Kaltura Streaming Media Server 

Why Kaltura?

Kaltura is a web-hosted streaming media service for NAU. A streaming media server works kind of like an NAU managed (with more privacy options), version of YouTube, with both recording and playback capabilities. However, unlike free YouTube, there is no video file size limit or 15 minute length limit, and things don't get taken down unexpectedly. Media files are large, and they need to be delivered at different quality levels, file sizes, and file types, depending on the device that will consume them. A dedicated streaming media server has a variety of benefits:

  1. Centralization: A single, centralized location for media asset management and distribution. Cline Library, Disability Resources (the Usable Materials Center), e-Learning, Marketing, Extended Campuses, Communications, Performing Arts, and other interested groups can all use the same centrally managed and supported system.
  2. Control: Unlike You-Tube and other free services, we can't unexpectedly lose access to our content, media assets can be of any length and quality level we want, and there are no limits to what we can store. NAU pays for it, but it's free to all NAU users, and you can make your videos public if you want.
  3. Optimization: The system can ingest media of a variety of file types (.wmv, .mov, .mp4, .m4v), and detects the device type so that the content can be delivered in the appropriate file format and file size for a wide range of devices, including mobile. This is far superior to manually creating multiple versions of the files and hoping that the end-user picks correctly.
  4. Speed: A streaming server delivers the content in a data stream so that the end user can begin viewing before the entire file is delivered. This is far superior to systems like Blackboard, where the entire file must be downloaded before viewing can begin.
  5. Copyright Protection: Because files are streamed, they are not saved on the end user’s device, taking up storage space and possibly leading to illegal distribution of content. Media assets are catalogued so that sets of users can have different access privileges.
  6. Efficiency: Blackboard and other servers will require less storage and run more efficiently when relieved of the need to deliver large media files. In Blackboard, media files are duplicated each time a course is copied forward to a new semester. The streaming media server will contain only a single copy of each file, reducing storage needs.
  7. Accessibility: Media can be captioned for accessibility, helping us to meet our ADA Section 508 legal obligations. Free machine captioning (~70% accuracy) is coming soon, and our Disability Resources office can do even better.
  8. Metadata: Advanced tagging and asset description makes searching for media easy, and analytics are available to analyze who's watching.
  9. LMS (Blackboard) Integration: The streaming media server is available direct from the Learning Management System.
  10. Hosted Solution: Higher reliability and better support than locally managed options.

Option 1: Access Kaltura via the LMS (Blackboard Learn)

You can access Kaltura from inside Bb Learn, but you will first need to enable the tool in your Blackboard course.

A. Enable Kaltura: Go to the Course Management Control Panel, and choose Customization/Tool Availability

enable tool

Check the boxes next to Kaltura Media in the list, and click Submit.

checkbox

B. Embed Media: From the Course Content area in Bb Learn, you can access Kaltura in three ways:

    1. Build Content/Kaltura Media
    2. Tools/Kaltura Media
    3. From the HTML Editor, select Mashups/Kaltura Media

mashup

Once you're logged in, you will have access to the "My Media" page, which contains media items you own, and you can search or browse for shared media created by others. You can also record using the Add New menu (see below).

explore!

C: Captions: There is a free cross-platform tool called Aegisub that you can use to create the subtitles, and when you Export, .SRT is one of the file type options. Kaltura supports two caption file types; .SRT and .DXFP

At NAU, the Usable Materials Center at Disability Resources handles captioning requests.

To manually add captions (subtitles) to a video in Kaltura, select Edit from the Actions menu under the video. 

actions

In the third tab, select Captions and upload the SRT file. Once a caption file is associated, the CC icon will appear in the player controls.

captions

D: Sharing: Upon upload, it's important that you add meaningful tags to your video so you can find it later when searching. You can upload, but will not be able to Publish a media item until you have added some metadata. If you first upload a media item without adding any tags or description, it will be either Private or Unlisted. You can return later and Edit the item, adding tags and a description. You have several sharing options on content you upload:

E: Publishing: When you Publish your media, you have the option to put it in a Category or a Channel. Note: If you don't have a channel, you will need to create one. Otherwise, the Publish option won't be available. Channels give you more privacy options than Categories.

publish

i. Categories: Sometimes referred to as "galleries," Categories are public facing, so this option should generally not be used except by Marketing or for items you want to be available to the general public.

ii. Channels: Channels can be privacy-restricted in a variety of ways. Only people with access to that channel can view it. You can set restrictions on channels you own from the Actions/Edit menu. Channels have the following access options:

Channel Options: These options allow you to control who can put media in a channel, and who can comment on it.

