> 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). 

<div align="left"><figure><img src="/files/yGiHaMUWaC2RtZ7CkOGk" alt="" width="188"><figcaption></figcaption></figure></div>

#### 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.&#x20;

There are five combinations labeled A through E.

<div align="left"><figure><img src="/files/gLRvHeKpimhAnO3sxJHD" alt="" width="188"><figcaption></figcaption></figure></div>

***

### 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.

<div align="left"><figure><img src="/files/4cGHA5laZ8CFYeD5IWrL" alt="" width="188"><figcaption></figcaption></figure></div>

**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.

<div align="left"><figure><img src="/files/rpxq5DPldvZaKoHO7xTY" alt="" width="188"><figcaption></figcaption></figure></div>

#### 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.

<div align="left"><figure><img src="/files/d9QrLGhpdZSEsadhyynU" alt="" width="188"><figcaption></figcaption></figure> <figure><img src="/files/gGrWg1glfjBD7VUxMUsh" alt="" width="188"><figcaption></figcaption></figure></div>

***

### 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.

<div align="left"><figure><img src="/files/6qg4GwwPQj5GIBZspNKv" alt="" width="188"><figcaption></figcaption></figure></div>

#### 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.

<div align="left"><figure><img src="/files/tAgm5VaZe1ToLc01e5vx" alt="" width="188"><figcaption></figcaption></figure></div>

####

#### 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.

<div align="left"><figure><img src="/files/NxDRXpZFbkL9dgsjfy0D" alt="" width="188"><figcaption></figcaption></figure> <figure><img src="/files/Uza0bsAkDEVllpxdlMXp" alt="" width="188"><figcaption></figcaption></figure> <figure><img src="/files/bovxOlqqnVAzqAETYlZp" alt="" width="188"><figcaption></figcaption></figure></div>

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

<div align="left"><figure><img src="/files/q5UfMglnfQJKezs6FMsC" alt="" width="188"><figcaption></figcaption></figure></div>

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

<div align="left"><figure><img src="/files/VpTaa9IjIgVDQdyzNs9J" alt="" width="188"><figcaption></figcaption></figure></div>

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

<div align="left"><figure><img src="/files/Y0LMb0j1i9MdRluzR3kI" alt="" width="188"><figcaption></figcaption></figure></div>

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

<div align="left"><figure><img src="/files/LC6GS3JlhyGx1DTcoERl" alt="" width="188"><figcaption></figcaption></figure></div>

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.&#x20;

<div align="left"><figure><img src="/files/V3BapHTpE08KEa1JDpqg" alt="" width="188"><figcaption></figcaption></figure></div>

***

### 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.

<div align="left"><figure><img src="/files/cYx6eUgat0IDNhlb36e7" alt="" width="188"><figcaption><p>Mark Event button at bottom</p></figcaption></figure> <figure><img src="/files/x0KKvNopiRb6mGpNsNLJ" alt="" width="188"><figcaption><p>Gray bar represents marker</p></figcaption></figure></div>