A podcast is a form of digital media that consists of an episodic series of audio or digital radio, subscribed to and downloaded through web syndication or streamed online to a computer or mobile device (Source).
Be careful about copyright. Be sure to check what type of attribution is required for use.
Try to include both verbal and written attribution (in the description of the podcast).
Example: This podcast uses these sounds from [site name]:
sound1 by user1
sound2, sound3 by user2
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