Cheetah 6.4.1

• Add support for microsecond accurate timing across all Acquisition devices, including FreeLynx, LabLynx, DigitalSX, and GigE cameras
• Add ability to support higher frame rates or resolutions for GigE cameras.
• Add ability to disable writing of all CSC channels via the -SetDiskWriteEnabled "CSC*" command
• Added improved MP4 encoding for video recording.
• Change to storing timestamps as UTC.
• Removed support for non-GigE version 2 cameras (Basler acA1600-60gc and Basler acA640-90gc)
• Add utility to automatically configure the DomainTime II service.

• Fix issue with event file headers being corrupted.
• Fix issue with FreeLynx DIO not being recorded in certain circumstances.
• Fix issue with video frames being dropped when changing the video settings while acquisition is active.
• Fix issue with the video files not respecting the maximum file interval if a recording had been made with unlimited file length previously in the same session.
• Clarify UI state when a FreeLynx/LabLynx device is recording to local storage.
• Digital IO events are now recorded to the events file if no other acquisition device is enabled.

• GigE camera frame rates lower than 30fps are not currently supported.
• When selecting the color thresholds for video tracking, the user must ensure that the specified colors are enabled in the tracking mode setup.
• Disabling the writing of CSC files via the -SetDiskWriteEnabled command (or UI) still creates a 16kb file for the CSC.

Cheetah v6.4.0

• Added support for GigE vision cameras.
• Added support for Measurement Computing E-DIO24.
• Added French, German and Norwegian translations of About box.

• The -SetAutoThresholdingSDMultiplier command now works with decimal values.
• Fixed some command error messages that were not being displayed.
• Fixed occasional freezing when enabling FreeLynx SD card recording.
• Fixed nuisance warning when creating AE with FreeLynx and LabLynx.
• Raw Data files now generate TTL values for SX ports 3/4 during playback.

Cheetah v6.3.2

• Now supporting DigitalLynxSX firmware v2.2.X

Cheetah v6.3.1

• Cube2 low battery warnings now logged and the warning message no longer pauses acquisition.
• If creating an HWSS fails, the HWSS configuration can now be reloaded without restarting Cheetah.
• Saved Cube2 configuration with enabled IMU will now load correctly.
• Cube2 Video Tracking LED enabled state is now saved to last configuration file.

Cheetah v6.3.0

• Added support controlling the ultrasonic microphone for the Cube2 wireless system.
• The following commands have been added or changed (see reference guide for details):
  • SetUltrasonicMicrophoneEnabled
  • GetUltrasonicMicrophoneEnabled

• Measurement Computing add-on DIO boards now generate events when the TTL value is changed.
• Measurement Computing add-on DIO boards now write messages to the log file.
• Unlicensed copies of Cheetah now show and log a valid host ID that can be sent to Neuralynx support.

Cheetah v6.2.0

• Added support controlling data transmission and SD card recording for the Cube2 wireless system.
• Cube2 Wireless system now shows a warning when the battery level reaches 20%
• Cube2 startup connection timeout increased to 90 seconds.
• The following commands have been added or changed (see reference guide for details):
  • SetDataTransmissionEnabled
  • GetDataTransmissionEnabled
  • SetSDCardWritingEnabled
  • GetSDCardWritingEnabled

• Cube2 can now reconnect if disconnected for more than 20 seconds.

Cheetah v6.1.0

• Added support for the Cube2 wireless system AD, IMU and Digital IO
• DigitalLynx SX Digital IO can now be treated as 2 16 bit ports or 4 8 bit ports.
• Added support for automatic thresholding of spike acquisition entities.
• The following commands have been added or changed (see reference guide for details):
  • CreateHardwareSubSystem (Cube2 option added)
  • SetCube2TrackingLED
  • GetBatteryRemaining
  • GetCoreTemperature
  • SetBatteryType
  • SetAutoThresholdingSDMultiplier
  • SetIMUEnabled
  • GetIMUEnabled
  • SetDigitalIOBitsPerPort
  • GetDigitalIOBitsPerPort
  • SendBinaryCommand

• An error is now generated if performing arithmetic operations on string variables in configuration files
• An error is now generated if dividing by 0 in configuration files using the /= operator

Cheetah v6.0.1

• DSP High and Low cut filters now unaffected by changing AE sub sampling
• DSP delay compensation calculation is now unaffected by changing AE sub sampling
• Video Tracking dropped records no longer shows large numbers of lost packets when receiving out of order frames.
• Warnings for DSP High Cut no longer generated when using a saved configuration that has a subsampling interleave greater than 1.
• Histogram FFT displays now update when the AE is sampled <= 16KHz

