AudioTools, dB, Sound & Audio 18.4 - App Store

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About AudioTools, dB, Sound & Audio

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,...

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

Version History **AudioTools, #1 audio test and measurement app New in this release: -Updated Chinese localizations -Added Multi-channel Early Reflections function -Improved calibration file detection -Updates to CinemaTools 18.4 3d ago **AudioTools, #1 audio test & measurement platform New in this release: -HAA CinemaTools Updates -Low SPL in-app purchase fix -Bug fixes and stability improvements 18.3 May 7 **AudioTools, #1 audio test & measurement platform New in this update: -Now includes various room target curves for reference and filter generation -Fixed compressed section headers on Mac -Improved subscription and in-app purchase handling -Bug fixes and stability improvements 18.2 Apr 12 **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 18.1 Apr 10 **AudioTools, #1 audio test & measurement platform Major New Update! -Added new Low SPL module to get lower SPL readings with 2 microphones -Added new LUFS Meter on Electrical menu with mono/stereo, calibration, UI, and file import analysis -Added K-weighting optopm to SPL Pro -Updated Gated Noise RT60 for 1/3 octave option and added 8k bands -Added warning in SPL Graph when starting a new test if an unsaved test is in memory -Fixes in HAA tools including in-app purchase status 18.0 Mar 18 **AudioTools, #1 audio test & measurement platform New in this update: -Added 1k-8k filter option to ETC -Fixes to Impulse Response plots -Fixes to iPrecisionMic gain ranges -Multiple HAA CinemaTools improvements -Bug fixes 17.33 Mar 5 **AudioTools, #1 Audio test and measurement platform New in this release: --Added HAA CinemaTools module -Fixed IR time axes -Incorporated SurroundPod -HAA, Fixed channel mapping when less than all 9.1.6 channels are enabled -HAA CinemaTools, Added screenshots for room layout, Transfer Function, LARSA, and Impulse Response -HAA CinemaTools, Improved report pagination -Fixed channel naming mismatches in HAA modules -Bug fixes and improvements 17.32 Feb 11 **AudioTools, #1 audio test & measurement platform New in this update: -Added Group Delay to Impulse Response -Restored missing Link button for AudioTools Wireless -New option for HAA CinemaTools module with HAA Link -Added support for SurroundPod ATMOS signal generator -Bug fixes and stability improvements 17.31 Jan 27 ** AudioTools, #1 audio test and measurement platform New in this release: * Fixed issues with in-app purchases not being processed correctly * Bug fixes and stability improvements 17.30 12/11/2025 *** AudioTools, #1 audio test & measurement platform New in this release: -Fixed font on SPL Meter -Fixed apparent freeze in SPL Pro after going to save files screen -Fixed possible crash in LARSA when in Delay mode, but using normal test signal -Added Cloud sync of in-app purchases so new installs will automatically register them 17.29 12/06/2025 **AudioTools, #1 audio test & measurement platform New in this update: -Corrected HAA subscription price display -Fixed all-in In-app purchase tier being incorrect during trial period -Fixed potential crash in ACU module -Fixed Ln values to not update while SPL Graph is paused -Improved SPL Dashboard GUI on iOS 26 -Includes initial release of HAA Link -Major HAA update. New Generator button allows connection to Apple TV Surround Generator, Hyperion Processor, or SurroundPod (coming soon). -Channel selection and pink noise signal playing is now controlled from a new panel with loudspeaker icons. -Bug fixes and stability improvements 17.28 11/24/2025 AudioTools, #1 audio test & measurement platform New in this update: - Corrected HAA subscription price display - Fixed potential crash in ACU module - Bug fixes and stability improvements 17.27 09/04/2025 AudioTools, #1 audio test & measurement platform New in this update: - Added Spanish translation - Added Priority Support option - Removed Expert Finder - Improved in-app purchase and subscription workflow - Bug fixes and stability improvements 17.26 08/27/2025 **AudioTools, #1 audio test & measurement platform New in this update: -Updated in-app purchase workflow -Bug fixes and stability improvements 17.25 08/25/2025 **AudioTools, #1 audio test & measurement platform New in this update: -Fixed dB level meter in Impulse Response -Fixed Files Viewer on Mac computers -Added new octave bandwidth