Beta Versions

Click here for the current release version

Beta version downloads are hosted at AV Nirvana, home of the REW support forum

Online help for the current beta version can be found in the Beta help files

V5.20 beta 25 3rd October 2019
  • Added shelf filters with adjustable Q for the Generic and miniDSP equalisers. Use Q = 0.7071 for the maximum monotonic shelf slope.
  • Change text colour for graph image comments on the graph depending on the graph background
  • Added an SPL figure to the Measure dialog level check result
  • When the ASIO secondary output is enabled select an output other than the primary output
  • When filter numbers are shown above the EQ window filter adjust graph only show numbers for filters that have an effect
  • Additional error reporting
  • Bug fix: CTA-2034 limits should be displayed for fundamentals up to 5 kHz
  • Bug fix: Zoom/measurement box on graph captures was drawn in the wrong position and did not use monochrome when the option was selected
  • Bug fix: Exported impulse response WAV files were shorter than they should be if the peak was less than 1 second from the IR start
  • Bug fix: Trace arithmetic 1/A or 1/B would fail if the trace being operated on only had magnitude data
V5.20 beta 24 11th September 2019
  • Added 1/A and 1/B as trace arithmetic operations - results will only be valid for measurements made over the full frequency range
  • Allow soundcard cal files for the Default output device (using the default device is not recommended)
  • Allow 2 decimal places for the impedance measurement sense resistor value
  • Use scientific notation for distortion percentages below 0.001% in the distortion graph legend
  • Bug fix: Mic cal file entries were not created for devices with mono inputs
  • Bug fix: The measurement trace on the EQ window should not update when the trace offset is changed unless "Add to data" is used
V5.20 beta 23 3rd September 2019
  • Added an option to use CRLF as end of line when exporting measurements as text on macOS or Linux so the files have better compatibility with Windows applications
  • Bug fix: The SPL measurement timing offset was also being applied to impedance measurements
  • Bug fix: Prevent the frequency bands stripe text labels overwriting each other on narrow graphs
  • Bug fix: Do not colour the frequency bands stripe in captured images if monochrome option selected
  • Bug fix: Do not colour the modal resonance lines in captured images if monochrome option selected
V5.20 beta 22 26th August 2019
  • Added an option to show the audio frequency bands above the graph for the SPL & Phase and All SPL graphs
  • Allow Soundcard calibration measurement names to be changed
  • Bug fix: Measurement trace on RTA window did not update when trace offset was changed
UMIK-1 miniDSP UMIK-1 calibrated USB measurement microphone
EMM-6 Dayton Audio EMM-6 calibrated analog measurement microphone
UR22 MkII Steinberg UR22 MkII USB audio interface
Scarlett Solo Focusrite Scarlett Solo USB audio interface
miniDSP 2x4 HD miniDSP 2x4 HD DSP / Equaliser / USB DAC / crossover
DE (Hong Kong)
V5.20 beta 21 20th August 2019
  • Bug fix: In beta 20 mic cal files with "sensitivity" in a line in the file could cause an exception
V5.20 beta 20 19th August 2019
  • Added support for 768 kHz on ASIO. Tested for replay (ADI-2 DAC) but not for capture.
  • When calculating target level for a Full range target use the measurement data from 200 Hz to 2000 Hz rather than from the LF cutoff to 2000 Hz
  • Added support for a sensitivity figure in analog mic cal files. Format is: Sensitivity -12.3 dBFS where the dBFS value is the input level REW sees when the mic sees 94 dB SPL. Note that it will only be valid for the input gain and input volume settings that were used when the sensitivity was measured.
  • Changed RTA save buttons to use a save icon instead of a save as icon
  • Bug fix: RTA peak sample display was incorrect
  • Bug fix: 192k capture could fail to start
V5.20 beta 19 12th August 2019
  • Added miniDSP EARS as a recognised USB mic, EARS gain is extracted from the device name - if the gain is changed disconnect and reconnect EARS and restart REW so the new gain is picked up
  • Allow tone generator harmonic distortion levels down to -150 dB
  • When an input or output device is selected automatically select the first input or output rather than selecting default
  • When prompting for USB mic cal data show a mic calibration files dialog rather than showing a file chooser directly
  • Added a "Close" button to the cal files dialog
  • If FlexASIO is being used and a UMIK-1 is connected assume the selected FlexASIO input is the UMIK-1
  • Removed the 1.5GB memory allocation option for Windows 32-bit installations as likely to result in the application not starting
  • Bug fix: Saving a soundcard calibration measurement as a cal file was not updating the cal file entry
  • Bug fix: Plotting of modal resonances from the resonance analysis pane was broken in beta 16
V5.20 beta 18 4th August 2019
  • Don't show zero volume warnings if Suppress Soundcard Errors is selected
  • Bug fix: Scope math traces could be clipped
  • Bug fix: Stop windows selected from the menu being pushed behind the main window
  • Bug fix: Changing graph while loading measurements could cause the legend to show the wrong trace names
  • Bug fix: Devices with no input channels could appear in the mic cal files list
  • Bug fix: Cal files were not being restored on next startup if "Separate cal files for each input" was used
  • Bug fix: USB mic cal file sensitivity data was not processed until the next startup or input change when the cal file was loaded using the Browse button
V5.20 beta 17 29th July 2019
  • Added Alt+C as a shortcut for the graph capture button
  • Added a warning that Default input cannot be used for SPL calibration
  • Added a message on the Cal Files preferences to select an input device and input if they have not been selected
  • Bug fix: Manual SPL calibration was not working properly in beta 16
  • Bug fix: RTA distortion panel did not show results if the signal generator had not been displayed
V5.20 beta 16 27th July 2019
  • Calibration files for soundcards are now linked to the output device name and the sample rate, the required file will be loaded automatically if the device or sample rate change provided it has been specified
  • Calibration files for input devices (microphones, SPL meters, ...) are now linked to the input device name and the input channel, the required file will be loaded automatically if the device or channel change provided it has been specified
  • All calibration files can be viewed on the Cal Files preferences tab (replaces the Mic/Meter settings tab)
  • The files that will be used for the current measurement can be viewed/changed using the Cal Files... button on the Measure dialog
  • The soundcard calibration file is not used when playback is from file
  • Added number of samples to the cumulative IR shift figure in the Impulse graph controls and the IR delay estimate dialog
  • When highlighting a trace (by placing the mouse cursor over its name in the legend) fade other traces to help it stand out
  • Redisplay level meters if they were showing before an ASIO I/O change
  • Added ASIO secondary output selector on the Soundcard preferences
  • Bug fix: Signal generator level adjustment wasn't working if the "Full scale sine rms is 0 dBFS" option wasn't selected
  • Bug fix: When using ASIO4All the default Windows recording device would be shown as not available
  • Bug fix: Menu bar was duplicated on macOS which could lead to odd behaviour
  • Bug fix: Adjust RTA levels should not affect the values in the RMS input levels panel
  • Bug fix: Output level unit selection was not updating when changed from another output level control
V5.20 beta 15 8th July 2019
  • Bug fix: Measuring with multiple sweeps was broken
  • Bug fix: "Drop small filters" could drop manual filters when using the manual optimisation controls
V5.20 beta 14 7th July 2019
  • Added Analysis options to automatically correct any difference between the input and output clock rates when using an acoustic timing reference or when using a loopback as a reference
  • Added manual clock adjustment in the Impulse graph controls
  • Soundcard calibration measurements check for and correct input/output clock rate mismatch
  • Use longer sweeps for soundcard calibration at higher sample rates
  • Added a headroom figure on the filters panel showing the impact of any overall gain in the filter set
  • Added a display of the cumulative IR shift in the Impulse graph controls
  • If changing from one graph with frequency as X axis to another keep the cursor at the same frequency (if within the graph span)
  • Bug fix: Trace offset was not taken into account when shifting SPL axis to bring trace into view
  • Bug fix: Sweep lengths that were too short for the selected sample rate could be chosen (e.g. 128k sweep at 192 kHz sample rate), that is now prevented
V5.20 beta 13 24th June 2019
  • Updated sweep file version number and added check that files loaded are the current version before using them
  • Changed input and output scaling controls to use "FS sine" instead of "0 dBFS" so the figure is independent of the "Full scale sine rms is 0 dBFS" setting
  • Generator voltage level display now uses V, mV, uV or nV according to the value. Values change in steps of 0.1 dB when using the arrow buttons.