Cheetah v6.0.0

• Error reporting due to out of order AD records is now accurate
• System Status display can handle large quantities of messages being generated.
• The -break command functions properly regardless of whitespace.
• Modifying the Zoom Quadrant of Spike plots with the Right-click menu will now properly be displayed in the AE Display Property - Feature Plot Properties.
• The -SetDigitalIOPortString command now fails if the port direction is set for input.
• Messages added to the log file when errors are detected while processing startup configuration with invalid commands.
• TTL values with bit 15 set to 1 now display correct decimal value in the Event history.
• Events created from raw data file playback for bits 16-31 no longer have a hex string of 0x0000 in the event string.
• High frequency TTL events no longer cause data loss when the Events Dialog is shown.

• Default configuration files are now installed in Cheetah\Configuration of the Public Documents folder.
• Added support for Digital Lynx SX Combo Boards
• Digital Reference Selector (DRS) has been renamed to Hardware Reference Selectors (HRS).
• Unpaired input boards can now be located in any DigitalLynx SX slot.
• Digital Lynx SX firmware version 2.0.0 is now required.
• The following commands that were deprecated in previous versions have been removed:
  • RequestApplicationName
  • RequestCheetahVersionNumber
  • RequestCheetahBuildDate
  • GetCheetahBuildDate
  • SetDRSChannelReferences
  • RequestCheetahObjects
  • RequestCheetahTypes
  • RequestRingBufferSize
  • GetADBitVolts
  • SetSpikeChannelEnabled
  • GetSpikeChannelEnabled
  • RequestADRange
  • RequestSamplingFrequency
  • RequestFeature
  • SetDSPDelayCompensationEnabled
  • AddSpikeTTLOutputDevice
  • SetTTLResponse
  • AddDigitalIOBoard
  • SetDigitalIOInputEventsEnabled
  • SetDigitalIOTTLPulseDelay
  • SetDmaBuffers (for everything except RawDataFile HWSS)
  • SetDigitalIOBit (3 argument version)
  • DigitalIOTTLPulse (3 argument version)
• Removed support for Cheetah 32/64 analog systems.
• Removed support for Digital Lynx S systems.
• Removed support for 32 bit versions of Windows.
• Removed manual control of headstage power. It is now controlled by the DigitalLynx SX hardware, turning on with start of acquisition and off with stop.
• Changed "Animal Ground" reference name to "Subject Ground"
• Changed "Headstage #"/"HS#" reference naming to "Source #"/"SRC#" (e.g. "HS1R1" is now "SRC1R1")
• Subsampling interleave averaging added to AE processing.
• Maximum high cut DSP filter setting is now 0.25 * AE_SamplingRate and the high cut filter will be automatically enabled for AE_SamplingRate < HWSS_SamplingRate.
• AE Selection Dialog now displays associated AD channels.
• Improved error reporting in the System Status dialog.
• File creation and AE property changes have far fewer restrictions. Properties coupled to Input Range still generate a new file.
• Add hardware input calibration commands for setting offset and gain values.
• The default reference for all AE will now be SGND of the HRS that controls the AD associated with the AE.
• The -SetChannelNumber command will only change the reference of the target AD channels if not all of the channels passed to the command are using the same reference.
• HRS Setup now shows reference assignments for AD channels with no associated AE
• Events are generated when changing references between recording sessions instead of creating new files.

Cheetah v5.7.4

• Can now recover from a Direct3D lost device when time windows are visible.
• Fixed incorrect error messages related to Video Windows
• Fixed inability to display live video on some systems.
• Fixed freezing if a video capture device cannot be initialized.

Cheetah v5.7.3

• Can now use multiple capture devices for VT with the same device name if they have unique hardware IDs
• Fixed intermittent crashes caused when changing some acquisition entity properties
• Fixed multi-selection bug when switching between different AE types.

Cheetah 5.7.2

• Data files no longer lock up after ring buffer overrun errors occur.
• High frequency TTL events are now properly saved to NEV files.
• Fixed errors logged for each AE when shutting down software.

Cheetah 5.7.1

• Fixed communication problem with CUBE utility programs
• Pre-made configuration files now display properly in Notepad
• Y-axis labels in maximized time plot now adjust to appropriate values when using Zoom.

