|You record it! No you record it!|
Tower makes it sound easy. He gives you a microphone suggestion; tells you how to set up your studio; then launches you into making the recording using Audacity. He even gives you a little trick to use when you make a mistake when recording.
Panzer says, "You'll have to Google Audacity and download it. (Mr. Tower doesn't give you a link.)"
If you want to learn how to do your own recording of your short story, tootle over to Let Your Readers Hear Your Voice