Initiating a recording
  • 27 Oct 2021
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Initiating a recording

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Article Summary

To successfully record session data, be sure that the study, participant ID, and other associated metadata are accurately assigned in the Kernel Flow Desktop Application, that the duration of the run is set as desired, and, most importantly that all headset modules appear sufficiently dark green in the Module Status View.

When properly configured, Kernel Flow requires minimal manipulation or intervention during the actual recording of a run. This allows the researcher to focus primarily on the administration of the task or otherwise interacting with the participant.

Recording a dataset

Before recording data can begin on Kernel Flow, a Researcher logs into Kernel Cloud through the Kernel Flow Desktop Application. Once logged in, they will have access to the studies, participant IDs, and other data to which they have been authorized by an organization administrator.

To login to the Flow Desktop Application:

You can login to the Kernel Flow Desktop Application either by entering a one-time passcode, or by scanning a QR code from within the Kernel App.

  1. In the Record Session section of the Flow Desktop Application, click Login.
    The Authentication dialog opens.
  2. Enter your email address and click Login.
    An email is automatically sent containing a unique one-time code.
    The Confirm Authentication window opens.

    You can now log in using either:

To login using the one-time code:

  1. Switch to your email program, 
  2. Locate the email from Kernel Support.
  3. Copy the unique code in the email to the clipboard.
  4. Switch back to the Kernel Flow Desktop Application and paste the code from the clipboard into the Confirm Code field. 
  5. Click Confirm.
    You are logged in.

To login using a QR code:

  1. Open the Kernel App on your iOS or Android device.
    The account logged into the Kernel App must be the same account as the one attempting to log into the Kerne Flow Desktop Application. 
  2.  Tap the Profile icon in the lower right to open the Profile page.
  3. Tap the QR code icon in the upper left to launch the QR code scanner.
  4. If you haven't already, Click OK to grant access for the Kernel App to use your device's camera.
  5. Point the camera at the QR code on the computer screen.
    When the code is successfully read, a confirmation dialog will appear.
  6. Click Done.
  7. You are logged in. 
Image: Lightbulb icon.
You can also record "offline" or locally—where the Kernel Flow PC is not connected to an active Internet connection. In this case, you will be limited to assigning the metadata (Study, Task name, etc.) that were available when the system was last connected to the Kernel Cloud servers. Once the PC is reconnected to the Internet, any data captured offline will automatically be uploaded. 

To begin recording:

  1. Follow the instructions in the Getting Started section to Initialize the headset, fit the headset properly on the participant, and tune the lasers.
  2. Be sure you are logged into the app.
    If you belong to only one organization, that organization is automatically loaded.
  3. If you belong to more than one organization, Click the Organization pop-up menu and select the one associated with the session you plan to record.
  4. Click the Study pop-up menu and select the name of the study to which you want the recorded data associated with.
  5. Click the Participant ID pop-up menu and select the ID that corresponds with the participant who is wearing the headset.
  6. Optionally select a Task name from the Task pop-up menu. To learn more about Task names, see Adding Task names.
    Image: Lightbulb icon.
    If you add a new Study, Participant ID or Task name in the Researcher Portal while the Kernel Flow Desktop Application is open, you must click Refresh in the Data Acquisition area of the Desktop Application to see those new items appear in the corresponding pop-up menus. To learn more see Managing Kernel Cloud
  7. Optionally enter a maximum duration in seconds (i.e. 10 minutes = 600) in the Max Duration field.
  8. Optionally enter a session number, name, and description.
  9. Optionally click Capture Sizing Infoandin the window that appears, identify which sizing bars are used, and any measurement values. 
  10. Click Record.
    A confirmation dialog appears. Once you are ready to begin, click Record.

    Image: Alert icon.
    Participants must explicitly provide consent by accepting a participant Invitation Code before their session data may be viewed, downloaded, or analyzed. To learn more, see Inviting Participants

The system begins recording and continues to record until the maximum duration set in step 9 above is reached, or until the recording is manually stopped.

To interrupt a recording in progress:

  • Click the Stop Recording button.

The Recording will stop, and all data are uploaded to Kernel Cloud.