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1. Set the Use virtual grabber checkbox (see The Settings panel of the Video subsystem section). Before that, shut down Axxon PSIM.
   
2. Create the Video capture device object on the Hardware tab.
3. Set the Virtual or Virtual bench type of the video capture device, depending on the type of the file that you want to use for imitation of the video signal.
   
4. Click the Apply button.
5. Create the Camera child object for the Video capture device object.

6. Specify the storage for the video that you want to use for video signal imitation in the Basic settings tab of the selected Camera object.
   

   Info
   title Note
   We don't recommend using videos compressed by the Wavelet codec, as their use significantly increases the load on the server.

7. Click the Apply button.
   If Axxon PSIM doesn't find files for playback within one minute after clicking the Apply button, the file search is interrupted.
   

   Note
   title Attention!
   The selected folder mustn't contain the video recordings of the Axxon PSIM internal format and AVI files at the same time. We recommend using one video recording and specifying the folder containing only the recording or the path to the file. If you need to use several video recordings, select the recordings with similar codec and resolution. This will help helps to avoid delays in Axxon PSIM work when switching between the recordings.

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When playing back files, the system sends events to the Debug window indicating the playback status (see CAM Camera). There are also reactions for controlling video recordings' playback in a virtual video capture device using the scripts (see GRABBER Video capture device).