--- title: "Stream data using Open Sound Control" canonical: "https://help.vicon.com/space/Tracker41/14321163/Stream%20data%20using%20Open%20Sound%20Control" format: markdown --- Tracker enables you to stream data from Tracker over UDP using the Open Sound Control (OSC) format, so that you can access live data in your OSC server application. **To access the OSC data streaming options:** 1. On the **View menu**, ensure **Connections** is selected**.** 2. In the **Connections** panel, go to the **Output Settings** properties to find the **OSC** section. 3. At the top right of the **OSC** section, ensure the Advanced properties are displayed. The data available for output is a subset of the data available using the DSSDK. > ⚠️ **Important:** > ⚠️ To stream device data, you must give the device a name. > Macro (scroll-pagebreak) ## OSC stream properties You can view or change these OSC streaming settings: > Macro (scroll-tablelayout) | **Property** | **Description** | | --- | --- | | Enabled | Turns streaming on or off | | Address | Address used to create the outbound socket | | Port | Port number used to create the outbound socket | | Buffer Size | Size of the buffer to allocate to store a frame's worth of data | | Objects, Markers, Unlabeled Markers, Centroids, Devices | Turn on/off output for the specified data types | | Use Object Name | If a single subject is loaded, this option enables you turn on/off the subject name in the output message address (see [Packet contents](#PacketContents)). If multiple subjects are loaded, the subject name is always included as part of the message address. | ## > Macro (anchor) Packet contents Each packet consists of a bundle containing one or more messages. Each message has an address associated with it to identify its contents. The** /vicon/frame** message is always generated; other messages may or may not be present, depending on the output data types selected. > Macro (scroll-tablelayout) | **Full address** **(Base in bold)** | **Tracker property** | **DSSDK type** | **Data values** | **Description** | | --- | --- | --- | --- | --- | | **/vicon/frame** | NA | Output_GetFrameNumber Output_GetFrameRate Output_GetTimecode | long - Frame Number float - Frame Rate int32 - TimecodeHours int32 - Timecode Minutes int32 - Timecode Seconds int32 - Timecode Frames int32 - Timecode Subframes int32 - Timecode Field Flag int32 - Timecode Standard int32 - Timecode SubframesPerFrame int32 - Timecode UserBits | Always present in the bundle. Timecode values are only present if the application has timecode enabled. | | **/vicon/seg**/SUBJECT/SEG_NAME /vicon/seg/SEG_NAME | Enable Segments | Output_GetSegmentGlobalTranslation Output_GetSegmentGlobalRotationMatrix | float(3) - Translation float(9) - Rotation matrix | SUBJECT: Subject Name SEG_NAME: Name of the segment If the Subject Name property is cleared and a single subject is loaded, the SUBJECT portion of the address is omitted. In all other cases it is present. | | **/vicon/marker**/SUBJECT/MARKER_NAME /vicon/marker/MARKER_NAME | Enable Markers | Output_GetMarkerGlobalTranslation | float(3) - Translation | SUBJECT: Subject Name MARKER_NAME: Name of the marker If the Subject Name property is cleared and a single subject is loaded, the SUBJECT portion of the address is omitted. In all other cases it is present. | | **/vicon/unlabeled**/N | Enable Unlabeled Markers | Output_GetUnlabeledMarkerGlobalTranslation | float(3) - Translation | N: A number starting at 0 Unlabeled marker numbers are arbitrary so you can't assume that the same unlabeled marker will be given the same number frame-to-frame. | | **/vicon/2D**/CameraID | Enable Centroids | Output_GetCentroidPosition | int32 - Number of centroids For each centroid: float(2) - Position float - Radius | | | **/vicon/device**/NAME/OUTPUT/COMPONENT | Enable Devices | Output_GetDeviceOutputValue | int32 - Number of samples For each sample: float - Device output value | NAME: Device name OUTPUT: Device output name COMPONENT: Device output component name |