15-Jan-26 version 7.3.9511
- Impulse signal and stimulus created in Edit - Generate are given an IR measurement type
- Added advanced setting (#150) for measurement highpass filter cutoff frequency
- Edit - Amplify, Filter and Window also available in spectrum view without selection
- Added speech spectrum selection for STIPA. Fixed spectrum selection for STITEL
- Fix speech sectrum settings for STIPA and STITEL
- Fixed potential exception in ASIO driver
- Fixed potential exception when changing number of channels
- Fix microphone / VU meter update when device setup with different microphone count is loaded
- Fixed exception when closing the Measurement window
- Fixed exception that ocurred while filling channels tab
- Capture (more) out of memory errors
- Measurmeent highpass filter is now accessible for user in the Advanced settings
- Fixed mismatch between MRU parameter and displayed parameter
- Pre- and post deconvolution energy scaling based on a 1 kHz third octave FFT filter
- Normalize microphone response curve to 0 dB at 1 kHz
- Fixed doubleclick on project tree node - now displays IR view window (again)
- Fixed MTF graph (added legend and title)
- Fixed exception with Echo addition and removal
- Shape files are now culture invariant
- Echo calibration update
2-Dec-25 version 7.3.9467
1-Dec-25 version 7.3.9466
- Catch exception in ASIO driver
- Added check for microphone response correction file availability
28-Nov-25 version 7.3.9463
- Pre-averaging disabled for STIPA measurements
- Loopback option disabled for Signal measurements
- Fixed race condition that caused an exception in Zircon processing
- RTA graph autoscaling unchecked when min or max y-axis value is changed
24-Nov-25 version 7.3.9459
- Fixed sfbu setting
- Limited number of displayed decimals in Shaping window
23-Nov-25 version 7.3.9458
- Echo calibration
- Added selftest option in Echo calibration
- Added button to load/save shape files in SFD
- Modified allowed sequence lengths for the Echo V2
- New STIPA and speech/voice signals
- Changed file format to flag Echo V2 playback
- Fixed STIPA MTF table
- Added advanced setting #149 to control soundfield buildup
- Added signal shaper in Debug menu
- Adedd speech spectrum setting for STITEL
- Fixed undo for .pcm files
- Fixed rectangular window over all samples
- Fixed Generate sweep lin/exp option
22-Oct-25 version 7.3.9426
- Echo calibration (incomplete)
8-Oct-25 version 7.3.9412
- Echo calibration (incomplete)
24-Sep-25 version 7.3.9398
17-Sep-25 version 7.3.9391
- JsonConvert defaults explicit initialization
- Extra logging
16-Sep-25 version 7.3.9390
- Echo authentication fix
- Echo2Dirac and Dirac2Echo stimulus conversions
15-Sep-25 version 7.3.9389
31-Aug-25 version 7.3.9374
29-Aug-25 version 7.3.9372
- Fixed RTA to correctly compensate for various FFT windows
- Added proper scaling for calibrated signals in spectrum view
- Implemented caching for resampled stimuli
23-Aug-25 version 7.3.9366
- Removed 48 kHz sample rate restriction on STIPA and Echo measurements
- Added option to copy values from a project table to the Noise values on the Speech tab of the File Properties dialog.