• Added back support for the 3 argument -SetClusterBoundary command in order to work with SpikeSort 3D
• NetCom data buffering is now on by default for SE, ST, and TT acquisition entities.
• Can now add multiple of the same AE to a Time or Spike window.
• Now works with Measurement Computing InstaCal v6.51
• Error message now shown when Digital Lynx SX is acquiring, but not receiving data
• DRS Properties window now adjustable

Cheetah 5.7.0

• Addition of feedback display window type containing FFT plot.
• Data lost during recording and file writing is now logged to a data processing errors file (NDE v1.0.0)
• Automatic recording shut off when hard drive is full.
• New data files per recording option.
• Max file length recording option.
• Raw data file playback resumes from current location when acquisition is toggled.
• Start timestamps specifier for raw data file playback.
• Raw data file playback speed adjustment.
• Plot trace color is now adjustable for for Time Plots.
• Background color is now adjustable for for Time Windows.
• Support for multiple NetCom client applications simultaneously.
• 64 bit version - currently supports Windows 7 and Video Tracking, DigitalLynx SX, Raw Data Playback and Cheetah64 systems
• Adjustable channel count for Lynx SX hardware.

• DRS Properties display is now read only.
• Spike Plot can now only individually enable and disable display of cells 0 - 6 and then 7+ as a group.
• Last configuration file is now written out every 5 minutes.
• System configuration file now written and used to notify user of unexpected shutdown.
• All configuration files processed are now stored in sub directory of data directory.
• Addition of hot keys for displaying System Status dialog (Ctrl+Shift+A), Event Display dialog (Ctrl+Shift+E),
• AE and Display Properties dialog (Ctrl+Shift+P) and Audio Output Control dialog (Ctrl+Shift+Y)
• Addition of the following commands: -GetDASBuildDate, -GetDASVersionNumber, -GetDASObjects, -GetDASState, -GetSampleFrequency (for HWSS)
• GetVoltageConversion.
• Updated version for all data file formats except log file.
• Unique recording session identifier.
• Data acquisition state retrieval.
• Recording Options dialog now contains raw data file output GUI
• Modification of error reporting and viewing in System Status dialog.
• Firmware version verification for Lynx SX systems.
• Increased log file output for property changes.
• Event history populated in Event dialog even when Event dialog is not displayed.
• Spike trace colors in time window will match trace color in spike window when using classification.
• Messages displayed in time window when window is frozen, recording is off or when raw data file playback is being performed.
• Can now copy selected messages from the System Status Dialog to the clipboard using Ctrl+C or right clicking on an item.
• Removed "Save Window Configuration to File" from menus of display windows.
• All acquisition entities now default to Headstage 01 Animal Ground as their reference.

• TTL values with bit 15 set to 1 now display correct decimal value in the Event history.
• Digital Lynx SX and ATLAS systems without a DRS no longer cause an exception when viewing reference properties.
• Events being created at 130 Hz no longer cause data loss when the Events Dialog is shown.
• Events created from raw data file playback for bits 16-31 no longer have a hex string of 0x0000 in the event string.
• Reordering of AD Records for Lynx SX hardware sub system.

Cheetah 5.6.3

• Data Translation Driver updated from 6.7.4.26 to 6.7.4.34 for Cheetah64 analog systems.

• Timestamps for events created from Digital IO input for Cheetah 32/64 HWSS are now correct.

Cheetah 5.6.0

• All DRS references are now set using a single Cheetah command, no need to manage globals and locals on each DRS.
• Added Named TTL Events. Allows you to associate custom event string with specific TTL bits transitioning from 0 (low) to 1 (high).
• Cheetah will now support a sample frequency of 32768 Hz for the Lynx SX hardware sub system.
• FIR Filters can now be used for Lynx SX DA output.
• Cheetah now supports the Digital Lynx SX 16 board system.