  • Added an option to capture the graph image in monochrome, using 4 different line styles instead of different colours
  • Added an option on Linux to force stereo access to audio interfaces with Java drivers as some interfaces may report they support multichannel at the requested sample rate but may not operate properly
  • Start the SPL meter automatically when it is opened
  • Pressing Cancel while a measurement is in progress stops the measurement but now doesn't close the measurement dialog
  • Bug fix: Stepped sine dialog did not allow 0 dBFS level when the "Full scale sine rms is 0 dBFS" option was selected
V5.20 beta 12 11th June 2019
  • Replaced the RTA "DR" figure by A-weighted noise plus distortion in the current Y axis units
  • Added a basic scope data export capability
  • Bug fix: Predicted response was not updated correctly when loading a measurement with filters
  • Bug fix: Measurement sweep could be shorter than intended for some combinations of start frequency, end frequency and total length
  • Bug fix: RTA file processing would not give a result for files the same length as the FFT length
  • Bug fix: When processing files the RTA sample rate remained at the rate of the first file processed
  • Bug fix: The All SPL button to "Average the Responses" was disabled when an averaged measurement was selected
  • Bug fix: An exception could occur while calculating the impulse response
V5.20 beta 11 3rd June 2019
  • Added 192 kHz to the list of Java sample rates for all platforms and made changes to improve behaviour at 192k
  • Restore the previous generator signal selection after checking levels, doing a soundcard calibration or making a stepped sine measurement
  • Increased the measurement name field width on wider screens
  • Include the zoom box on graph captures
  • Changed the Predicted response on the Filter Adjust graph to use the windowed rather than the full IR
  • Changed the Predicted response on the Filter Adjust graph to reflect the equaliser selection's fixed sample rate rather than adapting to the measurement rate
  • Added a view preference to control whether phase wraps are shown with dashed lines or not at all
  • Revised the dialog for exporting distortion data as text for stepped sine data
  • Added triple tone signals to the generator
  • Added TDFD presets to the dual tone signals
  • Allow dual and triple tone frequencies up to half the sample rate
  • Added options to specify the period of tone bursts in cycles, milliseconds or samples (binary powers to match FFT lengths)
  • Reduced minimum bandwidth for custom filtered random noise to 1/3 octave or 10 Hz, whichever is greater
  • Reduced minimum bandwidth for custom filtered periodic noise to 10% or 10 Hz, whichever is greater
  • Show a message if REW has changed the RTA window to Rectangular for multitone TD+N calculation
  • Expanded the dither bit depth choice to cover all values from 16 to 25 bits
  • Added ASIO sample format display in the status bar. Note that the data bit depth is often lower than the sample format allows, REW shows the detected bit depth for input data based on the data values received
  • Added two more date format options for measurement naming
  • Added the input device to the input name shown in the title of the RTA, SPL meter, Scope and SPL Logger windows
  • Show the output device and output in the title of the signal generator window
  • Added in-band (22.4 Hz to 22.4 kHz) and out of band (> 22.4 kHz) levels to the RTA levels panel
  • Add the RTA levels panel to RTA image captures
  • Show the peak input SPL before clipping in the main window status bar
  • Added an equaliser entry for the miniDSP C-DSP 8x12 DL, 10 filters at 48 kHz
  • Bug fix: When using Java drivers switching to an output device with fewer channels than the current output device would cause an exception
  • Bug fix: Filtered IR could get stuck in a loop when changing time reversed or zero phase setting
  • Bug fix: File playback did not accept sweep files that had the timing reference in one channel and the measurement sweep in the other
  • Bug fix: Measurement sweep end frequency was limited to 96 kHz even if the sample rate was above 192 kHz
  • Bug fix: Sig gen output level spinner was being updated twice if the "Full scale sine rms is 0 dBFS" setting changed
  • Bug fix: Sig gen output level peak value was incorrect if the unit was not dBFS and "Full scale sine rms is 0 dBFS" was selected
V5.20 beta 10 9th May 2019
  • Changed stepped sine silence interval to be in seconds, allowing up to 60 seconds before the next tone starts
  • When the timing mode is loopback echo the signal generator output on the timing reference output for all signal types
  • Added a control for trace thickness on the graph image capture dialog
  • Fixed the menu on macOS so it stays visible for all REW windows
  • Use the native file dialog on macOS to choose the folder for exporting all measurements as text
  • Show a warning if the input channels appear to have been swapped for impedance measurements being used for TS parameter calculations
  • Allow up to 200 kHz span for frequency axis
  • Added support for importing impulse responses that were exported as text
  • Set macOS default for always on top window states to false to avoid a Java bug that causes the windows to disappear on restore if the Dock preference "Minimise windows into application icon" is selected
  • Removed fade in from linear part of measurement sweep to increase LF level and suppress LF noise
  • Added a 22-bit dither setting
  • Bug fix: VU meter RMS area wasn't wide enough for levels below -99.9 dB on macOS
  • Bug fix: On macOS windows were not being restored to their last used sizes
V5.20 beta 9 28th April 2019
  • Reduced warning threshold for timing reference to -45 dBFS (from -30dBFS) and only show the warning once in a session
  • Added a window selection for the stepped sine dialog, Rectangular recommended when the generator and input are on the same device
  • Added an option to show or hide the filter numbers along the top of the EQ window's filter adjust graph
  • Added a warning in the help about using long sweeps if input and output are not on the same device due to potential problems from sample clock differences
  • Added a soundcard input impedance setting on the Measure dialog for impedance measurements
  • Added View preferences for keeping the SPL meter, VU meters and signal generator on top of other windows