- Fixed HBK 2255 recording and RTA levels
18-Jul-25 version 7.3.9330
- Fixed authorization for file upload
- Uploaded files (to HBK 2755) are given a unique name
- Fixed problem that could prevent Dirac from exiting
17-Jul-25 version 7.3.9329
- Recovered from merge problem
16-Jul-25 version 7.3.9328
- Fixed playback in CoreAudio (WASAPI) that caused an exception in rare cases
14-Jul-25 version 7.3.9326
- Added password prompts for HBK 2255 and 2755
5-Jul-25 version 7.3.9317
- Update Vsound when temperature changes
3-Jul-25 version 7.3.9315
- Fixed aligner problems
- Added 'Lag compensation' field for aligner
2-Jul-25 version 7.3.9314
- Fixed non-Echo intermittent measurements
- Fixed aligner problem
23-Jun-25 version 7.3.9305
- Fixed sample rate correction for asynchronous measurements with new stimuli
- Fixed intermittent measurements with internal stimulus
- Fixed uncaught out of memory error
- Improved mapping of v7 to v6 stimuli when saving a measurement in v6 compatible format
15-May-25 version 7.3.9266
- Fixed measurement of source-receiver distance for (synchronous) intermittent signals
- Fixed a posteriori level calibration for intermittent measurements with a single calibrated channel
- Fixed calculation of DL-RI for EN 16272-5 due to typo in 2023 standard
24-Apr-25 version 7.3.9245
- Display RI and RIp values in red (table view) if below the minimum frequency
- Adrienne window sizes are no longer made equal over all microphones
21-Apr-25 version 7.3.9242
- Applied changes from ZIRCON
24-Feb-25 version 7.3.9186
- Fixed indexing error in reflection processing
- Default output gain is -30 dB in Zircon V2 measurement setup
22-Feb-25 version 7.3.9184
- Fixed Adrienne window positioning for reflection measurements
- Fixed rounding error in Project - Edit - Set source-receiver distance
- Added support for LAN-XI modules 3676 and 3677
20-Feb-25 version 7.3.9182
- Fixed silent crash on Mix-Paste
19-Feb-25 version 7.3.9181
- Fixed exception in Zircon group properties dialog
- Fixed DL-SI,G calculation
17-Feb-25 version 7.3.9179
15-Feb-25 version 7.3.9177
- Fixed 'Edit - Rotate' rounding error'
13-Feb-25 version 7.3.9175
- Fixed error handling in interval selection dialog
- Fixed lowest third-octave display in Zircon dialog
11-Feb-25 version 7.2.9173
- Enable Error and Exception messages to be displayed from a non-UI thread
- Prevent calculation of Zircon parameters while a Zircon group is being created
- Fixed problem with initial parameter after project load
10-Feb-25 version 7.2.9172
- Added DL-DI and DL-SI,G parameters
- Updated Zircon dialog for diffraction with and without added device
- Updated Zircon dialog for 'element' and 'post' transmission measurements
- DL-RI, DL-SI,G and DL-DI are now calculated from the 'checked' groups in a project
- Fixed rounding error in IR start marker drawing
- Fixed bug where project file manager could remove the wrong files
- Limit the length of the DiracTrace.log file
- Removed unnecessary graph legend entries for group level parameters
- Help file updates
21-Jan-25 version 7.2.9152
- Ambisonics update - in Adv.Settings: enable Ambisonics (#147) and set Default .wav format to 4 (#3)
8-Jan-25 version 7.2.9139
- Integrated diffraction processing for MA25 array
26-Dec-24 version 7.2.9126
- Ambisonics - virtual microphone
21-Dec-24 version 7.2.9121
- Fixed problem where Dirac would seem to hang on an empty project window
- Bring background IR view to front when selected from the project window
- Fixed source-receiver distance for intermittent measurements with loopback channel
- DL-RI is now calculated using the proper lowest frequency band based on NRD dimensions
- Changed default number of decimals for RI and SI to 2
5-Dec-24 version 7.2.9105
- Fixed Zircon Adrienne windows dialog
- STIPA signal is only available for Signal measurements
- Fixed tooltips on Measurement window Aligner tab
- Added note in help file about disabled OK button in Project - Save data dialog
28-Nov-24 version 7.2.9098
- Changed e-sweep range from 125 - 4 kHz to 125 Hz - 8 kHz
- Added support for 1793-5 'QuickScan' measurements (ASFiNAG)
- SIp and SI values are displayed in red if below the lowest valid frequency
- DL-RI and DL-SI ratios clipped at 0.99
- MRU parameter list in Project window is updated after the creation of a Zircon group
- Improved LAN-XI communication (longer timeouts)
- Improved parsing of recorded measurements from HBK 2255
- The 'None' input device now has a single virtual input channel by default
