For stepped level measurements the SPL & Phase graph now shows a plot of the input level versus generator level and a linearity plot (previously it was blank)
If no IPV4 addresses are obtained for an 8c use any IPV6 address it returns
When importing measurement files if the data is very sparse (10 points or fewer) use linear interpolation on a log frequency axis, like a house curve import
Added an extra check for file imports to reduce chance of a csv file not using .csv as its extension being interpreted as using comma as delimiter
Added a View preference on macOS to select if using an AZERTY keyboard to work around a Java bug (JDK-8019498) causing incorrect shortcut key mappings
Bug fix: Made the beta 57 Java driver changes apply to macOS only, on Windows they could cause test signals to be truncated if the replay chain had a large buffering delay
Bug fix: If using a USB mic via an ASIO wrapper and the mic was disconnected and reconnected while REW was running REW would believe the mic input volume setting was zero and increase SPL readings accordingly
REW now saves a temporary copy of each measurement when it is made. On a normal shutdown those temporary copies are deleted, if REW did not shut down normally it will warn of the existence of the temporary files on the next startup and offer to load them.
Added a "Fit to data" button on the graph limits dialog and a corresponding entry in the Graph menu with a Ctrl+Alt+F shortcut. Fit to data sets the graph axes to show the full span of the data. On overlay graphs the fit covers the span of the selected measurements.
Added a button to insert the notes from the current measurement in the comments for graph image captures
Ensure controls panel remains visible if an additional graph is shown below the main graph
Added an "Infrasound" frequency band label for the region below 20 Hz
Bug fix: On macOS changing audio interface sample rate or format in Audio Midi Devices while REW was running would stop audio I/O from working, changes made to the Java driver handling for all platforms to fix that.
Added support for the Dutch&Dutch 8c eq features, including support for measuring using sweep signals generated by the speakers. 8c firmware V1.4.50 or later is required. Select the 8c as the default equaliser in REW's preferences to activate all 8c features.
Added support for the Elder Audio TimeZero2.6D/4.8D equalisers
Add 2 to 3 seconds of 16-bit dither at the beginning of measurement sweep files to ensure playback devices lock to the source before the timing signal starts
Show a message if the TS params calc is attempted without selecting a free air measurement
Initialise the room dimensions for new measurements from the room simulator dimensions
Bug fixes
TS simplified model params could be incorrect
An exception could occur when loading a stepped level measurement
Signal generator preview panel height was not scaled up for high DPI displays
Measurement sweep level could use signal generator level instead of output level in some circumstances
Added calculation of metrics for a range selected by holding the shift key then pressing and dragging with the left mouse button, implemented for SPL & Phase graph and Filter Adjust graph.
Show regression line and T60 value on the Filtered IR graph for a range selected by holding the shift key then pressing and dragging with the left mouse button
Generator
Minimum signal level for the signal generator reduced to -180 dBFS
Allow harmonics down to -180 dB on tone generator
RTA
Compensate for cal file corrections when estimating frequency of fundamental for RTA harmonic distortion
Added an option in the RTA's Distortion Settings to manually specify the fundamental level for harmonic distortion calculations
Display
Changed the graph zoom button icons
Other changes
Show a warning if one of the devices specified in the FlexASIO config file is not present when using FlexASIO
Allow the dBr axis setting to behave like dBc for saved RTA/Spectrum measurements
Bug fixes
Trace legend value for spectrum or RTA data that used bars showed interpolated values
RMS levels in the notes of saved RTA measurements with Adjust RTA Levels selected were increased by the level adjustment
Dual added mass ZM* and Bl traces were N/A when using linear spaced impedance measurements
Changing the Use thick traces View preference did not update graphs until restart
Changed capacitor component model fit to use data from 100 Hz to avoid issues with measurement errors at low frequencies
Increased precision of impedance calibration file entries to improve results at very high impedances, but behaviour will depend on interface capability
Plot component model response over the full frequency span rather than starting at the component fit start frequency
Added a Coherent averaging option for the RTA harmonic distortion measurement, non-harmonic content is heavily suppressed
Improved the initialisation of the RTA exponential averaging to speed up its initial convergence
Added a 9-term minimum side lobe cosine sum window to the RTA, side lobes 235 dB down
Added the averages display to RTA graph captures
Cleaned up multitone sequence noise floors by using 64-bit FFTs to generate them
Show up to 2 decimal places for signal generator frequency if required
Added a slider next to the Separate traces button to control the amount of separation, slider is only shown when the button is selected
Bug fix: Saving multitone sequences to file should specify repetitions rather than duration
Bug fix: Saving FFT-locked sine sequences to file should specify repetitions rather than duration
Added a "Component model" button to the Impedance & phase graph controls to derive equivalent circuit values for measurements of inductors and capacitors
On SPL & Phase/Impedance & Phase only show the right hand phase axis if a phase trace is selected
When importing impulse response data from WAV files added an option to import all channels
Bug fix: Changing I/O selections with the level meters panel displayed could cause an exception
Bug fix: Text on captured images was poorly rendered on macOS
