Knowledge Base
Documentation, guides, and resources for Noldus products.
Noldus Knowledge Base
Activity, Mobility, and Movement: How much is my animal moving around?
EthoVision XT file error Id 10025
Changing the exposure settings for Basler cameras
Reinstalling the Picolo U4 or U8 for EthoVision XT
Can I use a webcam with EthoVision?
Image from my camera is flickering
What are the supported video formats for FaceReader 9?
Making screen captures in Windows
Understanding Axis camera LEDs
Selecting an Axis IP camera in FaceReader 7, 8, or 9
What is the best way to share my Observer project with another user? Can I simply send the .vop (Observer Project) file?
An overview of which software version is supported by which operating system
Diagnosing the Load Project Failed (Id 10459) error in The Observer
My image is too dark using a Basler camera
Connecting an optogenetics laser to be controlled by EthoVision XT
An unexpected power down resulted in inconsistent analysis results/database in TrackLab
Selecting an Axis IP camera in FaceReader 6
Error E01 on the DanioVision Temperature Control Unit
EthoVision XT is unable to detect the Noldus I/O Box
The subject/tag names in TrackLab have technical numbers (MAC address). Can these be changed into human readable names?
What is the difference between RF4 and RF5 channel settings, on the Sewio tags?
After installation and starting TrackLab Viewer for the first time, it crashes.
What to do if the Tobii Eye Tracker is not found
DanioScope shows unrealistic low values of heart rate, like 15 BPM. Why ?
Setting up the CatWalk XT 10 walkway: calibration and detection settings
Do you need a dongle or license key to use TrackLab 2?
Configuring or reconfiguring new or existing tags
Some elements of the software appear too small or cropped when using Windows 10
What's new in EthoVision XT 17?
Installing EthoVision XT 17.5
CatWalk XT classified footprints are grayed out
The Observer XT Error Id 12524 – Event Log Read Failure
EthoVision XT file error Id 10034 Experiment cannot be repaired
I cannot find my project’s VOP file. I see a file that looks like it might be it, but I am unsure
FaceReader will not install and the resulting Log file says Access Denied 0x80070005
The Observer XT will not install and the resulting Log file says Access Denied 0x80070005
For social proximity analysis in TrackLab, is there a way to relate to which other subject the subject was in proximity?
Why did i loose TeamViewer access to the customer PC?
Do we charge customers for TrackLab updates and upgrades?
What is the purpose is of the tag settings ‘random deviation’, ‘periodical RX value’ and ‘RX duration’?
If i want to upgrade TrackLab, do i need to upgrade all three components (Viewer, Recorder and Server)?
Working temperature of an Axis M1145-L
My upgrade code is not recognized
Running out of free memory during acquisition in CatWalk XT
Creating a scaled floorplan with Inkscape for use in TrackLab
Moving or Relocating the PhenoTyper Home Cage
EthoVision XT crashes when viewing a GLP log
There are no data in my experiment. What happened ?
Installing EthoVision XT 18
Subject renaming in TrackLab
How to rename your subjects in TrackLab
Custom ErasmusLadder Experiment Protocol does not perform as programmed
Retrieve log files from the Sewio PC
Is my hardware license key PC specific, or can I move it from one PC to another as needed?
Is there a third party (freeware) program to convert my videos with?
Diagnosing computer hardware issues
Why didn't my upgrade code work?
I can't get my firewire camera working in EthoVision XT 15.0
Does The Observer XT support H265/Hevc codec?
Where can I find license info in MyNoldus?
MediaRecorder will not install and the resulting Log file says Access Denied 0x80070005
The Sewio anchors have stopped operating
Checking your license number
Missing data in EthoVision XT
EthoVision XT: Animal is not tracked in Hidden Zone
CatWalk XT 10.0, 10.5, or 10.6 does not open
Troubleshooting air continuing to blow after mouse crosses ladder
What are the supported video file formats for EthoVision XT?
Redo a trial in EthoVision XT
How many GigE cameras can I use on a laptop with EthoVision XT?
The TrackLab server is disconnected
TrackLab stopped calculating analysis results for Areas of Interest
What are the supported video formats for FaceReader 8?
My color Basler camera is monochrome in EthoVision XT
Basler camera is not detected by EthoVision
How do IR cameras work?
