Kaltura Webcasting - Producer's and Moderator's Guide

This guide provides information about how to setup and use  Kaltura Webcasting. 

If you are a system administrator, please refer to the Kaltura Webcasting - Administrator's Guide.

If you are unable to find the information you are looking for, please use the search bar, or report a missing information here. 

Introduction to Kaltura Webcasting

Kaltura Webcasting is fully integrated with the user's video portal. It supports internal delivery, ingestion from different encoders and source types, archiving of webcasts to your VOD portal and enhanced interactive features. Kaltura’s Webcasting solution allows you to optimize internal communication and increase return on investment for customer facing communications. Kaltura’s Webcasting is delivered behind the firewall and public internet and offers security and flawless playback as well as unicast and multicast streaming. 

Kaltura Webcasting is tightly integrated into the Kaltura MediaSpace portal, for easy mapping of existing business rules and departmental categorization of respective Webinar sessions. Kaltura Webcasting supports directly starting a live stream from your Kaltura MediaSpace session. As live events scale out to many sites across the globe, internal delivery is critical to avoid WAN bottlenecks. Kaltura supports both hybrid installations of an on-site unicast/multicast delivery solution with cloud based video management, or fully internal installations of the Kaltura platform including Kaltura MediaSpace.

Preparing a Webcast Event 

[collapsed title="Schedule a Webcast Event"] 

Scheduling a Webcast Event 

  1. Login to Kaltura MediaSpace or follow the instructions for login provided by your system administrators.
  2. Click on the Add New button and select Webcast Event.

    The Schedule a Webcast Event screen appears.

  3. Enter the values for the following fields:
    • Name (required)
    • Description – provide an agenda for the webcast
    • Tags
    • Date of the event.
    • Start Time
    • End Time
    • Select the time zone from the drop down menu.
  4. Click Create Event.
    A message that the Webcast Event was successfully created is disaplayed. 

    The folllowing publishing options are presented:

  5. (Optional) Piublish your webcast event. Select a publishing option. You can choose to publish the Webcast at this time by selecting the Unlisted option or Published option and choosing the categories and channels to publish to. You can always publish later time.
  6. Click Save and then click Edit Webcast to complete the webcast event definitions and functionalities. 


Edit a Webcast Event 

Editing a webcast event allows you to update information about the event, upload a slide deck, upload a thumbnail for the event, add presenters’ information and get the live stream details to input into your encoder.

The Edit page is comprised of several components:

  • The Rich Media Kaltura Player
  • The Kaltura Webcast Event date and time
  • Invite Attendees button  - Downloads an ICS file that you can use to add to invitees' calenders.
  • Launch the webcast application button – Use the link to download the webcast application. Click here to download.
  • Links to Editing tabs. Click on the links to learn more about them.
  • Link to View Event page.

[collapsed title="Details Tab"]


You can modify the following information:

  • Name of the Webcast Event
  • Description of the Webcast Event
  • Tags of the Webcast Event
  • Start Time of the Webcast Event
  • End Time of the Webcast Event
  • Time Zone of the Webcast Event
  • Upload a slide deck to be used in the Webcast Event
Click Save to save the changes.

[collapsed title="Upload a Slide Deck"]

To upload a slide deck

  1. In the Webcasting Edit EventClick Details.
  2. Select Upload Slide Deck.

  3. Select the slide deck from the file browser and click Upload.
    The slide deck will then be uploaded and processed. You may continue working on the page, while this is done in the background. When the slide deck is fully processed and ready to be used in the webcast event, there will be a notification saying “Presentation is ready”.
  4. You can cancel the upload and slide deck processing by clicking Cancel.

  5. Click Save to save the changes.
    • Supported versions for slide deck upload are .PPT. PPTX. at this point.
    • The Launch the Webcast Application button only enabled when a slide deck is uploaded.
    • If no thumbnail was uploaded for the event, the first slide will be used as a default thumbnail.



[collapsed title="Presenters' Tab"]

    1. Choose the Presenter's tab and click Add Presenter.
    2. Add the below information:
      • Name of the Presenter.
      • (Optional) Link - A link to an external page showcasing the presenter's information (like a LinkedIn profile)
      • The title of the Presenter.
      • (Optional) A paragraph summarizing biography of the Presenter.
      • (Optional) Choose an image and Upload.

    3. Click Save Presenter.Click Save Presenter.
    4. Additionally, you can also Edit a presenters’ information by clicking the pencil icon next to it, or delete it by clicking the X icon.

To Add additional presenters

  1. Choose Add a presenter
  2. Follow the steps to add a Presenter's information
  3. Click Save.



[collapsed title="Live Stream Details Tab"]

This tab provides you with the following information.

  • Primary URL
  • Backup URL
  • Stream Name
  • Export XML

If you are using FMLE, you may export an XML that includes all encoding parameters as an easy to open profile by clicking Export XML for FMLE button.

To start streaming video to the Webcast Event

  1. Paste the parameters to the encoder of your choice from the Live Stream Details Tab.
  2. If you are using FMLE, you may export the XML by clicking Export XML for FMLE button and open the downloaded XML as a profile in the FMLE.
  3. Start streaming.



[collapsed title="Share"]

  1. To access the share option.
  2. Go to my media and click on the Webcast Event.
  3. You will see the following window

  4. Click Share. You can choose from the following options.
  • Link to Media Page
  • Embed Code
  • oEmbed Code

You can send the above links to the attendees to get direct access to the Webcast Event. Please refer to Authentication and Authorization MediaSpace users to provide access to the appropriate audience.



