Ready to get started?
What's the workflow like?
Learn the basics of Garageband
Check out an example
Where can I go for archived audio?
There is a misconception that podcast producers can use limited portions of audio in their episode. You can’t!
What you can do is reach out (Twitter is excellent for this) and request using a snippet from an interview.
Alternatively here are stellar resources which are under the correct license:
Free to use music is available here
The Internet Archive has usable audio footage from dozens of sources, to see it click here
Start a free account with this site for access to excellent free audio to use