Tracking from multiple video files (Batch processing) in EthoVision XT
No Valid Hardware Key Detected After Installing Noldus Software
EthoVision will not install and the resulting Log file says Access Denied 0x80070005
UltraVox XT Error Message - Out of Memory
When and how do we update Sewio firmware and software?
There are no subjects visible in TrackLab, there seems to be no incoming data.
How does the anchor geometry affect tracking precision across the tracking site?
Playback control buttons are grayed out in The Observer XT
Picking the right sample rate in EthoVision XT
When charging the tags, the charging pad status LED starts flashing red after some time.
How do we handle TrackLab support involving Ubisense hardware?
Can a TrackLab GPS setup be installed by the customers themselves, with no on-site Noldus services?
Camera is not detected in CatWalk XT 10.6
Why are my trials ending at an exact time (e.g., 10 minutes) even though my Trial Control Settings are set for longer?
Accessing EthoVision XT remotely
Toolbars in EthoVision have disappeared
Error Messages on the DanioVision Temperature Control Unit
Where can i find technical information on UWB tracking hardware from Sewio?
The TrackLab customer reports a defective Sodaq-GPS tag with bulging battery.
Can I add or alter zones in my Arena Settings after data acquisition in EthoVision XT?
Can we measure altitude data (z-coordinate) with TrackLab?
Can i migrate data from TrackLab 1.x to TrackLab 2?
After recording for a long time, the TrackLab system becomes non-responsive with high memory and CPU load.
TrackLab crashes when opening or creating a new project
Why can't I start acquisition in EthoVision XT?
How do software-based and hardware-based licenses compare?
EthoVision XT crashes the moment the acquisition is started on a system that also has 3DHistech's CaseViewer installed
Connecting a Basler camera
Windows 10 power settings for EthoVision XT
Reinstalling the Picolo Alert drivers for EthoVision
How can I use video files in CatWalk XT?
EthoVision XT Settings are Locked, Unable to Modify
The Observer will not install and the installation log file says Access Denied - 0x80070005
There are no rectangles around the paw prints in CatWalk XT
Paw prints look incomplete in the Interactive Footprint Measurements screen in CatWalk XT
Paw prints are not recognized by the Automatic Footprint Classification Module in CatWalk XT
I made a backup file but I cannot see the VPB file extension on the end in File Explorer.
EthoVision XT trial duration does not correspond with system time (Id 12015)
EthoVision XT error ID 14005 Chart creation failed
EthoVision XT Resizer error (ID 8359)
Randomizing Events using EthoVision XT Trial Control
Configuring the Epiphan Broadcaster in FaceReader
Can I share my project with another user that has a different version of The Observer XT?
Can you use different types of Sewio tags in the same TrackLab setup?
Which UWB tag sleep mode settings do we recommend?
My CatWalk XT experiment will not open as it reports that it was made with a previous (or newer) version of the software, but the same version was used.
How accurate is location measurement for TrackLab with UWB (Sewio) tracking?
Can i use other Noldus applications on the TrackLab PC?
How often does the TrackLab-Sodaq GPS tag need to be charged?
Tags are shown at the wrong location in the tracking area, align at straight lines or not visible at all
Export of raw multi-sensor data (e.g. accelerometer, gyroscope, magnetometer, barometer) with TrackLab
The time stamps from the Sewio REST API export are not from the correct time zone.
Can a TrackLab 1 customer install a copy at home?
A TrackLab 1 customer reports that their license has expired and TrackLab stopped working.
TrackLab Viewer crashes on application startup (up to version 2.9)
Can i migrate data from TrackLab 2.x to a newer version?
Can i use TrackLab 2 on the same computer as TrackLab 1?
Customer is interested in tracking in TrackLab but also the upcoming machine learning behaviors. If they buy UWB hardware now, will it be future-proof?
TrackLab Remote Support & TeamViewer Usage Guidelines
How can i remove a tracking site that i do not use anymore?
Can my customer use their own PC brand/model to run TrackLab?
TrackLab shows "Database error, contact Noldus support"
Pellet Dispenser indicator light and error troubleshooting
When using the Baby model of FaceReader 9 the automatic analysis did not detect any negative valences across the whole dataset.
