Electroacoustics Toolbox

Category Tools / Analyzers & Meters
Version 3.8.3
Format App
Compatibility Electroacoustics ToolboxMacOS X Intel
License Commercial Software
Price $699  /  584€
Rating
Updated On Dec 11, 2015
Total Downloads 4,109
Mac Downloads 4,109

Dynamic Signal Analysis and Data Acquisition Platform

The Faber Electroacoustics Toolbox (FEaT) is a modularized, multi-channel multi-analyzer, offering real-time data acquisition and analysis of electrical, acoustical, and electroacoustic signals and systems.

FEaT brings powerful new tools to the Macintosh platform for multi-channel, audio-band data acquisition and real-time analysis of electrical, acoustical, and electroacoustic signals and systems. Electroacoustics Toolbox enables precision measurements of acoustic quantities, such as equivalent and time-weighted sound levels, as well as acoustic and electroacoustic systems, such as listening rooms and loudspeakers. The software is designed to work with any Mac-compatible audio hardware and supports multiple channels of 8, 16, 24, or 32-bit data with sample rates as high as the...
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The Faber Electroacoustics Toolbox (FEaT) is a modularized, multi-channel multi-analyzer, offering real-time data acquisition and analysis of electrical, acoustical, and electroacoustic signals and systems.

FEaT brings powerful new tools to the Macintosh platform for multi-channel, audio-band data acquisition and real-time analysis of electrical, acoustical, and electroacoustic signals and systems. Electroacoustics Toolbox enables precision measurements of acoustic quantities, such as equivalent and time-weighted sound levels, as well as acoustic and electroacoustic systems, such as listening rooms and loudspeakers. The software is designed to work with any Mac-compatible audio hardware and supports multiple channels of 8, 16, 24, or 32-bit data with sample rates as high as the hardware will support.

Electroacoustics Toolbox features:
Multi-channel Dual FFT Analyzer for transfer function and impulse response measurements of electrical, acoustical, and electroacoustic systems (filter circuits, listening rooms, loudspeakers, etc)
Multi-channel FFT Analyzer for real-time spectral analysis of input and output signals
Multi-channel Meter Bridge for a quick look at input signal levels
Multi-channel Oscilloscope for real-time viewing of input signal waveforms
Sound Level Meter for measuring instantaneous and time-averaged sound pressure levels
X/Y Plotter for creating Lissajous figures in real time
Signal Generator for real-time synthesis of various waveforms and test signals
Noise Dosimeter for convenient noise dose measurements
Hardware-accelerated OpenGL graphics for fast real-time plotting
Quartz-based graphics for high-resolution still images and prints
Advanced control over input and output devices
Device and individual channel calibration
Support for units, including Volts, Amps, Pascals, and Engineering Units
Saving complete configurations and data in project files
Exporting data to ascii text files for easy import into other applications
Work with multiple independent audio devices simultaneously
No arbitrary limits on how many devices or channels are used, or on sample rates or signal formats--these are limited only by your hardware
Modular architecture for rapid development of additional tools, with the potential to allow third parties to develop custom plug-ins
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Mac OS version 10.7 or later.
Electroacoustics Toolbox Electroacoustics Toolbox v 3.8.3 Dec 11, 2015 MacOS X Intel
An issue with channel sensitivity adjustments in the Meter Bridge and Sound Level Meter tools has been addressed.
When loading Room Analyzer tools from a project file, if a permissions error occurs for an audio file being used for analysis, an Open dialog will be presented with the file in question selected. Once the file is then manually loaded via the dialog, the permissions will be properly set for the next time the project is loaded. This is an issue with sandboxed copies of Electroacoustics Toolbox downloaded from the Mac App Store.
The Room Analyzer tool’s plotting is more reliable when loading the tool from a project file on recent versions of Mac OS X.
Faberacoustical Electroacoustics Toolbox Electroacoustics Toolbox v 3.8.2 Aug 27, 2015 MacOS X Intel
This update corrects an issue that could prevent captured data from being successfully exported from the Dual FFT Analyzer tool using the Export All command.
Faberacoustical Electroacoustics Toolbox v 3.8 Mar 3, 2015 MacOS X Intel
Versions 3.8 of SignalScope, SignalScope Pro, and Electroacoustics Toolbox for Mac OS now offer built-in support for USB measurement microphones from miniDSP and Dayton Audio as well as the model 333D01 USB accelerometer from Digiducer.