• Cheetah now requires that DRS boards only be at odd slot indices and that all input boards not paired with a DRS be placed after all paired input boards.
• Cheetah now logs an error when the VT is no longer receiving frames from the capture device during acquisition.
• Added New Commands:
• SetAcqEntReference
• GetAcqEntReference
• GetMinMaxInputRange
• GetDiskWriteEnabled
• SetNamedTTLEvent
• RemoveNamedTTLEvent
• GetRawDataFile
• GetDataDirectory
• Deprecated Commands that will be removed in a future release
• SetDRSLocalReferences (replaced by -SetAcqEntReference)
• SetDRSGlobalReferences (replaced by -SetAcqEntReference)
• SetDRSChannelReferences (replaced by -SetAcqEntReference)
• All Cheetah output files now contain a file version in the file header.
• The -AcqEntName field has been added to the event file header.
• The -FileType, -NumADChannels and -RecordSize fields have been added to the raw data file header.
• The -NLXBase_Class_Name field has been changed to -AcqEntName in the video file header.
• The -FileType, -CheetahRev, -HardwareSubSystemName, -HardwareSubSystemType, -SamplingFrequency, -ADMaxValue, -ADBitVolts and -NumADChannels fields have been added to the lost AD records file header.
• All AD and raw data timestamps are now synced to start and stop recording event timestamps for all hardware sub systems.
• The -PostEvent command now has an optional timestamp argument.
• Cluster and Feature library version information now written to log file.
• AD data files are now automatically created when the Acq Ent(CSC, Spike) is created.

• Fixed problems when using globals or making many DRS reference changes that caused Cheetah to report references incorrectly.
• Fixed erroneous error message saying VT is not in ADAcqEntContainer.
• Cheetah no longer generates error messages when clicking in the white space below the device selection list in the Audio Output Dialog.
• Cheetah now returns error code for NetCom OpenStream and CloseStream commands.
• Creation of a VT can now only happen when Cheetah is idle.
• VT capture device selection dialog no longer shows capture devices that have invalid hardware IDs.
• Attempting to create a plot window via NetCom now fails instead of locking Cheetah's UI which requires a restart of Cheetah to unlock.
• Tooltips are now shown when hovering over the icons in the time windows.
• Cheetah now searches the path of a configuration file that calls -ProcessConfigurationFile if no complete path is specified for the file to process.

Cheetah v5.7.4

• Can now recover from a Direct3D lost device when time windows are visible.
• Fixed incorrect error messages related to Video Windows
• Fixed inability to display live video on some systems.
• Fixed freezing if a video capture device cannot be initialized.

Cheetah v5.7.3

• Can now use multiple capture devices for VT with the same device name if they have unique hardware IDs
• Fixed intermittent crashes caused when changing some acquisition entity properties
• Fixed multi-selection bug when switching between different AE types.

Cheetah 5.7.2

• Data files no longer lock up after ring buffer overrun errors occur.
• High frequency TTL events are now properly saved to NEV files.
• Fixed errors logged for each AE when shutting down software.

Cheetah 5.7.1

• Fixed communication problem with CUBE utility programs
• Pre-made configuration files now display properly in Notepad
• Y-axis labels in maximized time plot now adjust to appropriate values when using Zoom.

• Added back support for the 3 argument -SetClusterBoundary command in order to work with SpikeSort 3D
• NetCom data buffering is now on by default for SE, ST, and TT acquisition entities.
• Can now add multiple of the same AE to a Time or Spike window.
• Now works with Measurement Computing InstaCal v6.51
• Error message now shown when Digital Lynx SX is acquiring, but not receiving data
• DRS Properties window now adjustable

Cheetah 5.7.0

• Addition of feedback display window type containing FFT plot.
• Data lost during recording and file writing is now logged to a data processing errors file (NDE v1.0.0)
• Automatic recording shut off when hard drive is full.
• New data files per recording option.
• Max file length recording option.
• Raw data file playback resumes from current location when acquisition is toggled.
• Start timestamps specifier for raw data file playback.
• Raw data file playback speed adjustment.
• Plot trace color is now adjustable for for Time Plots.
• Background color is now adjustable for for Time Windows.
• Support for multiple NetCom client applications simultaneously.
• 64 bit version - currently supports Windows 7 and Video Tracking, DigitalLynx SX, Raw Data Playback and Cheetah64 systems
• Adjustable channel count for Lynx SX hardware.

