May 16th, 2013· Although version 3.2 was built for Mac OS X 10.7 or later, the system requirements did not reflect this. This issue has been corrected.
· Cosmetic improvements.
April 19th, 2013· 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.
February 27th, 2013· FFT calculations are now performed with double precision (64-bit).
· Triggering works properly in the FFT Analyzer tool.
· An arbitrary solid color can be specified for the bars in the Octave, Meter Bridge, and Sound Level Meter tools.
· Several bugs that could potentially cause the app to crash have been corrected.
· Other minor and cosmetic issues have been addressed.
January 24th, 2013· 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.
August 7th, 2012· Built for Mountain Lion.
· Fixes several bugs.
April 25th, 2012· Maintenance release which corrects an issue that could lead to a crash when opening project without that project's audio device connected to the Mac. An issue with saved XY Plotters in the project file has also been addressed.
February 3rd, 2012· Corrects a crashing bug for Snow Leopard users.
February 2nd, 2012· Corrects an issue that halted live updates of bar meters and fixes a bug that could potentially cause the app to crash.
November 30th, 2011· Maintenance release.
March 16th, 2011· 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).
January 8th, 2011· 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.
November 12th, 2010· Channel count changes for multi-channel audio devices are handled dynamically, avoiding potential crashes.
· Several other minor bugs have been corrected.
May 27th, 2010· 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.
May 7th, 2010Version 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.
January 12th, 2010· A maintenance release that improves the stability of the application.
January 5th, 2010· 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.
September 18th, 2009· A maintenance release, which corrects data export problems in the DFFT Analyzer, which occurred when a window was applied to the impulse response.
· Also corrects some minor cosmetic issues.
September 4th, 2009· 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.
March 11th, 2009· 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.
March 11th, 2009· A maintenance release, which fixes a crashing bug associated with the Meter Bridge.
January 28th, 2009· A maintenance release, which fixes several bugs.
October 15th, 2008· 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.
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