Each app directly supports the miniDSP UMIK-1 and Dayton UMM-6 USB measurement microphones. Sensitivity calibration data for these mics can be downloaded automatically, just by entering the mic’s serial number. Making calibrated sound level measurements is as easy as plugging in the UMIK-1 or UMM-6, typing in its serial number, and getting started with the analysis tool of your choice (the serial number only needs to be entered once, after which the app will remember the microphone sensitivity). An internet connection is required to download sensitivity information for the microphone.

Each of these apps also directly supports the Digiducer 333D01 USB digital accelerometer, and can automatically load serial number and sensitivity calibration information directly from the device. Making calibrated acceleration measurements is as easy as plugging in the 333D01 and getting started with the analysis tool of your choice.

Various bugs and potential instabilities in each app have been corrected.

These apps all require Mac OS version 10.7 or later.
real-time Electroacoustics Toolbox v 3.7 Dec 4, 2014 MacOS X Intel
All Faber apps for Mac OS received updates to improve their compatibility with Yosemite (Mac OS 10.10). Electroacoustics Toolbox 3.7, SignalScope Pro 3.7, SignalScope 3.7 and SignalSuite 4.7 are all 64-bit applications that have been built for Yosemite.

The Room Analyzer tool, available for in-app purchase in Electroacoustics Toolbox, now calculates room parameters in whole or 1/3-octave frequency bands from impulse response data that has been sampled at higher sample rates (88.2, 96, 176.4, and 192 kHz), in addition to sample rates of 44.1 and 48 kHz that were supported previously.

The Octave Analyzer tool, found in both Electroacoustics Toolbox and SignalScope Pro, also now supports the higher sample rates for real-time spectral analysis of input signals in whole or 1/3-octave frequency bands.

The Dual FFT Analyzer (only in Electroacoustics Toolbox) and FFT Analyzer tools now support additional dB vertical scale factors of 3, 6, 9, 12, 15, or 18 dB per division in the graphic display.

Various bugs and potential instabilities in each app have been corrected.
multi-channel Electroacoustics Toolbox v 3.5 Apr 17, 2014 MacOS X Intel
Version 3.5 of Electroacoustics Toolbox extends AppleScript support to the Room Analyzer tool (sold separately), which enables automated room acoustics analysis and data retrieval via AppleScript. Now, in addition to automating the acquisition of impulse response data, users can employ AppleScript to control the analysis of that data to extract relevant room acoustics parameters.

With increased automation capabilities, the Room Analyzer tool also now takes additional steps to verify the accuracy of acoustic decay time estimates, including T20, T30, T60, and EDT. For each of these parameters a nonlinearity value (in per mille, or parts per thousand) indicates how close the acoustic decay approaches a straight line, which is the basic assumption in reverberation time estimation. A nonlinearity value greater than 10 suggests that the user might want to take a closer look at the data to determine whether adjustments must be made to the integration limits for the decay curve to get a more accurate measurement.

Version 3.5 also addresses some issues, which include the following:

  • Room acoustics parameters are properly plotted across 1/3-octave bands in the Room Analyzer tool.


  • Radio buttons are properly deselected in the IR source drawer of the Room Analyzer tool when switching between Dual FFT or Oscilloscope measurements.


  • A bug has been addressed that could prevent the “Try” buttons in the project window from successfully opening a trial of the Noise Dosimeter or Room Analyzer tool.
  • signal Electroacoustics Toolbox v 3.4.2 Jan 28, 2014 MacOS X Intel
    All Faber apps for Mac have been updated to make more efficient use of resources. Two issues have been corrected which could potentially lead to excessive memory use.
    signals Electroacoustics Toolbox v 3.4.1 Nov 27, 2013 MacOS X Intel
  • This update addresses plot freezing issues on Mac OS 10.9 (Mavericks).


  • SLM and Octave Analyzer tools operate more efficiently.


  • A potential crash has been addressed in the Signal Generator tool.
  • input Electroacoustics Toolbox v 3.2 Apr 19, 2013 MacOS X Intel
  • Electroacoustics Toolbox now offers two additional tools for sale within the app. These new tools include a Room Acoustics Analyzer and a Noise Dosimeter (similar to the Dosimeter tool offered in earlier versions of the Toolbox).

