> For the complete documentation index, see [llms.txt](https://docs.senstream.com/senstream-researcher-ring-application-user-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.senstream.com/senstream-researcher-ring-application-user-guide/ios-mobile-app/record-a-live-session.md). # Record a Live Session ### Define a New Session #### Ensure a ring is connected At the top of the Record Session screen, look for a connected ring. If no ring is present follow the instructions for [Pairing a Ring](/senstream-researcher-ring-application-user-guide/ios-mobile-app/pairing-a-ring.md).

#### Select a session type Touch the current session type to select the combinations of PPG, ECG, EDA, Temperature, and associated sampling rates you seek to use in sessions. There are five combinations labeled A through E.

*** ### Optional Session Actions Optional actions to add to a session include adding a note which will be associated with the session data and a timer. **Notes**\ Add notes for your session for future reference.

**Timer**\ Enter the session’s length which will stop the session when time expires, or disable for a session to run indefinitely or until it is manually ended.

#### Start Synchronization To help sync the start of the session with other nearby recording devices, the user can turn on: * Visible signal using the iOS devices camera flash (Flash Torch) and/or screen (Flash Screen) * Audible signal using (Play Audio Alert) When you select a sync option on this screen it will play an example. The selection will remain persistent for all sessions until the user deselects it.

*** ### Participant Prep Before putting the ring on a participant and starting a session, it is recommended they wash hands, dry well, and check that hands are not too cold from outdoor activities. Cold hands can affect the quality of the electrodermal activity signal. *** ### **Live Sessions** #### Start session Tap “Start” to begin a session that will display live data.

#### Live data display The first time you start a live data recording session, the default display will show all the available graphs for both raw data and derived signals.

#### #### Supportive displays/controls Tap the Edit button at the top left and the Chart Settings screen will appear where sensor channels can be selected/unselected for real time graphing during a session.

Ring battery level indicator is displayed at the top left of the screen.

Session elapsed time appears at the top right of the screen.

Ring sensor mode appears at the top right indicating the active sensors.

Each graph sensor type is labeled along with the active ring ID number.

If your ring unexpectedly disconnects, an audible alert will play and a message will display in the app. At any time, use the “End Session” button to finish your session.

*** ### Event Markers During live sessions, the user is able to manually place time stamped markers into the dataset. To place a marker, press the "Mark Event" button at the bottom of the screen and note a gray bar appears in the charts to denote the marker. Note that charts on the same screen are at different visible scales so they move at different rates. Thus a single marker will appear at different timeline locations on different charts.