The programme for this task is still missing. Meanwhile Glenn Fleischman can help you out:
Podcasting involves two distinct tasks. First you have to record the audio and prepare it for listening. Then you need to syndicate it via RSS so others can subscribe to your programs. In this tutorial, Glenn Fleishman shows you some nifty tricks for recording your audio, especially if you want to capture phone interviews for syndication.
MacDevCenter: How to Record a Podcast
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