mode option to LARSA filter editor -Corrected upgrade calculator to not include HAA Upgrade -Fixed SPL Graph Lock Graph button not changeable 17.24 08/14/2025 **AudioTools, #1 audio test & measurement platform New in this update: -Changed SPL Graph emails to send from [email protected] to comply with server restrictions -Fixed Dual SPL Traffic Light color changes to account for dB offset -Added support for new iOS versions calibration -Fixed mic range not storing and recalling for internal mic after force-quit 17.23 06/14/2025 **AudioTools, #1 audio test & measurement platform New in this update: -Fixed SPL Meter on iPad possibly not showing graphics on second run -Fixed possible missing overall 1/1 and 1/3 octave band data at some resolutions -Fixed internal issue with background email sends -Fixed mic high range not recalling for internal mic after app restart 17.22 05/28/2025 *AudioTools, #1 audio test & neasurement platform New in this release: -Fixed recalled FFT plot recall not using mic compensation -Fixed Transfer Function plot name and cursor colors not matching plot colors -Added the mic serial number to the missing calibration pop up -Fixed video capture causing incorrect SPL Graph dB readings 17.21 05/14/2025 **AudioTools, #1 audio test & measurement platform New in this release: -Added function to send WAV files to Surround Generator -Fixed case where Link to external AudioTools Wireless or Apple TV was being disabled -Improved Speaker Polarity GUI when +/- indicator changes -ETC: Improved dual cursor decay line readout by unlocking cursor from plot Y axis -LARSA: Fixed “Delete All Tests” not removing temp file with tests in it -LARSA: Improved external trigger mode response -LARSA: Fixed a crash after sending the app to the background while LARSA was open -HAA: SPL Pro now always starts in Slow decay mode -HAA: changed the default for all Ambient Noise items to NCB curve -HAA: Drawing Tool for LCR starts with Lock Rows option properly enabled 17.20 04/29/2025 ** AudioTools, #1 Test & Measurement Platform New in this version: -Added new subscription option for HAA Home Theater tools -Fixed SPL Pro display on Mac -Bug fixes and stability improvements 17.19 03/18/2025 ** AudioTools, #1 Test & Measurement Platform New in this version: -Added new subscription option for all-in -Apply custom comp file now works iCloud mode -HAA, fixed UI issues on room setup screen -SoundScope, added option to disable camera to help compatibility with some extern USB audio devices -Recorder now works with files stored on iCloud 17.18 02/04/2025 ** AudioTools, #1 Test & Measurement Platform New in this version:
-Added double-tap to reset SPL Meter Max -SPL Pro background video mode now sticky -Fixed in-app purchase restore function -Bug fixes in Transmission Loss -Restored 24-bit operation -Other bug fixes and stability improvements 17.17 11/07/2024 AudioTools, #1 Test & Measurement platform -Improvements to SoundScope -Audio system bug fixes 17.16 11/06/2024 ** AudioTools, #1 Audio Test & Measurement Platform -Added seat-to-seat test to FFT; Set octave mode, save and recall a reference test, select S-S on setup page. Max dB variation for 500Hz to 16kHz band is displayed referenced to first recalled plot -Added VR video and photo background image display to SPL Pro -Added option to ignore Studio Six Digital calibration database -Added display of start of notepad text to file info page on Save/Recall -Replaced Smaart Spectrum with in-house SoundScope VR tool with live video and photo VR with superimposed measurement data -Removed superfluous right arrow from Save/Recall table -Fixed possible crash in STIPA -Fixed bug where a custom calibration for on-device mic was not saved -Fixed an issue with iTestMic2 compensation files not downloading in some cases -Fixed “Rate this app” link not working -Improved general app stability 17.15 10/25/2024 ** AudioTools, #1 Audio Test & Measurement Platform -Added FFT seat-to-seat SPL option, compares to first recalled graph -Fixed IR recording issue in 24-bit mode -Fixed Rate this App link -Fixed an issue with iTestMic2 compensation files not downloading in some cases 17.14 10/09/2024

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Previous Versions

Here you can find the changelog of AudioTools, dB, Sound & Audio since it was posted on our website on 2016-09-27 09:26:06. The latest version is 18.4 and it was updated on 2026-06-23 03:25:47. See below the changes in each version.

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