- Fixed problem on import with user-defined stimulus
- Improved scaling accuracy in PCM file write
- Improved handling of infinities and other invalid values
- Improved error handling while processing measurements
14-Oct-24 version 7.2.9053
- Fixed Adrienne window handling in Zircon calculations
26-Sep-24 version 7.1.9035
- Moved Cgeo and Cgain factors from RI to RIp
- RIp includes directivity if file is part of Zircon group
4-Sep-24 version 7.1.9013
- Fixed SI calculation
- Fixed exponential averaging for RIp, SIp, RI and SI
- Made a few changes to prevent exceptions
- Trying to delete the last and only group will no longer delete it
- Fixed problem with missing files in error reports
- Asynchronous setups can now have different recording and playback sample formats
- Fixed a problem that occurred when switching the RTA between different spectrum views
- Fixed IR view with tracewidth > 1
- Added extra and changed logging
19-Aug-24 version 7.1.8997
- Reverted to Wix 3.14 setup
8-Aug-24 version 7.1.8986
- Updated Zircon V2 processing
- Distance in IR view statusbar formatted conform SRDIST parameter
- Added Binaural STI (BSTI) through advanced option
- Fixed 'sticky' startup screen
- Upgrade to Wix 5 - new setup
26-Jun-24 version 7.1.8943
- Fixed startup problem
- Allow display of IR window if no file selected in Project window
- Fixed some tree handling bugs in the project window
24-Jun-24 version 7.1.8941
- Prevent error during Zircon parameter calculations
- Increased LanXI playback timeout
- Startup in project window with filename(s) on command line
- Do not exit Dirac if measurement window is closed with only a project window open
- Recovered from repository corruption
22-Jun-24 version 7.1.8939
- Integrated processing of reflection and insulation measurements (EN 1793 and EN 16272)
- Added project level node to tree in Project window
- Setup option to start Dirac with the project window rather than an IR window
- Improved Zircon substraction calculations resulting in higher Rsub values
- Added project level parameter DL-RI
- Renamed previous RI to RIp (partial RI). RI now incorporates Cgeo, Cdir and Cgain values
- Renamed previous SI to SIp (partial SI).
- Fixed (halved) length of non-Echo intermittent measurements
1-May-24 version 7.1.8887
- Updated array aligner feature to work with transmission measurements
- Added missing aligner error messages
- Fixed display of VU meters on some PCs
- Improved LAN-XI playback
- Cosmetic changes to RTA window
19-Apr-24 version 7.1.8875
- Updated default aligner values
- Added logging for invisible VU meter problem
18-Apr-24 version 7.1.8874
- Aligner: added directivity compensation
- Aligner removed nominal s-r distance setting
17-Apr-24 version 7.1.8873
- Added array aligner feature
- Fixed pasting of numbers in File Properties Speech tab
- Added possibility to directly copy numbers from the project table to the file properties speech tab
- Fixed problem where parameter MRU list was not always synchronized with graphed parameter
- Updated code signing certificates
15-Jan-24 version 7.1.8780
- Fixed problem where not all parameter values were calculated in the project window
- Copyright notice update
30-Dec-23 version 7.1.8764
- Fixed Options button for LanXI output device setup
- Fixed potential exception where different sound device types are mixed
22-Dec-23 version 7.1.8756
- Fixed problem where correct STIPA(MN) could be calculated in demo mode
20-Dec-23 version 7.1.8754
- Fixed graph y-axis autoscaling
- Improved feedback on project calculations cancellation
- Improved progress display in Project window
- Fixed STIPA(MN) MTF table
11-Dec-23 version 7.1.8745
- Fixed problem where RTA window only works once
- Added menu in RTA window
- Enabled RTA table copy, save and print
- Fixed RTA 'Min-max hold' option
- Clipboard copy using Ctrl-C enabled for RTA table
- Improved project window progress indicator and cancel button action
- Added 'More...' item at end of MRU parameter list in project window
- Fixed error in BulkTrim script
- Help file updates
21-Nov-23 version 7.1.8725
- Display the IR derived MTI in the Speech table rather than MTI derived from modulated noise
- Fixed issue with incorrect gain handling in VU meter
- Removed extra row in RTA table
- Fixed validation of Y-axis min/max values in RTA properties dialog
- Fixed average time restore when FFT window size changes in RTA properties
- Added seperation before weighted value in RTA bargraph
- Fixed HBK 2255 calibrated values
- STIPA and ECHO stimuli are only available with a 48 kHz playback rate