Color-marking animals for EthoVision
Z-axis compensation not in effect in Sewio (RTLS Studio), actual height values are generated
RTLS Studio not storing location and/or sensor data
Correcting the Basler Drivers
Check network settings for a Basler camera
How to re-name a computer with a Viso setup
Multiple error messages in The Observer XT when working from internal harddisk while no errors when working with fast external harddisk
Play a tone as a stimulus from the EthoVision XT trial control
Improving Nose-Tail tracking in EthoVision XT
DanioScope shows unrealistic high values of heart rate, like 2x the actual heart rate. Why ?
Moving or Relocating the CatWalk XT Walkway
How can I play back and hear ultrasound outside UltraVox XT ?
How do I upgrade my license?
Problems with the toolbar in EthoVision XT
Re-use of subject names in TrackLab
UltraVox microphones are not recognized after restarting the computer
Can I get certain dependent measures (e.g., "distance moved") by zone in EthoVision XT?
No vocalizations are seen in the UltraVox XT spectrogram
Why is the sum/total of the cumulative time for all of my zones greater than the trial time?
TrackLab subsampling vs sampling frequency
How to change the frequency on a Sennheiser wireless mic solution and automatic sync with wireless mic
What are the filter settings in Trackab?
How do power outages affect TrackLab operation?
My video image is missing/black/white/grayed out in certain places in EthoVision XT (e.g., Arena Settings, Detection Settings, Acquisition, Track Editor, Manual Scoring, Integrated Visualizat
Error contacting the license server in The Observer XT 16
Suddenly a problem with automatic Detection in Catwalk XT 10.6
Replacement of Sewio hardware
Using the MediaTypeRegistryCleaner
How can I remove recordings and data from the TrackLab database?
Our Basler camera used to give 25 frames per second but now only gives 3.75
What can I do in EthoVision XT without the hardware license key?
Is it possible to use The Observer XT on an Apple Mac?
Blue screen error message at 53% installation of Media Recorder 4.0 - hardlock.sys fails
My observation went on too long. How can I manually edit the stop time to lower it?
EthoVision XT does not recognize the dongle when working remotely
When should I use "Activity Analysis" in EthoVision XT?
My camera image is black
What exactly do the different colours in the heatmaps in EthoVision XT represent?
The Observer is not letting me create new projects, only new projects from templates
How can I transport an EthoVision XT experiment from one PC to another?
Resizer error when trying to open a video in EthoVision XT
Can I use experiments from old versions of EthoVision in a new version when I upgrade?
Noldus software download links
Upgrade CatWalk XT 10.7 from version 8 or 9
MediaRecorder 6.5.8847 Installation Instructions
What's new in The Observer XT 17?
TrackLab 2.15 Upgrade Notes
Upgrade to ErasmusLadder 2.0
What's new in FaceReader 10.0?
Why runs that seemed to meet the defined criteria in CatWalk XT were being marked as non‑compliant
How to setup Deep Learning in EthoVision XT 18?
Can EthoVision XT output a TTL signal for every video frame captured during a behavioral trial?
Will deactivating the license on the old computer delete experiments or projects saved on that machine
Is there a way to bulk‑rename exported data files by appending a custom label to each file name?
How long EthoVision XT would take to analyze a 1‑GB video file and whether the software could run in the background while other applications are used?
The Complete_Averages.csv export from FaceReader Online was misaligned
A specific user could open experiments normally but, when she selected File > Close, the experiment failed to close and became locked.
EthoVision XT 17 could no longer grab a frame from the video capture device after upgrade from EthoVision 16.
How to merge manual scoring data collected in EthoVision on different computers?
EthoVision XT displayed an “Insufficient License (Id 10073)” error when he attempted to open a previously saved experiment.
EthoVision XT v18 download from the MyNoldus link, after extracting the ZIP archive, received an error indicating that the folder was empty.
When attempting to upload and play an MP4 video in EthoVision XT on a Mac, the software only displayed a black screen
What are the supported cameras for MediaRecorder 5.0?
CatWalk shows unexpected error and experiment won't open
Cannot connect to Viso Services or Connection with Viso Services Lost
Viso rooms are showing offline
Viso Error 30028 when opening a location
Cannot retrieve information from Viso Services: Error 20021
Taking Viso Locations On/Offline
How to reboot a Viso Services/Recorder Computer