• DRS Properties display is now read only.
• Spike Plot can now only individually enable and disable display of cells 0 - 6 and then 7+ as a group.
• Last configuration file is now written out every 5 minutes.
• System configuration file now written and used to notify user of unexpected shutdown.
• All configuration files processed are now stored in sub directory of data directory.
• Addition of hot keys for displaying System Status dialog (Ctrl+Shift+A), Event Display dialog (Ctrl+Shift+E),
• AE and Display Properties dialog (Ctrl+Shift+P) and Audio Output Control dialog (Ctrl+Shift+Y)
• Addition of the following commands: -GetDASBuildDate, -GetDASVersionNumber, -GetDASObjects, -GetDASState, -GetSampleFrequency (for HWSS)
• GetVoltageConversion.
• Updated version for all data file formats except log file.
• Unique recording session identifier.
• Data acquisition state retrieval.
• Recording Options dialog now contains raw data file output GUI
• Modification of error reporting and viewing in System Status dialog.
• Firmware version verification for Lynx SX systems.
• Increased log file output for property changes.
• Event history populated in Event dialog even when Event dialog is not displayed.
• Spike trace colors in time window will match trace color in spike window when using classification.
• Messages displayed in time window when window is frozen, recording is off or when raw data file playback is being performed.
• Can now copy selected messages from the System Status Dialog to the clipboard using Ctrl+C or right clicking on an item.
• Removed "Save Window Configuration to File" from menus of display windows.
• All acquisition entities now default to Headstage 01 Animal Ground as their reference.

• TTL values with bit 15 set to 1 now display correct decimal value in the Event history.
• Digital Lynx SX and ATLAS systems without a DRS no longer cause an exception when viewing reference properties.
• Events being created at 130 Hz no longer cause data loss when the Events Dialog is shown.
• Events created from raw data file playback for bits 16-31 no longer have a hex string of 0x0000 in the event string.
• Reordering of AD Records for Lynx SX hardware sub system.

Cheetah 5.6.3

• Data Translation Driver updated from 6.7.4.26 to 6.7.4.34 for Cheetah64 analog systems.

• Timestamps for events created from Digital IO input for Cheetah 32/64 HWSS are now correct.

Cheetah 5.6.0

• All DRS references are now set using a single Cheetah command, no need to manage globals and locals on each DRS.
• Added Named TTL Events. Allows you to associate custom event string with specific TTL bits transitioning from 0 (low) to 1 (high).
• Cheetah will now support a sample frequency of 32768 Hz for the Lynx SX hardware sub system.
• FIR Filters can now be used for Lynx SX DA output.
• Cheetah now supports the Digital Lynx SX 16 board system.

• Cheetah now requires that DRS boards only be at odd slot indices and that all input boards not paired with a DRS be placed after all paired input boards.
• Cheetah now logs an error when the VT is no longer receiving frames from the capture device during acquisition.
• Added New Commands:
• SetAcqEntReference
• GetAcqEntReference
• GetMinMaxInputRange
• GetDiskWriteEnabled
• SetNamedTTLEvent
• RemoveNamedTTLEvent
• GetRawDataFile
• GetDataDirectory
• Deprecated Commands that will be removed in a future release
• SetDRSLocalReferences (replaced by -SetAcqEntReference)
• SetDRSGlobalReferences (replaced by -SetAcqEntReference)
• SetDRSChannelReferences (replaced by -SetAcqEntReference)
• All Cheetah output files now contain a file version in the file header.
• The -AcqEntName field has been added to the event file header.
• The -FileType, -NumADChannels and -RecordSize fields have been added to the raw data file header.
• The -NLXBase_Class_Name field has been changed to -AcqEntName in the video file header.
• The -FileType, -CheetahRev, -HardwareSubSystemName, -HardwareSubSystemType, -SamplingFrequency, -ADMaxValue, -ADBitVolts and -NumADChannels fields have been added to the lost AD records file header.
• All AD and raw data timestamps are now synced to start and stop recording event timestamps for all hardware sub systems.
• The -PostEvent command now has an optional timestamp argument.
• Cluster and Feature library version information now written to log file.
• AD data files are now automatically created when the Acq Ent(CSC, Spike) is created.

• Fixed problems when using globals or making many DRS reference changes that caused Cheetah to report references incorrectly.
• Fixed erroneous error message saying VT is not in ADAcqEntContainer.
• Cheetah no longer generates error messages when clicking in the white space below the device selection list in the Audio Output Dialog.
• Cheetah now returns error code for NetCom OpenStream and CloseStream commands.
• Creation of a VT can now only happen when Cheetah is idle.
• VT capture device selection dialog no longer shows capture devices that have invalid hardware IDs.
• Attempting to create a plot window via NetCom now fails instead of locking Cheetah's UI which requires a restart of Cheetah to unlock.
• Tooltips are now shown when hovering over the icons in the time windows.
• Cheetah now searches the path of a configuration file that calls -ProcessConfigurationFile if no complete path is specified for the file to process.