Channel Membership:

To add members to a private channel, edit the channel, click on the Members tab, and click the Add Member button. You will need to know their NAU IDs. If you need to look someone up, you can use the Bb Learn course roster, or you can do a people search in my.nau.edu.

members

Playlists: A playlist is a list of media items (videos, audios, images) that can be embedded with a player in your website. While Playlist sounds like a useful way to distribute media, Channel is the recommended option. You can make as many channels as you like, and set permissions differently on each channel.


Option 2: Access Kaltura via the MediaSpace website

Login: To log into MediaSpace, open the link (mediaspace.nau.edu) in your web browser, and log in using the menu in the upper right. Use your NAU credentials.

login

Add New: You can add media from one of these sources: 

    1. Media Upload: browse for a media file on your computer (most common media file types are supported)
    2. Record a Presentation: the Kaltura CaptureSpace Desktop Recorder application must be downloaded and installed the first time you use it.

new menu

If you select Record a Presentation, the following window will open.

capture

This tool allows you to record a) your screen, b) your screen and a webcam, c) your webcam, or d) your voice.

Analytics: You can access the analytics on any video you own to see who's watching it, for how long they watched, when they watched, etc. Just go to the video and select Analytics from the Actions menu.

analytics


Best Practices:

What are some suggested instructional uses of video? The best uses involve short video clips, both because attention spans are short, and because brief videos take up less space. Videos are most effective if they are engaging, well rehearsed, and brief. TED talks are a good example.

    1. Lecture Introduction: Give a brief big picture introduction to the lecture that explains its importance or relevance.
    2. Lecture Review: Provide a review of the most important point(s) covered in lecture that students will be tested on.
    3. Difficult Concept: Provide a detailed video on a difficult topic that many students find confusing.
    4. Case Studies/Scenarios: Show students videos that you'd like them to comment on, as a prompt for discussion.
    5. Sample Problems: Work through some sample problems step by step.
    6. PowerPoint Annotation: record a voice annotation of your PowerPoint slides.
    7. Invited Speaker: create an archive of guest lectures by invited speakers.
    8. Performances: record exceptional student performances as a model of quality work to show to future students.
    9. Presentations: record exceptional student presentations as a model of quality work to show to future students.
    10. Lecture Capture: not the best use, because raw footage is dry and non-interactive, but may be of value in some cases, such as for students who missed class.

Terms of Use:

The NAU Network Acceptable Use Policies for Faculty/Staff and Students governs the use of the Kaltura System. Additional terms of use indicated below also apply. Any materials in violation of these policies may be removed without notice and, depending on the nature of the violation, the individual who uploaded the content may be subject to disciplinary or legal action by NAU or the injured party. The following is an overview of types of content that could be in violation of the Use Policies.

Media Release

Please review NAU's FERPA policy before posting any video or audio recording involving students. If the recording was made in a non-public setting, or if students are required to participate as part of their grade in a class, then media releases will be necessary. If the recording is intended to be shared more broadly than with members of the current class, media release forms must be signed by all participants and archived by the producer of the media. In the case of minors, releases must be signed by parent/guardian. Students who do not sign the media release must be excerpted from the published media.

Copyright

Except as allowed by Educational Fair Use and/or Teach Act guidelines, users are not permitted to upload any media for which they do not own the copyright or have permission of the copyright holder. Cline Library staff can assist you with copyrighted content covered under NAU's licenses, and with general copyright questions.

Objectionable Content

Content should be appropriate for posting on an NAU server, and should serve an academic/instructional or NAU marketing/public relations purpose. Any content deemed inappropriate or detrimental to Northern Arizona University, at the discretion of the administrators of this system, may be taken down without notice. Exceptions to these policies will be considered where there is a justifiable educational purpose that cannot be met in other ways. You may report objectionable content for review by system administrators.

Accessibility 

Media should have closed captions or a text transcript equivalent. Requests for making video content accessible may be made by completing the Usable Materials Request Form. Questions may be directed to usable.materials@nau.edu or 928-523-8773

Copying and Distribution

Media on this server, except where it is made public, is for the use of NAU faculty, staff and students only. Attempting to defeat copy protection is prohibited. Copying of media stored on this system is prohibited. Distribution of media stored on this system is prohibited.