  • • The new Room Analyzer tool employs the integrated impulse response method for calculating the acoustical parameters of a room. Schroeder reverse integration of the squared impulse response produces a decay curve, from which the Room Analyzer calculates reverberation time (RT60), early decay time (EDT), center time (Ts), clarity, and definition for the entire audio frequency band and in whole or 1/3-octave frequency bands.
    • The Noise Dosimeter tool measures daily noise dose according to standard methods (a calibrated measurement microphone is required to make repeatable, accurate measurements). The noise dosimeter offers criterion sound levels of 80, 85, and 90 dB with 3, 4, and 5 dB exchange rates.
    • Version 3.2 also fixes various bugs.
    download Electroacoustics Toolbox v 3.1.1 Feb 28, 2013 MacOS X Intel
  • Help files now open in the default web browser.

  • • Help is now available from within the app as a PDF file.
    • Spectrogram behavior upon loading from a project file has been improved.
    • The stability of all FFT-based tools has been improved.
    • Other minor and cosmetic issues have been addressed.
    mac Electroacoustics Toolbox v 3.0.5 Feb 2, 2012 MacOS X UB
    Version 3.0.5 is a maintenance release.
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    windows Electroacoustics Toolbox v 3.0.4 Nov 30, 2011 MacOS X UB
    Version 3.0.4 is a maintenance release.
    macintosh Electroacoustics Toolbox v 3.0.1 Mar 30, 2011 MacOS X Intel
    Corrects a bug that prevented proper saving of wave and AIFF audio files in the SLM and Signal Generator tools.
    Corrects an issue that could cause a crash when removing a Spectrogram tool from the current project (it typically occurred when closing a project).
    pc Electroacoustics Toolbox v 3.0 Mar 11, 2011 MacOS X Intel
    * Version 3 sports an improved user interface.
    * User preferences are available for individual tools.
    * Default audio device configurations, including channel labels, units, and sensitivity can be saved.
    * Virtual input channels can be added to audio input devices. Two-channel signal arithmetic (add, subtract, multiply) is now supported.
    * Arbitrary FFT lengths may be specified in FFT-based analysis tools.
    * Sound Level Meter and Octave Analyzer tools support percentile-exceeded sound levels.
    * Extended low-frequency support has been added to the Octave Analyzer.
    * The Spectrogram supports log frequency scales and real-time 3D spectrogram display.
    * Version 3 includes various other improvements over previous versions.
    * The Toolbox may now be purchased and maintained through the Mac App Store.
    Electroacoustics Toolbox v 2.1.10 Nov 12, 2010 MacOS X UB
    * Channel count changes for multi-channel audio devices are handled dynamically, avoiding potential crashes.
    * Several other minor bugs have been corrected.
    Electroacoustics Toolbox v 2.1.9 May 28, 2010 MacOS X UB
    * Output channels of certain multi-channel audio interfaces, such as the MOTU UltraLite mk3, are properly enumerated.
    * Audio device channel gains on certain devices, such as the Wavelength Proton USB DAC, are properly restored when opening project files.
    * The reference delay value in the Dual FFT Analyzer tool's function table is presented with greater precision.
    Electroacoustics Toolbox v 2.1.8 May 7, 2010 MacOS X UB
    Version 2.1.8 is a maintenance release that improves the stability of the application.

    * Dual FFT Analyzer: Added AppleScript access to the IR data window indices in the individual dual fft analyzer objects.
    * Dual FFT Analyzer: The windowed IR FFT length is now set somewhat arbitrarily to be as small as possible for the selected IR window. It is no longer constrained to be one of the user-selectable FFT lengths.
    * Dual FFT Analyzer: When the source or reference channel of a Dual FFT Analyzer channel gets set via AppleScript, the channel's sensitivity, units, and label values also get refreshed.
    * Dual FFT Analyzer: The time and time shift vectors are written with the correct (effective) sample period when data is exported to mat or text files.
    Electroacoustics Toolbox v 2.1.7 Jan 12, 2010 MacOS X UB
    Version 2.1.7 is a maintenance release that improves application stability.
    Electroacoustics Toolbox v 2.1.6 Jan 6, 2010 MacOS X UB
    * The Dual FFT Analyzer now supports user-definable time delay of the reference input for each live measurement.
    * A bug was fixed that led to a potential crash when computing an impulse response.
    * The recent projects menu gets updated properly again.
    * Impulse time weighting now passes the tone burst tests specified in ANSI S1.4.
    * Some AppleScript behaviors were corrected.
    * This release includes other minor bug fixes, stability enhancements, and cosmetic refinements.
    Electroacoustics Toolbox v 2.1.1 Sep 18, 2009 MacOS X UB
    Version 2.1.1 is a maintenance release, which corrects data export problems in the DFFT Analyzer, which occurred when a window was applied to the impulse response. It also corrects some minor cosmetic issues.
    Electroacoustics Toolbox v 2.1 Sep 4, 2009 MacOS X UB
  • Version 2.1 improves compatibility with Snow Leopard (Mac OS X, version 10.6).

