Description

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 *****
* Smaart® Tools - Single channel module.
The power of Smaart® on a mobile platform. Includes RTA graphs to 1/48th octave and Spectrograph. Split-screen on iPad.
* 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

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In-Apps

LARSA

$29.99

VU Meter

$2.99

IR Module

$49.99

ETC Module

$5.99

Smaart RTA

$49.99

SPL Pro Module

$7.99

SPL Graph Module

$9.99

SPL Traffic Light

$9.99

Speaker Distortion

$5.99

Polarity Test Module

$3.99

Screenshots

User Rating

4.79 out of 5

4,523 ratings in United States

5 star

3,930

4 star

405

3 star

2 star

1 star

Ratings History

AudioTools Installs

Last 30 days

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AudioTools Revenue

Last 30 days

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AudioTools Reviews

Transmission Loss module not included

The Transmission Loss module costs $45 in addition to the $20 app base price. This additional cost is not documented on the website or on the app’s App Store page. I would not have purchased the app if I had known the module I want to use was an additional $45.

Best audio test app, period

Works great, nothing else even comes close for iOS. Worth every penny. The folks complaining about cost have no clue. This is highly extensible professional software at a reasonable cost for basic, audio testing functionality. It’s tight integration with their hardware results in a accurate test instrument. Even when using a device’s built in mic, the app’s frequency and SPL compensation provide useful data. The idea that all of this professional functionality be provided for 20 bucks is nuts.

login problem

I pay and register; and it doesn’t allow me to login; even when I reset the password…

Disappointing

The features available on the modules contained on the initial price are basic/disappointing. Upgrade is required to access features that are otherwise available on some freeware available on the web.

Great must have app

This app has so many great tools I love it and use it at every show!

Real-Time Analyzer (RTA)

The RTA is most useful to me when I am the audio engineer for a live program. It is a great help in zeroing in on unwanted frequencies as well as frequencies that will improve the program.

terribly inaccurate

way way way way off and inconsistent. pretty bummed out that i spent $20 on this because its bad to the point of being completely useless. maybe it has something to do with newer devices having input ranges or something? not sure if that could be it because my ipad is a few years old and still has a TRRS jack, and i loaded up my mic calibration file that worked fine on my PC. I’m getting 50db readings a few feet from a speaker that is certainly putting out over 95db

It’s good but it feels outdated

It’s not like the science or math has changed or needs to be updated super often, but the workflow and UI definitely feels outdated now in 2023. I like the SPL graph but it’s pretty janky to set up. In the SPL dashboard, I can’t tell any way to rearrange the different modules I have, or resize them take the amount of space I want them to take.

Regular user

I’ve been using AudioTools for years. I rely on the FFT function to maintain listener comfort and clarity in my church on a regular basis.

It’s a scam.

Most of the apps need to be purchased separately

Store Rankings

Ranking History

Category Rankings

Chart	Category	Rank
Top Paid	Israel Music	7
Top Paid	New Zealand Music	7
Top Paid	South Africa Music	8
Top Paid	China Music	10
Top Paid	United States Music	26

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App Info

Last updated

4 days ago

AudioTools - dB, Sound & Audio

RTA, Acoustics Measurement SPL