.14
Subscriptions
All-In Module Access
Unlock all modules (except third-party apps)
Trial
In-App Purchases
SoundScope VR
FFT analyzer with Spectrograph, VR features
$24.99
LARSA
Loudspeaker and Room System Analyzer
$29.99
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.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
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.
Languages
English and 8 more
English, French, German, Japanese, Polish, Simplified Chinese, Spanish, Swedish, Traditional Chinese
