Convert Podcast to MP3 in Garageband & Export to iTunes

Export to iTunes

1. Select GarageBand > Preferences > General button.

2. Fill in the appropriate information for your play list
a. iTunes Playlist
b. Composer Name
c. Album Name

3. Close the Preferences window.

4. Drag the out point marker from the end of the timeline to end of your finished podcast.

5. Choose Share > Send Song to iTunes.
This will mix down your tracks into a single audio file that will open your
new track in an iTunes playlist with the name you specified in Step 2.

Convert the File to MP3

1. Choose iTunes > Preferences.

2. Click on the Advanced tab at the top of the window and then the Importing tab below.

3. Choose MP3 Encoder from the Import Using: menu and then click OK,

4. Next, choose Advanced > Convert Selection to MP3

5. When conversion is completed there will be two versions of the file in the iTunes playlist.
The original is on the top and new version is on the bottom of the list.

6. Drag the newly created MP3 file to the desktop.