  • Bug fix: Output level control didn't increment or decrement properly on the volts scale for small voltages
  • Bug fix: If a measurement was opened while on the waterfall or spectrogram graph the waterfall or spectrogram would be generated but not displayed
  • Bug fix: Timing signal detection could fail despite good signal level
  • Bug fix: Waterfall and spectrogram generation could be incomplete on some devices
  • Bug fix: Stepped sine did not operate correctly with 0% overlap for FFT lengths above 64k
  • Bug fix: UMM-6 volume compensation was incorrect on macOS
  • Bug fix: SPL limit on Measure dialog couldn't be adjusted
V5.20 beta 8 9th April 2019
  • Don't show smoothing selection on captured graph images, any smoothing selected can be seen in the legend if included
  • Improved positioning of data panels on captured graph images and reduced panel opacity
  • Added an option to include date and time on graph captures
  • Improved icon resolution on macOS retina displays
  • Added a set of icons for the dark colour scheme
  • Windows installers now provide an option to allow multiple instances
  • Windows installers prompt to download a Java runtime during installation if one is not available rather than including it in the installer
  • Updated to JRE 1.8.0 build 202
  • Bug fix: Some Scope settings were difficult to read when using the dark background
  • Bug fix: If the input device did not provide any data it could be difficult to quit the Measure dialog
  • Bug fix: Timing offset controls were overlaid on RLeads control if timing mode was loopback before selecting Impedance measurement
  • Bug fix: Timing offset controls were disabled when measuring from file
  • Bug fix: Graph capture comments were not being wrapped properly
  • Bug fix: Soundcard calibration result notes were missing
  • Bug fix: If FDW was enabled by default the cal files were not applied when the measurement was generated, but would be applied on any subsequent window application
V5.20 beta 7 28th March 2019
  • Redesigned the Measure dialog and provided better support for measuring using file playback
  • Removed "Wait for timing ref" option on Measure dialog, if acoustic timing reference is being used REW will always wait for the timing ref signal
  • Added a timing offset that is applied to measurements made with a timing reference. The offset can be set manually or from the figure calculated by Estimate IR Delay
  • Added a warning if the timing reference signal is low
  • Added a 2-channel oscilloscope tool, renamed the old 'Scope' graph to 'Captured'
  • Added white random noise to the signal generator
  • Added an option to specify signal generator toneburst in ms rather than cycles
  • Added configurable filter order (from 2nd to 8th) for the signal generator custom filtered noise high pass and low pass filters
  • Signal generator now remembers the states of the custom filtered noise check boxes for the next startup
  • Signal generator shows peak level as well as RMS
  • Added 0% as an option for the RTA max overlap to allow no overlap when beneficial (such as when measuring with rectangular windows)
  • Added a separate max overlap control for stepped sine measurements, lower overlap increases the noise reduction from averaging
  • Added a volts per sqrt(Hz) Y axis option to the RTA to display the amplitude spectral density
  • Reduced width of RTA control buttons so it is useable at widths down to 800 pixels
  • Added a "Set t=0 at cursor" control to the impulse overlay graph, applies to all selected impulses
  • Added an equaliser setting for the miniDSP C-DSP 8x12 with 10 filters at 192 kHz sample rate
  • Made RT60 calculation much faster
  • Made loading measurement files faster
  • Multiple sample rates can be selected when exporting filter impulse responses
  • Don't show a dB axis on Overlay Measured or All Impedance when only impedance measurements are loaded
  • Added option in installers for all OS types to choose how much memory to allocate to REW when it runs, max 1.5 GB on 32-bit versions
  • Draw gradient panel background image even wider than before in another attempt to remove duff columns of pixels at RHS of window on macOS
  • Bug fix: macOS windows that were maximised then iconified before exit would open with zero size on the next startup
  • Bug fix: Generator dBV offset was incorrect when the option for full scale sine is 0 dBFS was not selected
  • Bug fix: periodic noise crest factor optimisation was not operating correctly
  • Bug fix: ASIO output did not stop correctly with ASIO buffer sizes of 8192 samples or larger
  • Bug fix: Text in new version notification was too light to read when using dark background
  • Bug fix: Sig gen output was on meas and timing ref outputs for all signal types when timing ref mode was loopback, should only be for meas sweeps
V5.20 beta 6 20th February 2019
  • Added CTA-2034-A shaped noise signals to the signal generator
  • Added a control to select either CEA-2010 or CTA-2034-A max SPL limits on the RTA
  • Removed the spkr cal and sub cal options for white periodic noise, only applicable for pink
  • Expanded graph capture aspect ratio options to include 10, 25 and 50 dB/decade
  • Put font size control for graph capture into the graph capture dialog, added separate font size control for the comment
  • Added comment position and comment alignment controls to the graph capture dialog
  • Signal generator settings for WAV repetitions and WAV duration are remembered for next startup
  • Added the first order low and high pass filters to the miniDSP equalisers
  • Set default for allow log spacing back to False
  • Added an option to show the measurement notes in a tooltip when the cursor is over the measurement name in an overlay graph
  • Exported filter impulse responses now start at sample zero rather than sample 2
  • Imported impulse responses are padded with additional zero samples before and after the response if the peak is near the start of the response
  • Added ability to drag and drop audio files onto the RTA for processing
  • Bug fix: Changing equaliser type could generate an exception
  • Bug fix: Loading a measurement could fail for some equaliser settings
  • Bug fix: Fractional octave smoothing of log spaced data could produce incorrect values at the start of the plot
  • Bug fix: Cal file phase corrections should not be applied to the min phase response
  • Bug fix: graph image capture width was not saved for next startup when copying to clipboard
  • Bug fix: Graph legend layout was not updated properly for the chosen graph capture font