- Help file updates for independent playback and recording sample rates
- Updated help file for STIPA measurements using modulated noise
- Updated help file for automatic resampling of measurements
9-Nov-23 version 7.0.8713
- Fix to prevent IPv6 address use for LAN-XI streaming
8-Nov-23 version 7.0.8712
- Independent recording and playback rates
3-Nov-23 version 7.0.8706
- LAN-XI support
- Sound device is no longer restarted at start of measurement
5-Oct-23 version 7.0.8678
- Added SNR-SI parameter for EN 1793 and EN 16272
- Improved description of upgrade procedure
5-Jun-23 version 7.0.8556
- Fixed handling of 65536 Hz rate in device setup window
31-May-23 version 7.0.8551
- Updated dev folder
- Fixed exception when switching to unavailable sound device
25-May-23 version 7.0.8545
- Improved RTA/Graph auto min-max Y values
- Removed STIPA from stimulus list when modulated noise option is off
- Enabled Voice button for internal STIPA stimulus
22-May-23 version 7.0.8542
- Fixed help file layout issues
- Fixed missing level calibration ID in measured files
- Set pre-average count to 1 for Stipa signal
- Disabled loopback and pre-average for Stipa signal
- Changed ELA parameters to use full (power-of-2) file length
- Fixed playback of Stipa signal to prevent signal break
- Skipped I/O delay compensation for signal measurements
- Fixed internal Echo signal scaling
- Fixed speech table selection for IR/Signal measurements
- Fixed saving of STIPA parameter setup options
- Removed empty Speech node from parameter tree
- Update measurement window when output is (de-)selected
17-May-23 version 7.0.8537
- Added 65536 Hz option to device setup sample rate selection
- Added advanced setting to set the number of loopback channels for the 'None' recording device
- Clarified 'Measuring sound intensity' help file topic
- Added exclude noise option for STIPA and STIPA(MN)
- Fixed STIPA(MN)/MTI(MN) calculations for non-intermittent measurements
- Exclude ER and STITEL for signal measurements
- Removed empty ISO 3382-3 node from parameter tree
27-Apr-23 version 7.0.8517
- Updated speech parameter windows for direct/indirect method
- Added context sensitive help for modulated noise window
- Strict separation between IR and signal parameters based on file property
- Corrected levels for stipa and internal echo signals to match speech level
- Added stipa option to signal generator
- Fixed parameter naming: STIPA(IR)->STIPA and STIPA->STIPA(MN)
19-Apr-23 version 7.0.8509
- STIPA modulated noise with intermittent option, without helpfile
5-Apr-23 version 7.0.8495
- STIPA modulated noise - work in progress
- Renamed STIPA based on indirect measurements to STIPA(IR)
- Improved octave band filters in STI calculations
- Prevent exception when unloading a project
13-Feb-23 version 7.0.8444
- Fixed file format version when combining channels
- Fixed reading/writing system calibrations for different file format versions
- Improved stability and prevent exceptions in wireless setups
- Don't show RTA running time in continuous modes
- Prevent excetion on invalid RTA averaging time
- Fixed problem when switching RTA spectral resolution
- Fixed problem with high-DPI displays
- Show wait cursor when loading a measurement preset
- Removed Aether from wireless inputs
- Improved handling of non-existing wireless amplifier
- Prevent exception on on-existent measurement file
- Improved samplerate mismatch message
- Don't show sample rate mismatch warning when importing a signal
- Fixed INRA, LAeq, LCeq and LPAB
20-Dec-22 version 7.0.8389
19-Dec-22 version 7.0.8388
- IronPython update from 2.7 to 3.4
- Update ZeroConf, Newtonsoft.Json and SQLite libraries
16-Dec-22 version 7.0.8385
- Fixed trigger option
- Prevented potential exception when building overlay menu
16-Nov-22 version 7.0.8355
- Added Pos and Angle columns to Channels tab in Measurement window
- Mouse hover over row header in Channels tab displays device/channel name
- Device/channel name is part of Autoname
- Autoname configuration on Autoname tab in Setup/Options window
- Switched to new v1.43 build tools (VS2022)
8-Nov-22 version 7.0.8347
- Restored import button
- Fixed multi-channel import
- Help file update
- Removed SINAD parameter
- Added wireless Access Control
- Fixed delay finder for non-Echo stimuli
- Fixed reference in EN 1793 scripts
- Prevent exception on Undo
- Updates HBK Licensing
- Updated Startup and About windows
- Fixed RTA crashes when switching views, stopping/starting etc.