  • • Transfer function measurements can be corrected by previous captured measurements.
    • Memory management and stability have been improved.
    • Product updates can now be automatically retrieved and installed.
    • Individual input channel calibration is now possible within the Device I/O Setup window.
    • Some oscilloscope triggering issues have been corrected.
    • Cross-correlation functions are properly normalized
    • Other minor bugs and cosmetic issues have been corrected.
    Electroacoustics Toolbox v 2.0.3 Mar 12, 2009 MacOS X UB
    Version 2.0.3 is a maintenance release, which improves the performance of the fractional octave band filters and fixes menu commands and keyboard shortcuts for the primary data cursor in the Octave Analyzer.
    Electroacoustics Toolbox v 2.0.1 Jan 29, 2009 MacOS X UB
    Version 2.0.1 is a maintenance release, which fixes several bugs.
    Electroacoustics Toolbox v 2.0 Oct 14, 2008 MacOS X UB
    New in version 2.0:
    - Drag and drop installation
    - Borderless analyzer windows
    - New mouse cursor types for more intuitive interaction with data displays
    - More efficient on and off-screen drawing
    - More efficient Spectrogram drawing over all time scales and FFT lengths
    - Improved page layout when printing
    - Improved support for Leopard
    - Improved channel selection--by checkbox or radio button
    - Arm/disarm individual tools in the project window, so that Start, Capture, and Export All commands affect only the desired tools
    - Dual FFT Analyzer
    ⁃ Harmonic cursors
    ⁃ Auto up-scale and auto down-scale for vertical plot scales
    ⁃ Option to synchronize changes in tables views across all rows
    ⁃ The normalized cross-correlation is normalized by the actual cross-correlation coefficient, rather than by the peak value of the cross-correlation function.
    - FFT Analyzer
    ⁃ Harmonic cursors
    ⁃ THD, THD+N, SNR
    ⁃ Auto up-scale and auto down-scale for vertical plot scales
    ⁃ Option to synchronize changes in tables views across all rows
    - Oscilloscope
    ⁃ Auto up-scale and auto down-scale for vertical plot scales
    ⁃ Option to synchronize changes in tables views across all rows
    - Signal Generator
    ⁃ Option to disable oversampling in the signal generator
    ⁃ Pan type selection in signal generator Preference pane
    ⁃ Support for Audio Unit signal generator plug-ins
    ⁃ Support for signal processing via Audio Unit effects plug-ins
    - Sound Level Meter
    ⁃ Input calibration
    ⁃ Impulse time weighting
    - New Meter Bridge
    ⁃ Behaves like a multi-channel Sound Level Meter
    ⁃ Time weighting
    ⁃ Frequency weighting
    ⁃ Input calibration
    ⁃ Input and/or output channel selection (including individual channel selection)
    - Enhanced AppleScript support
    - Start/Stop All tools from Dock menu
    - Dock icon indicates whether any tools are running
    - UI improvements
    - Support for user-defined unit labels
    - Numerous bug fixes and stability enhancements
    - Revised Help files
    Electroacoustics Toolbox v 1.2.1 Sep 6, 2007 MacOS X UB
  • Electroacoustics Toolbox now supports quasi-anechoic frequency response measurements.  The measured impulse response can be truncated (windowed), which will cause the transfer function measurements to be recomputed based in the shortened impulse response.
  • The Meter Bridge tool now correctly saves and restores its selected input device.
  • The Dual FFT Analyzer's auto-scale function always sets the vertical scale to 0.2 per division when viewing cross correlation data.
  • Using reduced frequency spans in the Dual FFT Analyzer could previously result in corrupted measurements when using the analyzer's built-in excitation signal.  This has been repaired.
  • Oscilloscope displays are more robust, particularly for large time scales.
  • The Spectrogram 3D display no longer gets reset when clicking the Stop All button in the project window.
  • Applescript is now supported by the feature-limited, 30-day demo.
  • Several other bugs have been fixed.
  • Electroacoustics Toolbox v 1.2 Apr 24, 2007 MacOS X UB
  • Electroacoustics Toolbox is now scriptable! Projects, measurements, data capture and export, and even displays can now be manipulated and automated via AppleScript.