Using Kaltura Webcast Application

The Kaltura Webcasting Desktop Application is an advanced webcasting tool for streaming live video with slide synchronization, automatic recording and real-time reports. 

If you are using a computer that doesn’t have the desktop application installed, you will need to install the application.


[collapsed title="System Requirements"]

The following are the minimum system requirements to set up the Kaltura Webcasting Desktop Application.

  • WindowsTM 7,8, 8.1.



[collapsed title="Prerequisites"]

  • Live Encoder.
  • ppt ot pptx formatted presentation file.
  • KMS instance.



Install Kaltura Webcast Desktop Application


[collapsed title="Install Kaltura Webcast Desktop Application"]

Installing the Kaltura Webcasting Desktop Application

  1. If you are using an Internet Explorer or FireFox browser, Click Launch the webcast application
  2. If you are using a Chrome or Safari browser, click the link in the line Don't have the application? Download here! 

  3. You will be redirected to a download page.
  4. Click Download for Windows

Run the .exe file to start the installation and follow the installation instructions.



[collapsed title="Launch Kaltura Webcast Desktop Application"]

To launch the webcasting desktop application

  1. Make sure you have uploaded a slide deck for the event
  2. Click Launch the webcast application

    Note: When using the application for the first time you may be prompted by the browser to approve the application. Each browser may prompt you with a unique message.

    The following screen shows the External Protocol Request window as it appears when using Chrome.

  3. If you check Remember my choice for all links of this typeyou won’t be presented with this confirmation screen again.
  4. Choose Launch Application to open the Kaltura Webcast Application.

  5. You are now presented with the Kaltura Webcast Desktop application. 



Presenting a Live Webcast with Slides


[collapsed title="Broadcasting Slides"]

To start broadcast slides

  1. You can broadcast slides only when the video stream is being broadcasted
  2. When the video stream is broadcasting, you will be prompted with a message asking if you want to broadcast slides

  3. Click Yes to start broadcasting the current slide
  4. You can always start and pause slide broadcast by
  5. Click Start broadcasting to start broadcasting slides from the current selected slide.

  6. Click Pause broadcasting to pause broadcasting slides. 



[collapsed title="Changing Slides"]

There are several ways to change the currently presented slide.

To Change Slides:

  1. Click the arrows on the presentation to change the slide to the next or previous.

  2. Or double click on the slide you want to go to on the slide timeline
  3. Alternatively, You can use the following keyboard short cuts:
  • Spacebar – Go to next slide.
  • Backspace – Go to previous slide
  • Use [Alt + up arrow] to go directly to the center slide on the timeline.



[collapsed title="Browse Slides on the Timeline"]

You can browse through the slide deck on the timeline area to preview other slides and to skip directly to present a designated slide.

Browsing through the slide deck:

  1. Use the arrow buttons on the sides of the slide deck timeline, or use [Alt + right arrow] or [Alt + right arrow] keyboard shortcut.
    Clicking and holding the arrow, will accelerate the slide browsing speed.
  2. When you are browsing, changing slides on the slide presentation will not affect the slides viewed in the timeline. Click the  button below the timeline (or [Ctrl + G] keyboard shortcut) to show the next slide in the center of the timeline and sync the timeline and presentation again timeline.
  3. You may double click any slide to change the presented slide. Using [Alt + up arrow] changes the presented slide to be the slide in the middle of the timeline.



[collapsed title="Access Notes on Presentation"]

Notes are taken from the uploaded presentation and are shown for the currently presented slide.

To access notes on the presentation:

  1. Click the Notes icon or use [Alt + N] keyboard shortcut.

  2. It opens the notes section, displaying the accompanying notes on current slide of this presentation.
  3. Click the same icon to close the notes.



[collapsed title="Understanding Live Analytics"]

The following data appears in the live analytics section

  1. Number of current attendees in the number on the top right
  2. Number of attendees with historical data in the graph.
    Note: if the webcast event is longer than 30 minutes, you may view historical attending data by using the scroller below the graph. If you scrolled back, you can go back to viewing the last received data by clicking the   button that appears on the top right of the graph.
  3. Average bit rate – the average bitrate the attendees are viewing in the last minute
  4. Average buffering –the average buffering time the attendees are experiencing in the last minute.


Attending a Webcast Event 


[collapsed title="Viewing Webcast Event"]

The Kaltura Webcast Desktop Player is the front-end interface used to view live webcast and/or recorder webcast captured from Kaltura Webcast Desktop Application. The Kaltura Player provides you with multiple interactive viewing options, such as Picture in Picture, Side by Side and other displays. The following screen displays the viewing options available in the Kaltura Webcast Player.


Interactive Viewing

The following lists the Kaltura Webcasting Player's interactive viewing options:

  • Picture in Picture - Enables you to view the captured content, the presentation and the video, in a single player (Figure 1 Picture in Picture).
  • Side by Side - Enables you to view the content in two equal parts of the screen, where the presentation and video is displayed side by side (Figure 2 Side by Side).
  • Single View - Enables you to view the content captured in a specific stream, either presentation or video, in a single player (Figure 3 Single View).
  • Toggle - Enables you to toggle between the content captured through different streams (Figure 4).

Picture in Picture (Figure 1)

Side By Side (Figure 2)

Single Screen (Figure 3)

Toggle Screen (Figure 4)


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