Audio lessons turn any uploaded source — or any topic you've already covered with the tutor — into a narrated lesson with an introduction, walkthrough, and recap.
To generate one, open a topic from your subject dashboard and select 'Generate audio lesson'. It typically takes under a minute for a standard chapter's worth of content.
Audio lessons are best used for review and pre-loading context, not as a substitute for active practice. Listening to a lesson before a session can make the practice that follows more effective, since you're not encountering the concepts cold.
You can download audio lessons for offline listening from the study tools library.