  • - The project window has been enhanced with a toolbar and additional functions that are available within the project toolbox outline. Each tool now has its own icon, which can be added to the project window toolbar for one-click addition of new tools to the toolbox.
    - Controls have been added to send start/stop, capture, and export messages to all tools in the project toolbox.
    - Data can now be exported to MAT-files, in addition to ascii text files.
    - The Dual FFT Analyzer now includes a built-in signal generator to simplify the measurement process. The excitation signal can be configured in the Excitation tab in the analyzer window's Controls drawer.
    - The Dual FFT Analyzer now allows only a single live input channel to be selected, making single-channel autospectrum or autocorrelation measurements less cumbersome.
    - The Spectrogram display no longer draws a blank image when displaying large data sets in 2D Fast mode. Also, for some configurations, the 2D Fast mode is automatically selected/or deselected to ensure the display of a proper image.
    - The Spectrogram 3D surface plot is now clipped at the boundaries defined by the floor and ceiling values.
    - A new option in the Preferences, enables the user to choose whether Electroacoustics Toolbox should create a new project, open the most recent project, or prompt the user for a decision when it launches.
    - Electroacoustics Toolbox now supports a feature-limited demo mode, which does not require a serial number to activate.
    - Autoscaling of captured/paused data in the oscope and XY plotter works correctly
    - Eliminated a lockup, which could cause audio I/O to halt when a long FFT was being computed.
    - FFT and Dual FFT axis labels should be drawn correctly when viewing captured data, particularly when viewing time domain data in the Dual FFT Analyzer.
    - The XY Plotter window has a much smaller minimum size.
    - The Bartlett data window type is now implemented correctly.
    - Cross spectrum magnitudes are now scaled properly
    - Cross correlation functions are now normalized (equal to 1 at zero time lag)
    - A third tutorial has been added to the Help files.
    - Numerous improvements have been made to enhance the user experience and improve the stability of the application.
    Electroacoustics Toolbox v 1.1 Feb 22, 2007 MacOS X UB
    Improvements in this version include:
    New tool: Octave Analyzer
    New tool: Spectrogram Analyzer
    Data capture and export support have been added to the Sound Level Meter and Noise Dosimeter tools
    SLM and Dosimeter tools operate more efficiently
    Frequency weighting has been removed from the Dual FFT Analyzer
    The SLM now offers better handling of non-acoustic signals by displaying the correct units of the selected input channel
    Meter Bridge control states are properly saved in project files
    Fixed a bug which could cause a crash when opening a project containing an FFT Analyzer with A or C frequency weighting selected
    Project files created on a PowerPC-based Mac open correctly on an Intel-based Mac, and vice versa
    Several other minor fixes & improvements

    New Tools Included in Electroacoustics Toolbox 1.1:
    Octave Analyzer
    Features whole and 1/3-octave real-time spectral analysis using digital Butterworth bandpass filters, as recommended by ANSI Standards
    Supports calibrated sound level measurements in whole and 1/3-octave bands, including Lp, Lp_max, Lp_peak, and Leq
    Flat, A, and C frequency weighting
    Fast and Slow time weighting
    Supports non-acoustic signals with units other than Pascals
    Captures current spectrum for later review or export
    Spectrogram Analyzer
    Hardware-accelerated graphics with OpenGL
    3D data visualization with colorful surface and mesh plots
    Zoom and Pan controls for enhanced viewing of spectral data
    Trackball-style rotation of the data in 3D display mode
    Cursors for pinpointing spectral data as a function of time and frequency
    Cursor lines follow the data surface in time and frequency in the 3D view
    Multiple color schemes for visualizing the spectral data
    Captures current spectrogram data for later review or export
    Electroacoustics Toolbox v 1.0.2 Jan 3, 2007 MacOS X UB
  • Oscilloscope waveform drawing is much more efficient and stable (particularly for long time scales of 50 ms/div or greater)

  • Autoscale has been improved for linear-scale data, such as phase and group delay, in the Dual FFT Analyzer

  • Tutorials have been added to the Help

  • Project files in directories with spaces in the path name are properly added to the Recent Projects menu

  • Audio device selection in individual tool popup menus is properly restored from a project file when output-only devices are present

  • Frequency weighting has been removed from the Dual FFT Analyzer

  • Cursors no longer appear in the XY Plotter

  • Peak tracking is enforced when the FFT or Dual FFT analyzer is stopped

  • Toggle Analyzer menu item renamed to Toggle Tool On/Off

  • Phase is properly unwrapped before group delay is computed

  • Project files created on a PowerPC-based Mac open correctly on an Intel-based Mac, and vice versa

  • Includes several minor maintenance and cosmetic improvements
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