---
title: "Capture live data"
canonical: "https://help.vicon.com/space/Tracker40/14192657/Capture%20live%20data"
format: markdown
---
> ⚠️ **Important**   
> ⚠️ Before you start capture, be sure to check that the appropriate options are selected in the Capture panel (see [Capture properties)](https://vicon-help.atlassian.net/wiki/spaces/Tracker40/pages/14192625).


    **To capture live data:**


1. Ensure your system is connected and calibrated and that Tracker is not in Review mode.
2. Open the **Capture** panel (**View** menu > **Capture**).
3. In the **Capture Info** section, ensure the **Capture Folder** location is specified as desired.
4. In the **Capture Name** box, enter a name for the new capture. If you want a number to be automatically appended to the file name and incremented on each successive capture, ensure **Auto-increment Name** is selected.
5. Do one of the following:
  - If you don't want to select any further parameters, go to step 7; or
  - If your capture requires any further setup, for example, if you are using remote triggering, in the **Auto Capture** section, supply the necessary information:
    - **Start/Stop on Timecode**: To start and end capture data at a specified timecode, select the check box and enter the required timecode.
    - **Stop After Duration**: To end the capture automatically after a specified number of seconds, select this check box and enter the required number of seconds.
    - **Broadcast Capture**: To send a remote trigger over the network via UDP to control capture start and stop times, select this check box.
    - **Triggered Capture**: To receive a remote trigger to control capture start and stop times, select this check box. A trigger can originate from either a voltage signal connected to your Vicon system via a Vicon connectivity device (Vicon Lock) or over the network via UDP.
    If you are sending or receiving a signal via UDP, also specify the **Port** for the capture and from the **Address** list, select the required IP address.
    For information on the format of UDP broadcast and trigger notifications, see [UDP capture broadcast/trigger](https://vicon-help.atlassian.net/wiki/spaces/Tracker40/pages/14192115).
  For more information on the capture settings, see
        [Capture properties](https://vicon-help.atlassian.net/wiki/spaces/Tracker40/pages/14192625)
        .
6. If you selected the **Start On Timecode** check box, start the timecode source from which the data capture is to be triggered; otherwise, go to Step 7.
7. Under the **Capture** section, select the check boxes next to each data source you want to capture. For more information, see [Capture properties](https://vicon-help.atlassian.net/wiki/spaces/Tracker40/pages/14192625).
  :check_mark: **Tip**: By default, Tracker 4 will capture raw camera data (.x2d) but all data available for review is captured within the review file (.mcp). If you do not select the check box next to **Capture Processed Data** (or **Capture Analog Data**), you may not see your data when opening it for review.
8. When you are ready to begin capturing, click **Start Capture**.
  The **Duration** number (mm:ss) increases as the capture proceeds.
  If you did not specify a number of seconds in the **Stop after Duration** box or if you decide to end the capture before the specified time, click **Stop Capture** when you have finished capturing.
  To abandon the capture without saving any data, click **Cancel**.

Each successful capture will be listed in the **Captures** section of the **Review **panel. If required, you can play back the captured data by double-clicking the capture name and then clicking the Play button at the bottom right of the **Workspace** view pane (see [Review captures](https://vicon-help.atlassian.net/wiki/spaces/Tracker40/pages/14190698)).

> ✅ **Tip**: To optimize your workflow and app layout for capture, consider using the **Capture** view settings (see [Customize the Tracker user interface](https://vicon-help.atlassian.net/wiki/spaces/Tracker40/pages/14189427)).