Click the "Upload" section on your dashboard.
Select the "Convert Audio from Youtube or Cloud" section.
Enter the Google Drive URL of the video.
! Please make sure that the link or file is public.
Select the language spoken in the video.
Select the service.
How to make a public Google Drive file?
Go to Google Drive, open the file, and click the share button in the upper right.
Click General Access and then choose "Anyone with link" from the dropdown menu.