Kaltura Webcasting - Managing Slide Broadcast

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Slides are an integral part of a Kaltura Webcasting event, and provide attendees with the option of seeing the slides along with the speaker without live mixing capabilities. The slides are also available in the VOD for metadata and search purposes.

After you create and set up the Kaltura Webcast Event and have exported or manually migrated the stream ID and primary and backup URLS to your live encoder you are ready to start streaming. 

The following topics are described:

Uploading Slides

The Webcasting Application enables you to upload the slide deck, change the the deck in-mid broadcast, and even run a broadcast without the slide deck. These options are enabled through the Timeline Content Settings, located on the bottom right-hand side of the application.

To add a new slide deck

  1. Click Add New Slide Deck, then browse to the slide deck, select it to upload the deck.

  2. When the slide deck has been uploaded, the slides will not be broadcast until you click Place in Timeline.

    The following illustrates slides displayed in the Timeline. 

  3. Click  Replace Slide Deck or Clear Timeline to replace or clear.
  4. Confirm the removal of the previous slide deck and the upload of the new deck, and then apply the slides to the Timeline tab at the bottom of the Webasting Application. 

  5. To hide the upload section, click the show/hide button .

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Broadcasting Slides

The current slide will be broadcasted only after you apply the uploaded slide deck to the Timeline area at the bottom of the Webcasting Application. The slides are broadcasted alongside the video. At any point during the event, the producer, moderator and presenter can advance or backtrack to a specific slide in the presentation.

As part of the processing for slides, each slide is turned into an image file. All text in the slide is extracted to enable search and discoverability of slides both during the live event and when viewing the VOD. 

Slide animations and videos embedded in slides will not be available as part of slide broadcast in Kaltura Webcasting. 

To broadcast a specific slide

At any time during the live event, you may navigate to a specific slide using one of the following methods:

  • Using the arrows that appear on the current slide to advance or backtrack to a previous slide
  • Entering a slide number in the box on the current slide
  • Double clicking a slide in the timeline 

Anyone with the Webcasting Application can change slides. This means that if someone changes the slides, the slides will be updated for everyone that has the application open.

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Navigating Slides

At any point during the event, the producer, moderator and presenter can advance or backtrack to a specific slide in the presentation.

To navigate between slides

  • At any time during the live event, you may navigate between slides using one of the following methods:
    • Using the arrows that appear on the sides of the slide presentation to advance or backtrack to a previous slide
    • Entering a slide number in the box on the current slide
    • Double clicking a slide in the timeline

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Extending Your Presentation to Another Display Screen

The Kaltura Webcasting software enables you to extend your presentation to another display screen using the projector icon. Clicking the projector icon enables you to show the live event on an extended screen to a local audience.

Browsing Slides in the Presentation Timeline

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

  • Press 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.
  • When you are browsing, changing slides on the slide presentation will not affect the slides viewed in the timeline. Click the Sync Timeline and Presentation icon [Alt + up arrow] on the lower left of the timeline (or [Ctrl + G] keyboard shortcut) to show the next slide in the center of the timeline and sync the timeline and presentation.

Note: The slide that appears in the middle of the screen is the next slide, not the current slide, while the timeline shows a preview of the entire slide deck. 

Note: You can also use an external clicker to switch slides, as long as you map the clicker to the same keyboard shortcuts as defined in the application.

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Displaying Speaker Notes

To display speaker notes from your PowerPoint presentation

At any time you can display or hide the notes that were created and uploaded with your presentation. Click on the Notes icon to display or hide your notes.

 

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Modifying and Changing Slides

You can easily navigate through video content using slides and chapters in Kaltura Players using the Navigation Menu. You can add, edit, and delete chapters and slides when editing videos through the Kaltura media portals. 

Slides are automatically created when a presentation is recorded using Kaltura Webcasting. See Editing/Deleting Chapters and Slides for Webcast Events for details.

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