Noldus Knowledge Base

Check out detailed explanations on how to make optimal use of your Noldus installation. You can filter on the product you’re using. Looking for quick answers to common support questions? Check out our FAQs

Knowledge Base articles - All products


Play a tone as a stimulus from the EthoVision XT trial control

You can use a TTL device or an External Command action in the EthoVision XT trial control to play a tone or sound at a particular point in the trial.

Related to EthoVision XT

Improving Nose-Tail tracking in EthoVision XT

When settings are optimal, there should be few if any swaps of the nose and tail points. If you are seeing a lot of swap, the adjustments listed here should help.

Related to EthoVision XT

DanioScope shows unrealistic high values of heart rate, like 2x the actual heart rate. Why ?

Try to reduce the Heart area by focusing on the area of true movement.

Related to DanioScope

Moving or Relocating the CatWalk XT Walkway

How best to prepare the CatWalk XT Walkway for relocation depends on the scale of the move – just down the hall to another room, or to another facility possibly far distances apart.

Related to CatWalk XT

Moving or Relocating the PhenoTyper Home Cage

How best to prepare the PhenoTyper home cage(s) for relocation depends on the scale of the move – just down the hall to another room, or to another facility possibly far distances apart.

Related to PhenoTyper

EthoVision XT crashes when viewing a GLP log

Add a registry key to prevent crashing.

Related to EthoVision XT

How can I play back and hear ultrasound outside UltraVox XT ?

Open the sound file in Audacity and adjust the pitch down to the audible range.

Related to UltraVox XT

There are no data in my experiment. What happened ?

The experiment may point to a folder that was moved or deleted.

Related to UltraVox XT

Installing EthoVision XT 18

EthoVision is too large to install from a single file. The download is provided as a zip file (compressed folder) which must be extracted to a folder before installation can proceed.

Related to EthoVision XT

How do I upgrade my license?

Noldus offers licenses as hardware license keys or as software activation codes. Upgrading either is easy.

Related to All Noldus Products