- Disable online level calibration for 2255
- Set 2255 AudioRecordingAnalysisQuality before streaming
- Removed temporary Sqrt(2) scaling for early 2255 firmware
18-Sep-22 version 7.0.8296
- Fixed offline calibration with unknown channel setup
- Improved 2755 timeout tolerance with poor WiFi
- Fixed active 2755 selection and commanding
14-Sep-22 version 7.0.8292
- Improved stability of 2755 connection
7-Sep-22 version 7.0.8285
- Increased 2255 identification delay to 9s
- Added RTA graph button
- Changed RTA graph/table button behaviour
- Add option to subtract reference from RTA spectrum
1-Sep-22 version 7.0.8279
- Fixed dropdown width in Sample Format dialog
- Added Adrienne_6ms preset to time windows
- Fixed IR view update when minimum S-R distance changes
- Prevent database exception on files with empty GUID
- Added delay between WebRequest attempts in check for version update
- Added missing DLL to setup
- Minor changes in UI strings
- Added Date/Time to DiracTrace
- Improved AddIP UI
- Improved socket timeout handling
- Default measurement setup PlayStimulus=true and Volume=-30dB
23-Aug-22 version 7.0.8270
- Added missing DLL to setup
- Added Project - RTA menu item
- Changed window caption to 'Project/Paramaters'
- Changed 'Graph/Statistics' to 'Project/Parameters'
- Removed INS andd DEL key shortcuts from Project window menu
- Changed param vs dist x-axis label to 'Source-Receiver distance'
17-Aug-22 version 7.0.8264
- Prevented a number of exception
- Intermittent cannot be used with dual-channel microphones
- Added missing DLL in setup
- AddIP for wireless players
- Import is disabled instead of invisible when automeasure is active
- Enable INS and DEL keys in microphone response file list
- Hide 2755 progress bar when not uploading
- Do not allow overlapping Identify actions on 2255
- Made room for longer device names on 2255
10-Aug-22 version 7.0.8257
- Default calibrator level changed to 94 dB
- Allow (Setup menu) level calibration for all available input channels
- Fixed exception on unused parameter database
- Improved DNS detection of HBK 2255 and 2755
- Removed speech filters in Edit - Filter
1-Aug-22 version 7.0.8248
28-Jul-22 version 7.0.8244
20-Jul-22 version 7.0.8236
- More accurate logarithmic x-axis range selection
- Addded horizontal line segments ('barline') to graph linestyle options
- Added optional weighted value bar in RTA
- Fixed frequency weighting calculation for INRA, LEQA, LEQC and LPAB
- RTA feature complete
14-Jul-22 version 7.0.8230
- Fixed incomplete setup causing exceptions
13-Jul-22 version 7.0.8229
- Removed ISO 3382-3 STI
- By default hide STI female, STITEL, RASTI and privacy distance
- Removed Huzty parameters
- Speech table adapts to visible speech parameters
- Fixed exception on certain signal files in File Properties dialog
- Added ISO 3382-3 rC parameter
- Disabled intermittent option for user-defined stimuli
- Added parameter database - work in progress
- RTA work in progress
29-Jun-22 version 7.0.8215
- Set 8th order IEC filters as default
- Cut esweep handling in MTF calculations
- Added IEC 60268-16:2020 male speech spectrum
- Added suppress noise option for User defined STI and MTI
- Added nominal qualification band to speech table
24-Jun-22 version 7.0.8210
- Numbered advanced settings
- Added intermittent indicator to File Properties dialog
- Added intermittent option to signal generator
- Fixed signal definition controls in signal generator dialog
- Added 'measurement type' = 'signal' to file made in signal generator
- Exponential averaging for Magnitude parameters
- Fixed problem with input gain getting lost in VU display
23-Jun-22 version 7.0.8209
- Leading zero for receiver number new filename
- Advanced setting to always append a sequence number to the filename
- Fix problem with dual channel mic and only one active channel
- Fix exception when changing displayed parameter
- Switch to graph mode when a parameter is selected in preview mode
- Fixed bandlimited pink mls stimulus
21-Jun-22 version 7.0.8207
- Intermittent stimuli
- More flexible frequency range selection in parameter properties window
- Echo stimulus only available when samplerate is 48 kHz
- Fixed Import
- Warn for samplerate mismatch on import
- Fixed spike at end of sweep (and other diturbances) due to fader
9-Jun-22 version 7.0.8195
- Moved 'Probe separation' option to channels tab
- Moved 'Minimum S-R distance' to parameter setup (SRDIST)
- Removed Process tab from measurement window
- Force VU meter A-weighting for Aether and 2255