  • Bug fix: Overlay SPL graph showed an Ohms axis on the RHS when it was not required
  • Bug fix: IR peak interpolation could miss the interpolated peak and use the sample peak in some circumstances
V5.20 beta 5 1st February 2019
  • Revised the EQ target setting panel to better explain the target types and separate the room curve controls, which can be separately enabled/disabled
  • Added a check box to enable/disable room curve settings
  • Added a "Speaker driver" target type with configurable low and high pass crossover filter responses
  • Added LP1 and HP1 filter types to the Generic equaliser to provide first order (6 dB/octave) LP and HP
  • Expanded the equaliser selection help to add a table of Q values to use with LPQ/HPQ filters to implement crossovers up to 8th order
  • Allow up to 8 subwoofers in the room simulator
  • Added a multitone decade fraction spacing option
  • Added a 1/48 octave option for multitone octave fraction spacing
  • Graph capture can now either save the image to file or copy it to the clipboard
  • Added a "Preview comment" button to the graph capture dialog
  • Step response calculation uses the windowed IR (including FDW if applied)
  • Main window comes to the front if a menu item is selected
  • Waterfall frequency resolution figure (to right of window width control) now takes into account the rise time
  • Window width, rise time and frequency resolution of the waterfall now appear in the top right corner of the plot
  • Do not show the distortion low pass/high pass overlay shading on the RTA when using dual tone or multitone test signals as they do not apply
  • Added a workaround for a Windows Java bug preventing proper display of Chinese characters in Audio device names, should also help with other non-latin character sets
  • If a recognised USB mic is selected as the input device automatically select the input as well so that the volume control is accessible
  • Removed -100 dB lower limit for magnitude values in imported responses
  • Reference input selector is shown on the Measure dialog when measuring impedance
  • Secondary output selector is not shown on the Measure dialog when measuring impedance when using ASIO
  • Use 4 decimal places on Distortion graph for distortion values below 0.01 %
  • Added support for importing COMSOL impulse response text files
  • Set default for the "Allow 96 PPO log spacing" analysis preference to be selected for new installations to reduce memory use and file size
  • Further reductions in memory use
  • Changed the installer application name from Room EQ Wizard to REW, affects the program group name and the shortcut name
  • Bug fix: Check levels could fail on the Measure dialog for some sweep frequency spans
  • Bug fix: Results of trace arithmetic on imported audio data would not generate waterfalls or spectrograms
  • Bug fix: Prevent multiple prompts for "Assuming a UMIK" when using ASIO4All and a UMIK is connected but it doesn't appear in the list of ASIO4All inputs
  • Bug fix: Maximum end frequency for sweep was not initialised correctly when Measure dialog was first shown
  • Bug fix: Spectrogram plot start frequency took account of lowest valid frequency for windowed IR instead of depending only on spectrogram window
  • Bug fix: Previous sample rate was not restored on the next startup
V5.20 beta 4 7th January 2019
  • When measurements with distortion data are averaged using (A+B)/2 or Vector average their distortion data is also averaged, providing the measurements were made at the same sample rate and with the same sweep or stepped sine settings
  • Added a Window function setting for the tone burst generator with a range of window types
  • Reduced memory use and file size for sweep measurements
  • Added Float as a format for exported WAV files
  • Additional text for graph captures is now placed above the graph and can be styled using HTML
  • Added a View preference to show user-defined watermark text on all graphs and graph captures apart from waterfalls and spectrograms
  • Replaced the Tukey 10 ms window by a Tukey 0.01 (1%) window
  • Added a soundcard preference to choose random or periodic pink noise for level checks
  • Bug fix: Saving signals to WAV did not work for signals which used the duration control
  • Bug fix: Saving a signal with repetitions to WAV could fail if the output file was very large
  • Bug fix: Sweep level control was not listening for changes to the "Full scale sine is 0 dBFS" preference
  • Bug fix: Dither could be added to the multitone test signal even if the Add dither box was not selected
  • Bug fix: An exception could occur when using the EQ window with a measurement that did not have an impulse response
  • Bug fix: Ensure graph title fits within the graph width if capturing a graph image including the title
  • Bug fix: Level checks using pink PN were selecting the full range signal instead of the sub or spkr cal signal
  • Bug fix: Installer JRE download links were incorrect
V5.20 beta 3 3rd January 2019
  • Restored 16k and 32k sample rate options for sig gen WAV files and filter impulse response exports
  • Update the sample rate selector when reloading the ASIO driver
  • Added an option to plot distortion harmonics at the harmonic frequency rather than the fundamental frequency
  • Update dBFS scaling for signal generator and RTA when focus leaves the dBFS scale field
  • Restart any ASIO audio I/O after changing input or output channels
  • If a graph capture includes the legend it will use the graph capture font configured in the View preferences and the legend will only include traces that are on the graph
  • When exporting filter settings as text use 2dp for frequencies below 100 Hz and 2dp for gain
  • Improved rendering of waterfall time slice labels on macOS
  • Changed Stepped sine button shortcut to Alt+N
  • Use rectangular window for stepped sine measurement (test tones are aligned to FFT bins)
  • After starting the RTA or changing the FFT length averaging does not begin until a full FFT length of data has been received, plus the lengths of the input and output buffers
  • If the selected measurement is outside the area of the SPL & Phase graph shift the graph to make the measurement visible
  • Disabled control of input or output volume from Soundcard preferences on macOS, macOS only permits values corresponding to specific dB increments which vary according to the device and its volume range. Use Audio MIDI Setup to control volume settings.
