Kaltura is a set of tools for media hosting and delivery. It is integrated with other tools, including Canvas, for hosting video and audio content for classes and Zoom for storing meeting recordings. 

Lecture capture is an umbrella term describing any technology that lets instructors digitally record their lectures (using audio and/or video, screen capture, or PowerPoint slides) and make those recordings available to students.

There are a variety of options for Lecture Capture - recording right from your own computer or in a classroom using the Kaltura Platform.