Remote teaching!


Due to the Corona (CoViD-19) crisis we have started to use the Kaltura Live Rooms software to facilitate remote teaching.

Currently we have the English manual written and published including a Troubleshooting chapter. Please refer to these manuals before you ask questions at the ISSC!

Kaltura Live Room (introduction)
Create a channel for your room
Hosting your room
Using the room tools
Analytics, Files and Attendance

A Nice set of videos made about the use of Live Rooms can be found here:

English (Official):


The Dutch manual will follow as soon as possible.

New sharing option: Unlisted Sharing

Today we will release a new option to share your media. The option is called ‘Unlisted Sharing’ and contrary to publishing media to a channel or category this media does not have to be linked in such a way.

Another feature of unlisted sharing is that media shared through this method is not searchable by any of the crawlers of search engines like Google. This means that only the people who have access to your link because it was given to them will know where to go.

However, obviously, these types of links can be found by sheer guesswork or ‘hacking’ and as such this is not a way to share sensitive content.

Another feature of unlisted sharing is that content shared this way is publicly viewable without logging in using a ULCN login. Anyone who gets the link has access to the content!

Whilst we love this option we also must stress that sharing content as unlisted requires careful thought when it comes to both copyright as the AVG. For this reason we refer to our terms and conditions clause as well as the below text which is part of the disclaimer when you add new videos to the platform:

Students and employees of Leiden University may upload videos on Kaltura. Only upload videos that you made or that you are authorized to use. You must own the copyright to your video or hold permissions from the copyright holders.

It is permitted to use Kaltura to show licensed videos in the classroom during a lecture or tutorial, when security is set to show the video only in the classroom (i.e. video is set to ‘private’ \ ‘not published’).

It is not allowed to upload medical video recordings on Kaltura without the written consent of the patients. Uploading video recordings of minors is only permitted with prior written consent of the minor’s parents or carers.

If you believe your copyright-protected work was posted on Kaltura without authorization, you can send an e-mail message to:

Leiden University expressly disclaims all liability for damages in any way resulting from or in connection with the use of videos on Kaltura.

We’ve updated our manuals with a how to on publishing unlisted videos. You can find them here:

Unlisted Sharing (NL)
Unlisted Sharing (ENG)

Closed Captions reimagined

Dear reader, a lot has happened with our closed captioning system. Not only did we recently add new languages such as Hindi, Cantonese, Chinese Mandarin, Spanish and German with French being activated soon as well we have revamped the look for our captions to be more easily readable and to comply with best practices for closed captioning.

We have changed the background color to match the university blue and made the font white and a lot larger. This should help readability.

To enable captions (when available) simply click on the CC button in the toolbar below the video and choose the available language.

We are also looking into enabling subtitling in the near future.

New Feature: Interactive Video

We have been releasing a lot of new features on our portal but this one takes the cake!

We are proud to have released the Interactive Video option.

Interactive Video allows you to create videos through which you can link several videos together in order to create a more seamless experience for learning, marketing and other goals.

It also allows you to link to content outside of the video through the use of hotspots.

By creatively using this tool you can create an interactive video that would guide a person through several videos whilst also asking questions in the video where the user can answer by pressing on hotspots. Is the hotspot incorrectly chosen you can guide him or her to additional explanations on the subject or towards the start of the topic.

The biggest advantage is that it keeps users on their toes, they cannot simply sit back and enjoy the ride, they have to engage the content which has been proven to improve susceptibility to said content.

We wish you happy editing!

For information on how to use the tool:


6. Interactieve Video’s


6. Interactive Videos