  • File preview only shows the first measurement for very large MDAT files (>100M)
  • Added option in the 64-bit Windows installer to choose how much memory to allocate to REW when it runs
  • Added option at end of installer to launch REW
  • Added options in the uninstaller to delete REW preferences and the REW log files directory
  • Changed the macOS installer to install to a directory so that the uninstaller can be included and the roomeqwizard.vmoptions file is more easily accessed
  • Bug fix: Calibrate soundcard wouldn't work on macOS
  • Bug fix: If the sig gen had not been launched calibrate soundcard would fail to play the 1kHz tone and check levels would not work
  • Bug fix: Output level was not shown on VU meter when measuring with a 4M sweep
  • Bug fix: THD percentage or dBr figures in the graph legend did not use the harmonic frequency as the reference when that option was selected but the plot was not normalised
  • Bug fix: The reference measurement trace on the RTA window was plotted using the system SPL offset rather than the offset from the selected measurement
  • Bug fix: Stepped sine fundamental and harmonics could be drawn at the wrong position when the RTA axis was volts or watts
  • Bug fix: REW V3 measurements could not be loaded
V5.20 beta 2 8th December 2018
  • Gave the signal generator a revamp and added a signal waveform preview
  • Added fade in and fade out controls to the linear and log sweep signals
  • Added AES17-2015 MD and DFD presets to the dual tone signals
  • Changed sig gen level control behaviour for dual tone signals, the level setting now reflects the rms level of the combined signal rather than the rms level of f1
  • Added a selection of multitone test signals
  • Allow RTA lengths up to 1M
  • If the RTA update interval is more than 1 second show the percentage progress for the next update on the record button
  • Provide separate buttons in RTA to save current, peak and both traces
  • Added dBu and dBV RTA Y axis options and a level calibration capability
  • Added dBW RTA Y axis option and a control for the reference resistance for the dBW values
  • Added an option to show RTA distortion ratios as either percentages or dB
  • Expanded the RTA IMD results to include Total Distortion + Noise
  • Added RTA figures for Total Distortion + Noise and SNR when using the multitone test signals
  • Added two Dolph-Chebyshev RTA window options, with side lobes 150 dB down or 200 dB down
  • Added an A weighted dynamic range figure to the RTA THD results
  • Added a display of the peak sample value in the RTA rms input levels box
  • Determine a more accurate value for the IR peak when it lies between samples
  • Improved precision of Estimate IR Delay
  • Made the acoustic timing reference delay estimates more precise
  • Improved inter-sample rendering of impulse responses so the waveform retains the same shape regardless of fractional sample offsets, to achieve this the IR is oversampled using a method selected by the new IR oversampler option in the Analysis preferences.
  • Changed behaviour while capturing the noise floor before a sweep measurement. Used to play a 1 Hz sine at -150 dBFS, then stop the generator and start it again to play the measurement sweep. Now dithers the lsb before the sweep starts without having to stop and start the generator. Should help ensure digital inputs are active and locked to the generator before the sweep starts and prevent issues with audio drivers due to rapid stopping/restarting of the audio lines.
  • Decay, waterfall and spectrogram plots generate automatically when the graph is selected
  • Added a button in the Impulse graph controls to set t=0 at the cursor position (also activated by Alt+z when the control is visible)
  • Added a button in the Impulse graph controls to set t=0 at the IR start (also activated by Alt+y when the control is visible)
  • Added a button in the All SPL graph controls to set t=0 at the IR start for all the currently selected measurements
  • Added an option to normalise the step response to the IR peak value rather than the step response peak value
  • Changed the Merge operation to use the window settings of the B (low frequency) trace rather than the A trace
  • Show more decimal places on the window reference time as it gets closer to zero
  • Added an option to export the impulse response with EQ filters applied
  • Changed the Analysis options for setting t=0 to use either the IR peak, the start of the IR (based on it first exceeding 10% of the peak level) or the estimated IR delay
  • Added 2M and 4M sweep options, useful for improving signal to noise on high sample rate measurements
  • When importing impulse responses disabled the feature that rotated the peak to the middle of the data if it was found very close to the start of the data
  • Added all-zeroes check for imported audio files
  • Switched level checks to using Pink PN instead of random pink noise for faster and more accurate level readings
  • Persist the choice of sub or main speaker for levels check in SCSettings
  • Improved rendering of scope traces
  • Made the legend panel right click menu available in all graphs, not just overlays
  • Show a warning if the timing reference peak level is high
  • Increased span of level meters in soundcard preferences to 100 dB
  • Added a note in the View preferences to identify settings that are applied after restart
  • Removed heading text from TS parameters results panel to reduce height of window
  • Added a View preference for the font size used for graph axes in graph image captures
  • Reapply ASIO sample rate after reloading the ASIO driver
  • REW now requires a Java 8 JRE, Java 7 is no longer supported
  • Bug fix: FDW phase correction for win ref time offset from zero was inverted
  • Bug fix: Generating a min phase measurement did not take account of any frequency dependent window applied
  • Bug fix: Mouse wheel zoom did not maintain aspect ratio when zooming out
  • Bug fix: Input name disappeared from RTA window title when settings were changed
V5.20 beta 1 1st October 2018
  • Increased audio data timeouts for macOS to accommodate 10.14 Mojave delays in granting audio access
  • Changed text for checkbox to lock sine gen frequency to RTA FFT length and included the FFT length in the text
  • Added Preferences menu entries to set the REW main window to a selection of predefined sizes
  • Bug fix: If not setting t=0 at IR peak the win ref time was not being reset after estimate IR delay, causing incorrect phase for FDW
  • Bug fix: SPL meter value would stop updating after a measurement if the Levels meter was open
V5.19 beta 12 9th August 2018
  • Improved rendering of text on spectrogram graph images when spectrogram floor is filled
  • Small refinement to the IR start detection code
  • Changed delay figure with acoustic timing reference back to using IR start time for limited bandwidth measurements (e.g. subwoofers), retained use of the Estimate IR Delay process otherwise
  • Bug fix: Added checks to try and prevent occasional exception when opening the EQ window
  • Added Leq traces for the last minute and the last 10 minutes to the SPL logger
V5.19 beta 11 21st July 2018
  • Added Leq traces for the last minute and the last 10 minutes to the SPL logger
  • Added * in front of comment lines in the impulse response text export file and a * Data start comment immediately before the data
  • Trim trailing zeroes when exporting impulse response as text with window applied, but note that the data will be padded with zeroes so the length is a binary power if required
  • Show an error message if the file selected for data import does not have any data REW can read
  • Reset the file filter list before setting a new filter to prevent filters accumulating in the list of available filters
  • The currently selected input is shown in the title of the RTA window
