AudioTools, dB, Sound & Audio 18.14 - 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: - 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. 18.14 3h ago AudioTools, #1 audio test and measurement app New in this release: -FFT: new Parallel mux mode analyzes every included mic at once and power-averages them -Mic calibration files now apply the whole correction curve, not just the first part -FFT: mic compensation follows the frequency axis when the scale changes -The FFT play/pause button shows the actual run state -Leaving FFT, Scope, Transfer Function or Amplitude Sweep now stops the analyzer -Fixed the dead "..." toolbar button on iOS 26 and 27 -Fixed the sidebar toggle hiding the category list -Fixed ghost menu buttons and the SPL Traffic Light header -SPL Pro and SPL Meter layout fixes on every iPhone -Support for new iPhone models -Calibration for the latest iPhone models -Faster plotting: Metal only -Built for the latest iOS -Bug fixes and stability improvements 18.12 Oct 1 AudioTools, #1 audio test and measurement app New in this release: -All Hyperion units now fully unlocked -Calibration support for the latest iPhone models -Removed all advertising and analytics tracking -Fixed the signal generator being silenced during Transfer Function measurements -The internal generator now stays quiet when an external generator is connected -Measurement popups are faster, correctly sized, and no longer clipped -Fixed weighting labels being cut off in SPL Graph and the SPL Dashboard -Fixed alerts and notices that could occasionally fail to appear -Remote SPL subscription handling improvements -Built for the latest iOS -Bug fixes and stability improvements 18.11 Sep 16 **AudioTools, #1 audio test and measurement app New in this release: -Increased GPS coordinate resolution in output TXT files to 6 decimal places -Fixed GPS location not being saved with measurements -Saved measurement files are now available in the Files app -Upgraded SPL Remote Logging for Environmental Noise reporting -SPL Traffic Light and Dual Traffic Light can now stream to the browser viewer, with 1/3 octave data -Bug fixes and stability improvements 18.10 Aug 22 **AudioTools, #1 audio test and measurement app New in this release: - Fixed a crash when clearing recalled graphs. Recalling a couple of graphs and then choosing "Clear Recalled Graphs" from the Save/Recall menu could crash in SoundScope, Transfer Function, and FFT — this is resolved. - Remote SPL Monitoring — easier setup. The setup screen now works properly on iPhone: it rotates to portrait so you can type comfortably, and the input fields stay clear of the keyboard. Tap View on Browser to get your account code and a QR code for opening the live viewer in any web browser. - Resolved an issue that could prevent Remote SPL subscribers from retrieving their account code - Remote SPL browser viewer improvements. The viewer now reliably shows your streaming devices, marks which are live, lets you scroll back through history, and switches cleanly between accounts. - LEQ mode added to Remote SPL Logging - Fixed the generator producing no sound in SPL Pro after using another tool first. Signal type, level and output are now set correctly each time a tool is opened. - Left / Right / Mono / Balanced output selection now works correctly in Scope, THD+N, Level and Generator. Mono and Balanced previously played on the left channel only. - Fixed the Level tool's generator starting at full volume instead of following the fader. - Fixed the generator switch showing "on" with no sound after leaving Scope. - Balanced output no longer reverts to Mono after switching away from the app with iAudioInterface2 connected. - Corrected Balanced output in SPL Pro at 24-bit — both channels are now driven with the correct polarity. - On audio interfaces with more than two outputs, outputs 3 and above are now silent instead of carrying stray audio. - SoundScope and Transfer Function now recover if the camera is interrupted by another app, and the camera no longer disturbs audio settings. - Improved audio engine reliability and memory handling during measurement. - Fixed the Apple TV Surround Generator not being found when connecting - Fixed LARSA playing pink noise, or no signal, through the Apple TV generator - LARSA no longer plays its sweep through the iPad when an external generator is driving - More accurate generator connection status -Bug fixes and stability improvements 18.9 Aug 11 **AudioTools, #1 audio test and measurement app New in this release: -Fixed iAudioInterface2 Mono/Balanced setting not persisting -Fixed FFT plot disappearing after changing channels -Improved grphics processing with new Metal engine -Fixed missing measurement tables in PDF reports -Fixed speaker tones stacking during Polarity and SPL tests -Improved FFT test tones for subwoofer measurements -Fixed saved subwoofer FFT plots drawing at the wrong level -Expanded FFT crossover point choices (80 Hz to 2 kHz) -Initial and Final tests now both appear on RSP System FFT plots -Multi-Channel RT/FR results now support Initial and Final measurements -Report groups all Multi-Channel results together, with change-vs-Initial columns -Fixed Impedance Sweep frequency scale after device rotation -Fixed truncated dB values in SPL Pro -Added HAA CinemaTools waterfall plot to multi-channel functions -Added true SPL level to Multi-channel FR plot -Improved FFT Normalization -Bug fixes and stability improvements 18.8 Jul 15 **AudioTools, #1 audio test and measurement app New in this release: -Added automatic unlock of in-app purchases on new devices -Added date discrimination for calibration file downloads -Bug fixes and stability improvements 18.7 Jun 20 **AudioTools, #1 audio test and measurement app New in this release: *New Module Added*: Thiele Small Loudspeaker Parameters, interfaces with *New Module Added*: Max Clean Subwoofer SPL -Added 24-bit WAV file mode to Recorder app -Added data for all completed tests to CSV file for LARSA, in addition to the summary -Bug fixes and stability improvements 18.6 Jun 16 **AudioTools, #1 audio test and measurement app New in this release: -Improved translations for many languages -Added Early Reflections module to RP32 checklist -Accessory Found messages now auto-disappear -Bug fixes and stability improvements 18.5 Jun 1 **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 May 26 **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 data@studiosixdigital.com 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

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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 18.14 and it was updated on 2026-10-18 11:44:59. See below the changes in each version.

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