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  • #: 203000
  • Price: $19.99 In Apple Store
  • Category: Music
  • Updated: 2017-03-06
  • Current Version: 10.0
  • 10.0
  • Size: 27.70 MB
  • Language: English
  • Seller: andrew smith
  • Requirements: Compatible with iPhone, iPod touch, and iPad. Requires iOS 3.1.2 or later
  • © Andrew Smith
  •  Add to Favorite apps



AudioTools 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.


A 1/3 and octave band Real Time Analyzer. Includes touch-GUI range control, a cursor, max/min bars, and noise curve overlays.


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.


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. Also shows FFT and Schroeder curve.


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

What's New in Version 10.0

New! Added Dosimeter Module that measures noise exposure over time to OSHA and ISO standards. On Sale Now!

Gated Noise RT60
-Added screenshots

Transmission Loss
-Now supports screenshots
-Added live NC value calculation to Receiving Room screen

-Normalization curve matching point moved to 2kHz
-Fixed compensation handling on device rotate
-Improved error message when recalling a file that was stored with a sample rate different than the one in effect currently.

SPL Graph:
-Now when the graph image is saved using the button on the screen, or when autosaved, the image also includes the cursor and the cursor's octave or 1/3 octave plot if present.

-Fixed in-app Gated Noise buy issue
-Fixed Restore Purchases issue
-Minimum iOS version now 8.0

-Added support for downloading iTestMic2 frequency calibration files
-iCloud file transfer bug fixes
-Added file storage method to support email information

View iPhone screenshots | View iPad screenshots

iPhone Screenshots

AudioTools iPhone Screenshot 1

iPad Screenshots

AudioTools iPad Screenshot 1
AudioTools iPad Screenshot 2
AudioTools iPad Screenshot 3
AudioTools iPad Screenshot 4
AudioTools iPad Screenshot 5

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Rated 4/5 based on 2 customer reviews.


4/5 stars

VERY confusing product groupings and pricing

VERY confusing product groupings and pricing. Wanted to check my studio acoustics. After attempting to buy SMAART, ended up buying Audio Tools AND FFT. Maybe I just needed FFT. I don't know. The good news is it looks like FFT will do the job.

5/5 stars

Li Chard

I've purchased this App because I am an automotive NVH engineer working in China. I am training Chinese engineers, and this App is helping to show the spectral characteristics of various automotive sounds.
It is useful to do a quick check of approximate sound pressure levels. The App is good for technical people but is a little expensive for curious casual use. We have spent thousands of dollars and RMB to get software that does the same things this App does.
This is a good buy for engineering individuals looking for a portable analysis system.


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The information may be outdated (2017-03-08 17:25:22). For actual information go to iTunes

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