  • Bug fix: If the previously selected input device was no longer available on startup (showing blank in the Soundcard preferences) high CPU usage would occur when attempting to capture audio
  • Bug fix: SPL meter decay rates were too fast
  • Bug fix: Signal generator saving to WAV file could have incorrect frequencies if the chosen sample rate differed from the current REW sample rate
  • Bug fix: Measurement sweep was 3 dB higher than selected if the View option "Full scale sine rms is 0 dBFS" was selected
  • Bug fix: On macOS REW would quit even if Cancel was selected on the unsaved measurement dialog
  • Bug fix: The height of captured graph images was wrong if the selected image width didn't match the default width
V5.19 beta 10 15th July 2018
  • 24-bit data is now supported where the JVM makes it available (currently macOS and probably Linux)
  • Added 176.4, 352.8 and 384 kHz to the sample rates allowed for ASIO
  • Allow generator to continue running if ASIO output selection is changed - audio will be interrupted briefly, however
  • Added a dBc axis option for the RTA (dB relative to carrier, mainly used to present data relative to the level of the fundamental tone in the signal)
  • Only stop the generator after SPL calibration if the generator was started by REW
  • Added a colour scheme for spectrograms and waterfalls based on Dave Green's cubehelix, see
  • The delay figure with acoustic timing reference now uses the Estimate IR Delay process (cross correlation with minimum phase response) for better results with measurements that do not have HF content (mids or woofers)
  • Added warning to check mic access is allowed in Windows Privacy settings if input is not accessible
  • Added an option to allow/disallow narrow filters below 200 Hz when matching to target
  • Added an option to use IEC263 25 dB/decade aspect ratio when capturing graph images
  • Changed graph image capture to render the graph directly at the chosen width rather than scaling from the current width
  • Added a Tone Burst option to the signal generator
  • The Nimbus look and feel places the file chooser focus on the directory selector instead of the file name field, added a workaround for that
  • Added options to normalise, apply window and export min phase version to the export impulse response as text dialog
  • Updated the impedance measurement setup images to make it clearer that outputs and inputs are from the same device
  • Expanded the RT60 graph help
  • Bug fix: Aborting measurement for exceeding SPL limit should not apply to impedance measurements
  • Bug fix: Acoustic timing ref would be one channel out if using Java drivers with a multi-channel output and the ref output wasn't left or right
  • Bug fix: Spectrogram top level could get set to an incorrect value when changing measurements
  • Bug fix: Starting phase for signal generator linear or log sweeps was not reset to zero for each new sweep (did not affect measurement sweeps)
  • Bug fix: The level of custom filtered pink noise was affected by the low and high cut filter frequencies even if the filters were disabled
V5.19 beta 9 2nd April 2018
  • Added input selectors to the Measure dialog
  • Added a soundcard preferences control to set the mapping from REW's output channels to hardware output channels and choose the label to use for them
  • Multichannel output is no longer limited to 8 channels, allowing use of interfaces with higher channel counts on OS X (and probably Linux). The channel mapping control allows any 8 of the available output channels to be selected for use during measurement.
  • Devices with multichannel input are now supported on OS X (and probably Linux)
  • Added two protection mechanisms for sweep measurements, abort if excessive input clipping detected or if an SPL limit is exceeded. Both are controlled on the Measure dialog.
  • Added two protection mechanisms for the signal generator, stop if excessive input clipping detected or if an input SPL limit is exceeded.
  • Added an option to stop stepped sine measurement if excessive input clipping occurs
  • Added sample rate and channel selections for the signal generator WAV file export
  • Altered TS parameters optimisation to improve fitting. Data above 10 kHz is now not used for fit.
  • Show input name in title of SPL Logger window
  • When saving RTA data as measurement can now create measurements from current values, peak values or both (previously measurements were created from current values only)
  • Updated to latest Java 8 runtime, 8u162
  • Added a 64-bit Windows build requiring a 64-bit JRE
  • Added equipment info to the welcome page
  • Bug fix: previous sample rate not restored on startup if it was set higher than 48k
  • Bug fix: RT60 and Clarity traces could be re-selected when changing measurement
  • Bug fix: Spectrogram did not automatically recalculate if the before peak span was changed
  • Bug fix: Harmonic distortion traces normalised to fundamental were shifted if measurement had an SPL offset applied
  • Bug fix: Incorrect cal data values if a cal file was in csv format
  • Bug fix: Update input name in SPL Meter title when input selection changes
  • Bug fix: Distortion noise floor was not lowered when using multiple sweeps to reflect the theoretical improvement obtained (3 dB for each doubling of number of sweeps)
  • Bug fix: ASIO input could time out after changing ASIO output
V5.19 beta 8 14th January 2018
  • Reduced waterfall controls width to help formatting on low resolution screens
  • Added a View preference to show or hide the toolbar, hiding it makes more space on low resolution screens
  • Added a welcome message on startup with pointers to initial steps
  • RTA graph images captured with distortion panel showing also include the RMS level panel
  • Added 50 Hz as a 1/3 octave step for RT60 and Filtered IR
  • Added new controls for the filter frequency on the Filtered IR graph, with selection boxes to enable and next and previous buttons
  • Added support for 32-bit and 64-bit float PCM data when importing impulse, audio and sweep files
  • Added 352.8k and 384k sample rate options for filter IR export and append sample rate to default filename
  • If a WAV file being imported has two channels label them left and right rather than 1 and 2
  • Allow 192k sample rate with Java drivers on Linux
  • Bug fix: Predicted phase did not update when changing impulse t=0 offset
  • Bug fix: Import audio files did not work for mono WAV files
  • Bug fix: When an FDW was being applied phase response was incorrect if win ref time was not 0
  • Bug fix: When using a USB mic and ASIO4All there could be multiple requests for the mic cal file on startup if the cal file did not have a sensitivity figure
  • Bug fix: Exporting an impulse response that had only a short non-zero portion could result in a file that was all zero valued
  • Bug fix: Import sweep recordings could give incorrect results if the current REW soundcard sample rate was less than the WAV sample rate
  • Bug fix: Don't disable the output channel selector when output selection is not available
V5.19 beta 7 1st October 2017
  • Added ability to import sweep recordings and generate measurements from them
  • Added sweep level, timing ref level and sample rate selection when saving measurement sweep to WAV file
  • Added sweep settings information into measurement sweep files saved as WAV
  • Added option to capture spectrum data when making stepped sine measurements, the data can be viewed on waterfall and spectrogram plots
  • Use FFT bin frequencies in stepped sine measurement
  • Added 88.2k and 96k sample rates when using Java drivers. Make sure the input and output devices are configured in the OS to operate at the rate selected in REW, otherwise the OS will resample between the selected rate and the rate at which the input or output device is actually running.
