No longer used: REW Windows installer with JRE allowing multiple instances

No longer used: REW Windows installer with JRE allowing multiple instances V5.20 beta 7

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Changes in V5.19 beta 10:

  • 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 https://www.mrao.cam.ac.uk/~dag/CUBEHELIX/
  • 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 changes:
  • 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 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
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Changes in beta 8:
  • 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
As beta 7 with fix for minimum phase generation not working.
Quite a few changes in this beta version, I'll list them here and make further posts to explain the changes.
  • 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
Changes in beta 6:
  • 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
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