Sign into Canvas, and go into your course. You should see Studio in the left-hand navigation. Be sure to check at the bottom of the course navigation. If you want it moved further up go to course settings, select the navigation tab and move it further up in your course navigation menu. Save the setting then go back to the course navigation menu and click on Studio.
You will then be taken to your Library of Canvas Studio Recordings. If you do not have any particular recordings for this specific course, Studio will show that there are no videos in the course yet. To add recordings to the course, click the Add + button.