  • Added a menu entry to import audio data files for analysis
  • Adjusted frequency-dependent windowing filter characteristics to improve wavelet spectrogram resolution
  • Added linear amplitude scale settings for spectrograms (percent of peak or percent of full scale) and a percent full scale log setting
  • Increased time axis resolution of spectrogram plots
  • Revised the spectrogram time span controls to have separate controls for the spans before and after the IR peak
  • Added a frequency axis selector to spectrogram to allow frequency to be on the X or Y axis
  • Added a Fill spectrogram floor control, when selected REW uses the bottom of the spectrogram colour scheme to fill areas that have levels below the floor of the graph
  • Added peak energy time as a separate trace on the spectrogram graph with time values in the graph legend
  • Added window type selector in spectrogram controls and, for imported audio data, in waterfall controls
  • The Y axis zoom out button on the spectrogram graph automatically limits to the full span of the spectrogram
  • Added option to use colour bands in spectrogram
  • Allow up to 501 slices in the waterfall - note that using more slices will increase memory use and the time taken to generate waterfall plots
  • Added a spectrogram-style colour scheme option to the waterfall plot for graduated colours
  • Made the cursor frequency line drawn over the surface of the waterfall more visible
  • Updated the waterfall help for CSD mode to warn that window width should be greater than time range
  • When using ASIO automatically reload the ASIO driver after the sample rate is changed
  • Added A and C weighted input level figures on the RTA
  • Added FBQ1000 as new name for DSP1124P
  • Allow up to 35 m room dimensions for room simulator and modal analysis
  • Additional input level check during SPL calibration to try and prevent incorrect calibration results
  • Trace arithmetic treats inputs as incoherent if they do not both have phase data
  • Reintroduced file overwrite check on OS X as OS no longer performs it
  • Revised trace colour defaults
  • Added a "separate traces" button for the All SPL graph
  • Added units labels to the graph limits dialog
  • No longer show measurement notes in tooltip for overlay graph legend selectors (gets in the way)
  • Moved Measure menu entry into the Tools menu
  • Added an Import sub-menu in the File menu
  • Made the graph cursor easier to see, especially on high resolution screens
  • State of measurement panel expand/collapse button is remembered for next startup; default for screens of 1200 pixels or less is collapsed
  • Default for showing graph scroll bars on screens of 1200 pixels or less is not to show them
  • Bug fix: 5.19 beta versions 4 to 6 were not compatible with Java 7 (used a Java 8 method)
  • Bug fix: Spectrogram contour interval was not remembered for next startup
  • Bug fix: Soundcard cal could fail to complete if measurement sweep had been set to a length above 256k
  • Bug fix: Traces with colours that changed along the trace were not rendered correctly on retina macs
V5.19 beta 6 24th June 2017
  • Play a minimum level sine wave before the sweep starts to help with signal lock for digital connections e.g. HDMI
  • Capture the noise floor before sweep and stepped sine measurements
  • Added option to mask distortion harmonics that are below the noise floor (on by default)
  • Show harmonics used in THD calculation in trace name
  • When saving filter coefficients to file for Generic equaliser only include enabled filters
  • Faster operation of the right click menu items in the overlay legend panels (trace selections)
  • Improved visibility of data panels and some other elements when using dark colour scheme
  • Bug fix: some component fonts were the wrong size
  • Bug fix: export distortion data dialog would not appear for measurements made with earlier versions of REW
  • Bug fix: Clarity values were not automatically calculated when viewing measurements with RT60 data generated before clarity calculation was added
V5.19 beta 5 21st May 2017
  • Added Outlaw Audio Model 976 equaliser setting
  • Added a stepped sine distortion measurement capability to the RTA
  • Added configurable distortion high pass and low pass filters to the RTA controls to exclude content outside the chosen frequency span
  • Highest distortion harmonic for sweep measurements changed to 9th, same as RTA
  • Added a control for the highest harmonic that will be used when calculating THD
  • Added buttons in the All SPL controls to make minimum phase and excess phase versions of a measurement
  • Added a button in the All SPL controls to make a copy of a measurement's response
  • Added buttons in the All SPL controls to time align or vector average all currently selected measurements
  • Added estimated start time of impulse response to the Info panel
  • When using acoustic timing reference take the delay figure from the start of the response instead of the peak if the peak is more than 1 ms later
  • Added a view preference to use thicker traces for averages in overlay graphs (on by default)
  • RTA uses the sig gen frequency as the fundamental if it is playing a sine wave when distortion analysis has been selected
  • Added an entry in the Info panel to track the cumulative time offsets made to the IR since it was measured
  • Added another spectrogram colour scheme, 'Heat'
  • Limit the trace colour selections in the View preferences to 30
  • Added more frequency resolution steps for the wavelet spectrogram
  • Added workaround for GodMode crash in JVM on Windows (useSystemExtensionHiding set to false)
  • Changed to Nimbus Look and Feel on Windows to work around JVM crash with Windows 10 Creators update when using system look and feel
  • Changed to Nimbus Look and Feel on Linux
  • Trace arithmetic on measurements which do not both have compatible impulse responses are carried out using whatever smoothing is already applied to the measurements
  • Bug fix: RT60 data panel showed results outside the range of the measurement
  • Bug fix: On loading a measurement an octave band filter could be left applied
  • Bug fix: Trace arithmetic division on measurements without impulse responses could fail
V5.19 beta 4 27th March 2017
  • Added a control in the View preferences for the maximum number of measurements
  • Show a scroll bar to the legend panel below the graph if there are more than 6 rows to display
  • Added a scroll bar to the left of the measurement list if the number of measurements is too large for their names to remain visible
  • Added Centre Time (TS) to RT60 plots
  • Added data panel to RT60 graph showing RT60, C50, C80, D50 and TS values
  • Changed C50, C80, D50 calculation method to use time windowing before filtering
  • Made small improvements to IR start detection for RT60 calculations
  • Added a dialog to configure settings and preview output when exporting measurement as text
  • Added a dialog to configure settings and preview output when exporting RT60 results as text
  • Added a dialog to preview output when exporting impulse response as text
  • Added delimiter and number format selections to distortion data export settings dialog
  • Changed order of info in soundcard cal measurement note so items of most interest appear at end
  • Added a measurement counter that appears in the Help -> About REW dialog
  • Removed question about applying inverse C weighting compensation when importing frequency responses
  • Disabled multiple sweeps selection when using a USB mic
  • Allow THD+N display on RTA even if fundamental frequency is too high to capture any harmonics
  • Removed the harmonic distortion dB SPL readout option when the distortion plot is normalised
  • Bug fix: UMM-6 SPL levels varied as input volume was adjusted on Windows 10
V5.19 beta 3 24th February 2017
  • Added graphs (including overlay) for clarity and definition parameters C50, C80 and D50