- Adjusted channel colors on Channels tab
- Fixed exception for Probes in Channels tab
- Fixed VU level display after channel selection change
- Clearer indication of calibrated/uncalibrated VU meters
- Voice signal follows Balanced option under advanced settings
- Stimulus fade in/out is now controlled through the advanced settings
7-Jun-22 version 7.0.8193
- Changed device setup file extension from .cal to .dds
- Level- and System-calibrations are no longer dulicated in the measurement setup
- Default number of channels in level calibration is 0 instead of 2
- Fixed handling of partially level-calibrated multi-channel measurements
- Optional unweighted or A-weighted VU meters
3-Jun-22 version 7.0.8189
- Removed sample scaling when .wav files are saved without Dirac info
- VU meter options are stored in measurement setup instead of config file
- VU meter highest level is clip-level instead of 0 dBFS
- Improved measurement setup and device setup handling
- Fixed level calibration dialog for multi-channel devices
- Voice button is only displayed when internal Echo source is selected
- Added Stimulus tab to signal generator
4-May-22 version 7.0.8159
- Updated VVS signals
- No soundfield buildup for signal measurements without internal stimulus playback
- Added option to enter numerical output gain by clicking on value below slider
- Improved 2755 connection signalling
- Generic COM initialisation
- Uninitialise COM when no longer in use
- Reversed 2nd channel in all 2755 siganls
- Show [Setup]* in measurement window caption when setup has changed
- Added Channels tab
- Moved 'Mute' checkbox to Channels tab
- Moved (fixed) S-R distance to Channels tab
15-Mar-22 version 7.0.8109
- Added HASP driver v8.31 to setup package
- Fixed measurement preset loading
- Removed cut-esweep option from measurement window processing options tab
- Implement cut-esweep processing as part of RT and noise evaluation
- Added advanced option to enable/disable cut-esweep processing
7-Mar-22 version 7.0.8101
- HBK 2755 websocket support
- Improved connection to HBK 2255
- HBK 2255 FLAC streaming for RTA
- Stimulus spectrum correction in IRNTAIL parameter
- Updated 2755 VVS signal generator
- Corrupt XML files are automatically saved and recreated
16-Nov-21 version 7.0.7990
- Added support for HBK 2755
- A reference to the device setup is now stored in the measurement setup
21-Oct-21 version 7.0.7964
- Added extra tracing information
- Trace log included in error reports
- Improved communication with HBK 22x5
18-Oct-21 version 7.0.7961
- Number of 'large' VU meters is configurable via Advanced settings
- Added extra tracing information
- Added option to add a wireless device manually using an IP address
19-May-21 version 7.0.7809
- New implementation for compressor lookahead
3-May-21 version 7.0.7793
- Fixed lowpass filter initialisation
- Added fractional octave band filter
- Added softclipper in debug menu
- Added compressor in debug menu
27-Mar-21 version 7.0.7756
- Fixed signal playback exceptions
- Reduced depth of ASIO playback queue to speed up volume change and playback stop
- Added alternative sound device initialisation methods to support more devices
- Restore playback volume on unused devices when exiting device setup dialog
- Removed I/O delay compensation for signal measurements
- Fixed exception when adding new level calibration
- Fixed channel numbering in level calibration dialog
- If possible, deduce signal or noise values from manually entered noise or signal values respectively
- Updated startup screen images
- Lowered crest factor of pink MLS stimuli
- Renamed 'ISO 3382-3' stimulus to 'IM Pink MLS'
- Added optional scientific notation for parameter values in parameter setup dialog
- Show wait cursor when opening measurement window
- Activate project window after measurement with 'Save to project' option set
- Added Python scripts for Zircon V2 system to installation script
- Added Zircon V2 measurement setup to installtion script
- Added shortened Adrienne window to default time windows
11-Oct-20 version 7.0.7589
- Selected project preview item more clearly marked
- Tooltip on project preview items
- Seleced item in project tree follows selected preview item
- Preview item caption cut at window edge instead of word end
- Fixed Receiver numbering - now starts at Receiver number entered on position tab
- Fixed exception when no microphone response file was specified
- Prevent exception on ASIO control panel
- Fixed level calibration exceptions due to channel numbering confusion
- Fixed pre-avaraging