There are two methods described.
Option 1
Navigate to your course in eLC.
Select "Content".
Navigate to a module.
Select "Upload/Create".
From the drop-down, select "Create a File".
Enter a title for the recording and select click the button for "Insert Stuff" button.
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Select "My Media" , to show your library of uploaded recordings will be displayed.
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Select “Embed” next Next to the recording you would like to upload, select “Embed”.
Select "Save and Close".
Option 2
Navigate to your course in eLC.
Select "Content".
Navigate to a module.
Select "Existing Activities".
Select “Embed” next Next to the recording you would like to upload, select “Embed”.
Select "Save and Close".