  • Set window ref time for the result IR of a trace arithmetic operation to the time of the peak
  • Keep 1dp resolution on window reference time spinner
  • Added code to cope with AudioSystem returning wrong line type
  • Bug fix: filter impulse response export could fail to write file if impulse response was short
  • Bug fix: REW could fail to start if the waterfall time range was out of limits
  • Bug fix: Decay rise time changes propagated to other measurements when viewed
  • Bug fix: Export IR as wav could fail if IR window was applied
  • Bug fix: Filtered IR graph did not update when reverse filtering or zero phase filtering controls were changed
V5.19 beta 2 31st January 2017
  • Added a button to reload the ASIO driver after making changes in the ASIO control panel
  • Added a workaround for Windows Java bug preventing proper display of Cyrillic characters in Audio device names
V5.19 beta 1 28th January 2017
  • Added a distortion overlay graph
  • Allow up to +/-999 dB data offsets
  • Use Arial Unicode MS under Windows when language is not English to try and improve support for Cyrillic characters
  • Set tool tip dismissal time to 5 seconds (from 8)
  • Changed default for RT60 to be one-third octave
  • Changed default for Decay slices to be filled
  • Changed default equaliser on first installation to Generic
V5.17 beta 15 23rd December 2016
  • Added a timing reference selector on the measurement dialog
  • Append -MP to the filename of exported minimum phase impulse responses
  • Ensure peak in an exported impulse response is at 1 second if the export has only one channel
  • Added a distance units selector to the View preferences
  • Changed default replay buffer for OS X to 16k and generated a new key to reset it to 16k for existing installations
  • Modified combo box UI so that the selection list is wide enough for all items in the list rather than truncating them at the box width
  • Bug fix: Length formatter didn't cope with negative distances when using feet and inches
  • Bug fix: Fractional sample shifts in the IR t=0 position did not update the window reference timing correctly
V5.17 beta 14 4th December 2016
  • Added THD and THD+N figures for the 20 Hz to 20 kHz span to the RTA distortion panel
  • Modified xml format of rePhase filter files to included enabled status, use constant Q and improve frequency resolution
V5.17 beta 13 3rd December 2016
  • Added command to export filter settings as text to filter tasks pane
  • Changed tool tip position for the graph trace selectors to move them right so they do not obscure the selector check box
  • Added a secondary ASIO output selector to the signal generator
  • Changed filter export to use decimal point as delimiter and remove grouping regardless of locale
  • Added options to save and load rePhase filter settings to and from an XML file
  • Bug fix: Target match optimiser could fail in some circumstances
  • Bug fix: Cal file loader could fail without an error message if an attempt was made to load a binary file
V5.17 beta 12 2nd November 2016
  • Added a rePhase equaliser setting, 17 constant Q parametric filters
  • Bug fix: White PN ignored LF Limit when using Custom range
  • Bug fix: Measurement name could end up with multiple annotations, annotations are no longer shown in the name in the measurement panel, only in the graph legends
  • Bug fix: Measurements after the first would fail if the Levels panel was displayed
V5.17 beta 11 11th October 2016
  • Added multichannel output selection capability, works on OS X (may work on Linux also) but not supported by Windows JRE
  • Added a View preference to show [FDW] in the measurement name if a frequency dependent window has been applied, preference is enabled by default
  • Disabled soundcard calibration when using a USB microphone (it is not applicable)
  • Set lower limit for capture monitor level meters to -60 dBFS (was -50)
  • Removed the inter-channel meters from the soundcard preferences and capture monitor
  • Updated bundled JRE to 8u102
  • Bug fix: valid start freq for measurement was not set correctly when loading a measurement that was smoothed
V5.17 beta 10 12th September 2016
  • Added input inter-channel relative gain and phase figures to the VU meters panel, active when signal generator is playing a sine wave
V5.17 beta 9 10th September 2016
  • Added sample rate to excitation description for impedance measurements
  • Bug fix: Fixed scaling error on merge B to A when measurements had different SPL calibration offsets
  • Bug fix: Impedance measurements can sometimes be affected by an inter-channel timing difference, possibly related to running the card at a different rate to the REW rate. If a timing difference of 1 sample or less occurs REW compensates for it, if more than 1 sample a warning is shown.
V5.17 beta 8 10th August 2016
  • If a USB mic is selected without having a cal file with sensitivity data loaded the SPL calibration status is cleared
  • If SPL calibration is attempted with a USB mic selected that doesn't have sensitivity data ask for the mic cal file
  • Added an equaliser setting for the Rockford Fosgate 3Sixty.3
V5.17 beta 7 18th July 2016
  • Bug fix: Fundamental response for distortion calculation could be incorrect (beta 5 bug)
V5.17 beta 6 14th July 2016
  • Input High Pass filter selection on soundcard preferences was previously only applied for measurements, now applies to any use of the input data
  • If a frequency-dependent window is applied its effect is shown on the windowed IR trace, included in a windowed IR export and trace arithmetic will use the FDW impulse
  • Added a peak trace to spectrum plots
  • Added peak hold and peak decay controls to the RTA window
  • No longer clear SPL calibration status if input changes - temporary changes during startup may have been causing issues for some users
  • Bug fix: With ASIO drivers the timing ref output selector was shown when first opening the measurement dialog even when not using a timing reference
  • Bug fix: RTA and Spectrum traces were drawn 3 dB lower than they should be when the axis was set to dBFS and the View option for "Full scale sine rms is 0 dBFS" was selected
V5.17 beta 5 2nd July 2016
  • Modified RT60 calculation to cope with responses that have been truncated before they reach the noise floor
V5.17 beta 4 2nd July 2016
  • Modified RT60 calculation to better cope with responses that have a large initial decay
  • Added a secondary output selector to the measurement dialog when using ASIO drivers
  • Bug fix: Schroeder trace on Filtered IR graph was not updated when filtering settings changed
V5.17 beta 3 27th June 2016
  • In distortion controls the options to limit norm. to 30 dB below peak and to use harmonic frequency as ref are only enabled when plotting normalised to fundamental as otherwise they have no effect
  • Removed 10 Hz lower limit on white periodic noise
  • Added option to use 64-bit FFT processing on RTA when need to resolve below -160 dBFS, e.g. analysing 24-bit digital data paths
  • Adjusted dual tone f1 level to match the sig gen rms level setting (means clipping occurs if level is set higher than -9 dBFS for 1:1 signals or -6 dBFS for 4:1 signals)
  • Bug fix: RTA rms level and average count not shown in correct position (beta 1 bug)
  • Bug fix: Graph axis selector could disappear when trying to select from dropdown on OS X
V5.17 beta 2 1st June 2016
  • Bug fix: graph controls window was not displayed properly (beta 1 bug)
V5.17 beta 1 31st May 2016
  • Added delay info to measurement notes when using loopback or acoustic timing reference
  • Added buttons on the graph to quickly switch between two preset frequency spans that are defined in the View preferences
  • Increased precision of distance readout on zoom box
  • Bug fix: distortion data was not generated for first measurement after startup and was wrong for first measurement after changing sweep span