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
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.
Excellent features, accuracy, and support.
Tfabris
So far, I have only made use of the LARSA tool in this suite, but the attention to detail is very high, so I get the impression that everything in this suite of tools is just as good. The author, Andrew Smith, was also very responsive and helpful in email when I asked some usage questions.The LARSA tool is amazing. My goal was to find out if my car stereo had any need for EQ correction because I thought I could hear an unnatural peak at 1.5k. So I was able to pair my iPhone with the car stereo so that the LARSA app played a frequency sweep through the car speakers, while the app simultaneously listened to the resulting sweep with its internal mic, and then graphed it. Sure enough, there was the proof: a hump at 1.5k in the graph, about 8db’s worth. I could then easily make a parametric EQ correction of the exact amount, and now it sounds much better. I was able to do all this immediately without any special configuration, it just worked out of the box. The author has posted about how the app turns off some of the built in filtering and limiting on the iPhone’s internal mic so that it gets an accurate response. For adjusting my car stereo, this was enough for my needs, but it’s great to know that I could also attach a calibrated microphone and get and even more accurate result. The app lets you run multiple tests (up to 8 of them I think) and compare them or average them together. I used this to get multiple samples from different listening positions in the car. It also lets you save and recall multiple test runs, adjust for latency, and other things. Very feature-complete. Final note: the LARSA tool is among the “in-app-purchases”, so you will need to buy it separately, though it has a 7-day trial built in. I think you can also buy it “a la carte”, or with other bundles, in the App Store.
This is the one
mcrectifier
Whether your novice, or your working class on a budget like myself. This app gives you flexibility to expand as your finance changes. With add on modules as low as 5 bucks on up you can’t go wrong. Buying some computer programs are expensive at the start up. Sometimes not with the features you want them to have. With this app, I can pick and choose when I desire to. And the pockets don’t get emptied. The best part of all has to be, the demo of the module you want to buy. This is so very useful to those unsure of its operation. Nice touch, very highly recommended to any one.
**AudioTools, #1 audio test & measurement platform
New in this update:
-New module, Reference Audio File Player
-Auto-EQ added to LARSA
-Auto-EQ added to FFT module
-PDF reports added for RTA, FFT, ETC, SoundScope, Impulse Response, Transfer Function, Gated Noise RT60, and Transmission Loss
-Added fie picker for STIPA Pro occupational noise WAV files
-Fixed X-curve display issues in SoundScope
-Fixed Impulse Response axes on some plots
-Upgrades to HAA CinemaTools project management
-Updates to CinemaTools reporting and modules
-Bug fixes and stability improvements
Version 18.1
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 Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Diagnostics
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
72 MB
Category
Music
Compatibility
Requires iOS 13.0 or later.
iPhone Requires iOS 13.0 or later.
iPad Requires iPadOS 13.0 or later.
iPod touch Requires iOS 13.0 or later.
Mac Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
Apple Vision Requires visionOS 1.0 or later.
Languages
English and 7 more
English, French, German, Japanese, Polish, Simplified Chinese, Spanish, Swedish
